Prof.
Peter Skalicky
(Rektor magnificus TU Vienna)
19/02/2007, 10:00
Invited Talk
Dr
Hanslik
(Federal Minstry of Science and Research)
19/02/2007, 10:15
Invited Talk
Prof.
P. Schuster
(President of the Austrian Academy of Sciences)
19/02/2007, 10:30
Invited Talk
Paul Lecoq
(CERN)
19/02/2007, 10:40
Invited Talk
Since the discovery of X-Rays by Roentgen in 1895 physicists have played a
major role in the development of medical imaging instrumentation. More
recently the technological developments in several areas of applied physics,
the new generation of particle physics detectors and the development of an
information based society all combine to enhance the performance of
presently available...
Marco Garbini
(INFN Bologna)
19/02/2007, 11:35
Contributed Talk
The EEE (Extreme Energy Events) Project is an experiment to study very
highenergy air showers through the detection of the muon component
using a network of tracking detectors, installed inside Italian High Schools.
The EEE project is supported by INFN, CERN, Ministero dell’Universit `a e
della Ricerca (MIUR), Centro Fermi and conceived by its leader Antonino
Zichichi. The single...
Melisa Luca
(Uni Claude Bernard Lyon)
19/02/2007, 12:00
Contributed Talk
EDELWEISS is a direct dark matter search looking for Weakly Interacting
Massive Particles (WIMPs). In order to measure the low energies of nuclear
recoils coming from the scattering of WIMPs from the galactic halo,
EDELWEISS uses very sensitive Ge cryogenic detectors in a low radioactivity
environment. During its first stage, up to 3 Ge 320 g detectors have been
used simultaneously....
Hiroyasu TAJIMA
(SLAC)
19/02/2007, 14:00
Invited Talk
The origin of cosmic rays has been a great mystery since they were
discovered by Victor Hess in 1912. The AGASA observation of ultra-high-
energy cosmic rays (UHECR) possibly beyond the GZK cutoff stimulated the
field a great deal. In addition, the Kamiokande detection of neutrinos from
SN1987A and the H.E.S.S. detection of TeV gamma-rays from supernova
remnants demonstrated the...
Frédéric Druillole
(Saclay)
19/02/2007, 14:50
Contributed Talk
The ANTARES telescope is a device of a 0.1 km size to detect high energy
neutrinos. It is located in the Mediterranean Sea at a depth of 2500 meters.
It consists of a three-dimensional matrix of optical modules (OM) containing
photomultiplier tubes. As of September 2006 two complete lines and an
instrumentation line, called MILOM, are deployed and fully operational for
data taking....
Marcos Dracos
(CNRS/IN2P3 Université Louis Pasteur)
19/02/2007, 15:15
Contributed Talk
The main task of the Target Tracker of the long baseline neutrino oscillation
OPERA experiment, is to locate in which of the target elementary
constituents, the lead/emulsion bricks, the neutrino interactions have
occurred and also give calorimetric information about each event. The
technology used consists in walls of two planes of long plastic scintillator
strips, one per...
Mikhail Danilov
(ITEP)
19/02/2007, 16:10
Contributed Talk
The CALICE collaboration is presently constructing a test hadron calorimeter
(HCAL) with 8000 scintillator tiles read out by novel Geiger mode semicon-
ductor photo detectors - Silicon Photomultipliers (SiPMs). This prototype is
the first device which uses SiPMs on a large scale. We present the design of
the HCAL including scintillator tile - WLS fiber - SiPM systems, mechan-
ics,...
64.
Single photon timing resolution and detection efficiency of the DASIPM silicon photo-multipliers
Gianmaria Collazuol
(Scuola Normale Superiore, Pisa)
19/02/2007, 16:35
Contributed Talk
Silicon photo-multipliers (SiPM) consist in matrices of tiny, passive quenched
avalanche photo-diodes connected in parallel and operated in Geiger mode.
Their capability to detect low optical photon fluxes with unprecedented
amplitude resolution and their extreme single photon timing resolution
make SiPM’s suitable for many applications. The DASIPM 1 collaboration
between the Italian...
Satoru Uozumi
(Shinshu University)
19/02/2007, 17:00
Contributed Talk
The Multi Pixel Photon Counter is a novel semiconducting photon counting
device made by Hamamatsu Photonics K.K. based on concept of Silicon Pho-
tomultiplier. The MPPC consists of 100-1600 APD (avalanche photo-diode)
pixels, and each pixel works in limited Geiger mode with inverse bias voltage
around 80 volts, which is a few volts above breakdown voltage. The MPPC
has excellent...
Christian Joram
(CERN)
19/02/2007, 17:25
Contributed Talk
The X-HPD concept is a modern implementation of the Dumand and Lake
Baikal approach to large area photon detectors, primarily aimed for water
based Cherenkov detectors. The main components are an almost spherical
vacuum tube of 8-inch diameter and a LYSO scintillation crystal mounted in
the centre of the tube. The scintillation light produced after the impact of a
photoelectron which...
Robert Scheuermann
(PSI)
19/02/2007, 17:50
Contributed Talk
The development of scintillation detectors to be used in a high magnetic field
environment requires novel photodetectors to substitute photomultiplier tubes
(PMTs). Avalanche microchannel photodiodes (AMPDs) are competitive to
PMTs in terms of gain and photon detection efficiency and insensitive to
magnetic fields. In this work we use AMPD arrays to build fast timing and
large area...
Maxim TITOV
(Freiburg University)
20/02/2007, 09:00
Invited Talk
Almost one century after its origin, and thirty years after the invention of
the Multi-Wire Proportional Chamber, the field of gaseous detectors is far
from being fully exploited. With the increasingly stringent constraints of
modern experiments, particularly concerning high rate capability and
radiation resistance, spatial resolution and homogeneity of large sensitive
area...
Joerg Dubbert
(MP-Inst. f. Physik, Munich)
20/02/2007, 09:55
Contributed Talk
The ATLAS experiment at the Large Hadron Collider (LHC) at CERN is
currently being assembled to be ready to take first data in fall 2007. Its
muon spectrometer is designed to achieve a momentum resolution of better
than 10% at pμ = 1 TeV. The spectrometer consists of one barrel and two
endcap superconducting air-core toroid magnets and is instrumented with
three layers of Monitored...
Maria Chamizo Llatas
(Cent.de Investigac.Energeticas Medioambientales y Tecnol. (CIEMAT))
20/02/2007, 10:20
Contributed Talk
During summer 2006 the solenoid magnet of CMS was tested for the first
time at its nominal field of 4T with a slice of each sub-detector operational.
The first results and lessons learned with the cosmic runs taken in this
configuration will be presented here with emphasis in the muon system. The
magnet test has provided a unique opportunity to demonstrate the
combined operation of...
Ulrich Frankenfeld
(GSI Darmstadt)
20/02/2007, 11:20
Contributed Talk
The Time Projection Chamber (TPC) is the main tracking detector of the
heavy ion Experiment ALICE at the CERN Large Hadron Collider (LHC). The
field gage manufactured of carbon fiber composites has a total volume of 95
m 3, the readout chambers instrument the two end-plates of the TPC
cylinder with an overall active area of 32.5 m 2. The detector covers the
pseudorapidity range |η| <...
Gabriele Chiodini
(INFN Lecce)
20/02/2007, 11:45
Contributed Talk
Extensive tests with cosmic rays have been performed with RPC trigger
chambers installed in sector 13 of the ATLAS muon spectrometer. We
illustrate the effort and report the results of this pre-commissioning phase,
which rappresent a test bench to address the final commissioning of ATLAS
RPC by cosmics rays. The tests done are mainly concentrated to establish a
set of software and...
Tanja Haas
(Phys. Institut Heidelberg)
20/02/2007, 12:10
Contributed Talk
The LHCb experiment is a single arm spectrometer, designed to study CP
violation in B-decays at the Large Hadron Collider (LHC). It is crucial to
accurately and efficiently detect the charged decay particles, in the high-
density particle environment of the LHC. For this, the Outer Tracker (OT) is
being constructed, consisting of ∼55,000 straw tubes, covering in total an
area of 360 m...
Graham Smith
(BNL)
20/02/2007, 14:00
Invited Talk
Neutrons and X-rays are two of the most important probes in studies of
materials and physical phenomena. Throughout the world, major user
facilities with beams of ever-increasing intensity of both types of radiation
have been constructed or planned in recent years. This has created a need
for neutron and Xray detectors with greater sophistication and higher
counting rate capability....
David Attie
(CEA Saclay)
20/02/2007, 14:50
Contributed Talk
The Time Pro jection Chamber (TPC) for the International Linear Collider
(ILC) will measure about 200 track points with a resolution close to 100 μm.
A Micro Pattern Gas Detector (MPGD) readout TPC may achieve the target
resolution with existing techniques using 1 mm or narrower pads at the
expense of increasing the detector cost and complexity. The new MPGD readout
technique of...
Makoto Kobayashi
(KEK)
20/02/2007, 15:15
Contributed Talk
Time projection chamber (TPC) is considered as a strong candidate for the
central tracker at the future linear collider experiment because of its large
volume coverage and high three-dimensional granularity. Since the
performance of TPC depends on its readout scheme we have conducted a
series of experiments in order to compare the performance of prototype
TPCs equipped with different...
Leszek Ropelewski
(CERN)
20/02/2007, 16:30
Contributed Talk
Since its introduction in 1996 GEM (Gas Electron Multiplier) has attracted a
lot of interest due to many promising features: good position accuracy and
two track resolution, high rate capability, high radiation tolerance and time
stability, large flexibility of the geometrical shapes and readout schemes.
This has led to a wide range of applications from simple tracking and
triggering...
Florian Haas
(Technische Universitat Munchen)
20/02/2007, 16:55
Contributed Talk
For its physics program with a high-intensity hadron beam of 2·10 7
particles/s, the COMPASS experiment at CERN requires tracking of charged
particles scattered by very small angles with respect to the incident beam.
While good resolution in time and space is mandatory, the challenge is
imposed by the high beam intensity, requiring radiation hard detectors
which add very little...
Denis Pavlyuchenko
(Budker Inst. Novosibirsk)
20/02/2007, 17:20
Contributed Talk
The performances of two-phase Ar and Xe avalanche detectors were studied,
aiming at their potential application in low-background experiments, such as
those of coherent neutrino-nucleus scattering and dark matter search. The
two-phase avalanche detector had a liquid Ar or Xe layer and a triple-GEM
multiplier operated in the saturated vapour above the liquid phase. The suc-
cessful...
Jan Timmermans
(NIKHEF Amsterdam)
20/02/2007, 17:45
Contributed Talk
In recent years the detection of minimum ionising particles in a gaseous
detector by means of a CMOS pixel readout circuit as direct anode, has been
demonstrated. Sofar the used pixel circuitry provided only a 2-dimensional
projection of the position of the primary ionisation clusters. In the newly
developed TimePix chip, based on the earlier used Medipix2 chip, each pixel
also has...
Vladimir Peskov
(KTH Stockholm)
20/02/2007, 18:10
Contributed Talk
Recently developed micropattern gaseous detectors open new avenues in the
detectors technology. However, due to the fine structure of their electrodes,
these detectors are quite fragile and can be damaged by sparks. We have
developed and successfully tested several prototypes of micropattern gaseous
detectors based on a new design in which the cathode or the anode (in some
case both...
Paula Collins
(CERN)
21/02/2007, 09:00
Invited Talk
As the final touches are being put to the LHC detectors, the race is on to per-
fect technologies which could be used to confront the challenges of the ultra
high luminosities at the SLHC and ILC. The achievements of the current de-
tectors must be extended, with ever more hostile radiation environments, ever
shorter signal shaping times and ever increasing emphasis on the highest...
Aaron Dominguez
(University of Nebraska)
21/02/2007, 09:50
Contributed Talk
The Compact Muon Solenoid Experiment (CMS) will start taking data at the
Large Hadron Collider (LHC) in 2007 with the largest silicon tracking
detector ever built. As a key component of this tracker, the collaboration is
building a silicon pixel detector consisting of two forward/backward disks on
each side of the interaction region and three barrel layers. The pixel detector
will be...
Romualdo Santoro
(INFN+Uni Bari)
21/02/2007, 10:15
Contributed Talk
The Silicon Pixel Detector (SPD) forms the two innermost layers of the
ALICE Inner Tracking System (ITS). The SPD consists of 120 detector
modules (halfstaves) on two barrel layers at average radii of 3.9 cm and 7.6
cm, respectively. Each half-stave contains two ladders, each ladder
consisting of a 200 μm thick p +n silicon sensor matrix flip-chip bonded to
five 150 μm thick...
Mauro Donega
(Universite de Geneve)
21/02/2007, 11:30
Contributed Talk
The ATLAS Pixel Detector is an 80 M channels silicon tracking system
designed to detect charged tracks and secondary vertices with very high
precision. To verify that the integrated assembly will perform as expected
subsequent to installation into the experimental area, a fraction (10%) of
the detector and the requisite ancillary services has been assembled and
operated in a...
Olaf Steinkamp
(Uni Zurich)
21/02/2007, 11:55
Contributed Talk
The LHCb Silicon Tracker covers a sensitive surface of about 14 m 2 with
silicon micro-strip detectors. It uses up to 132 cm long detector modules
with readout strips of up to 38 cm in length and up to 57 cm long Kapton
interconnects in between sensors and readout chips. This results in large
load capacitances for the front-end amplifiers and an extensive R&D
programme was carried...
Gian Mario Bilei
(INFN Perugia)
21/02/2007, 12:20
Contributed Talk
With a total area of more than 200 square meters and about 15,000 silicon
modules, the Tracker of the CMS experiment at the Large Hadron Collider
will be the largest silicon strip detector ever built. Together with a Pixel
detection system the CMS Silicon Strip Tracker will determine the charged
particle momenta and will play a determinant role in lepton reconstruction
and heavy...
Guido Heinrich Dirkes
(Institut fuer Experimentelle Kernphysik)
21/02/2007, 14:00
Contributed Talk
In the last year the CMS experiment has constructed and integrated the largest
ever build full silicon strip tracker. Therefore the CMS tracker collaboration
set up a unique scheme of quality control to ensure the necessary high quality
of all of the 15,148 modules and their super structures. The applied scheme
of quality control revealed several problems, which escaped the initial R&D...
Ewa Stanecka
(Henryk Niewodniczanski Institute of Nuclear Physics PAN)
21/02/2007, 14:25
Contributed Talk
The Semiconductor Tracker(SCT) of the ATLAS detector enters the last
phase of installation and commissioning at CERN. Prior to inserting into
ATLAS, the barrel part of the SCT has been integrated with the Transition
Radiation Tracker (TRT) barrel and tested with cosmic rays. A sector of 468
SCT modules has been powered and read simultaneously with TRT modules
in physics mode. In...
Alexandre Pronko
(FNAL)
21/02/2007, 14:50
Contributed Talk
The CDF silicon vertex detector is one of the largest operating silicon
detectors in particle physics. Its silicon sensors have 722,432 channels read
out by 5,456 chips and cover an area of 6 m 2. The detector is used for
precision tracking and in the hardware trigger for events with a displaced
vertex. It is very important for a success of the CDF physics program. The
silicon...
Michelangelo Ambrosio
(INFN Napoli)
21/02/2007, 15:15
Contributed Talk
Carbon Nanotubes are one-dimensional structures with diameters ranging
between 2 and 100 nm and lengths up to hundreds of microns. They are
characterized by a large variety of peculiar characteristics such as a
semiconductive or metallic behaviour, a ballistic electrical conductivity and
enhanced field emission capabilities. Among these characteristics their
sensitivity to the...
Richard Bates
(Glasgow University)
21/02/2007, 16:30
Contributed Talk
The need for ultra-radiation hard semiconductor detectors for the tracker
regions in high energy physics experiments at a future high luminosity
hadron collider like the LHC Upgrade has led to the formation of the CERN
RD50 collaboration. The R&D directions of RD50 follow two paths:
understanding radiation effects, and finding mitigation through the use of
new materials, device...
Simon Eckert
(Universität Freiburg)
21/02/2007, 16:55
Contributed Talk
In view of the projected luminosity upgrade of the LHC, we are studying
novel Silicon detectors in terms of their radiation-hardness to be employed
as tracking detectors at the sLHC. We have tested 3D-detectors of
singletype-column (STC) design, with only n-type columns etched into a p-
type substrate. Rows of the columns are connected together to form strips.
Using ATLAS SCT...
Wojciech Dulinski
(IReS Strasbourg)
21/02/2007, 17:20
Contributed Talk
CMOS sensors are being developed for various position sensitive detectors
requiring high granularity and low material budget, together with relatively
fast read-out and good radiation tolerance as well as low power dissipation. A
review of the charged particle detection performances achieved with sensors
of the MIMOSA series will be provided, emphasizing preliminary test results
of...
Tomoichi Ishiwatari
(Stefan Meyer Institut f. subat. Phys., Wien)
21/02/2007, 17:45
Contributed Talk
Silicon Drift Detectors (SDDs) are X-ray detectors with the outstanding
performance for the measurement of the kaonic atom X-ray lines. The
measurement of the kaonic hydrogen/deuterium X-rays with a high
background suppression is a crucial issue, because of the small X-ray yields
(a few % in kaonic hydrogen and much smaller in kaonic deuterium) and
high background usually...
Toru Tsuboyama
(KEK)
21/02/2007, 18:10
Contributed Talk
The effort to develop a monolithic pixel sensor based on the SOI (silicon
on insulator) CMOS technology is presented. In SOI, MOS transistors are
produced on silicon oxide layer (BOX) above a silicon substrate. A monolithic
pixel detector is realized if we adopt a high-resistivity silicon and p-type and
n-type implantations can be made in the substrate. The charge induced in the...
Andrey GOLUTVIN
(ITEP Moscow)
22/02/2007, 09:00
Invited Talk
Structured granular calorimeters play a central role in all modern collider
experiments. Calorimeter technologies are strongly motivated by both the
physics goals and general concept of particular detector. This paper reviews
the status of the LHC calorimeters which have been successfully constructed
and presently are in the stage of commissioning. The calorimeters planned for
future...
Mohamed Aharrouche
(LAPP-Annecy)
22/02/2007, 09:50
Contributed Talk
The ATLAS liquid argon (LAr) calorimeter system consists of an
electromagnetic barrel calorimeter and two endcaps with electromagnetic,
hadronic and forward calorimeters. The liquid argon sampling technique,
with an accordion geometry was chosen for the barrel electromagnetic
calorimeter (EMB) and adapted to the endcap (EMEC). The hadronic endcap
calorimeter (HEC) is using a...
Marcella Diemoz
(INFN Rom)
22/02/2007, 10:15
Contributed Talk
The Large Hadron Collider will allow the study of pp interactions at a center
of mass energy of 14 TeV. The main physics goals of the CMS experiment
are the discovery of the Higgs boson and the search for new physics
phenomena, in particular the appearance of particles predicted by
Supersymmetric theories. The Electromagnetic Calorimeter of the CMS
experiment is made of 75848 Lead...
Anna Ferrari
(CNAO Milano)
22/02/2007, 11:30
Contributed Talk
The KLOE Pb-scintillating fiber calorimeter, primarily designed as an
electromagnetic calorimeter, showed a superior neutron efficiency in a
measurement performed in the energy range [20,180] MeV at TSL (The
Svedberg Laboratory, Uppsala) presented in a parallel contribution to this
conference. A detailed simulation of the calorimeter - a complex geometrical
structure of 200 layers of...
Vaclav Vrba
(Czech Ac. of Sciences)
22/02/2007, 11:55
Contributed Talk
In 2006, the silicon tungsten calorimeter prototype developed by the
CALICE Collaboration was irradiated by low energy electrons (< 6 GeV) at
DESY and electrons and hadrons (pions and protons) of energies from 6 GeV
to 50 GeV and 80 GeV, respectively, at CERN. Obtained data demonstrate
superb shower patterns, determined mainly by a small Moliere radius of
tungsten and fine...
Lars Schmitt
(GSI Darmstadt)
22/02/2007, 12:20
Contributed Talk
PANDA is a next generation hadron physics detector planned to be operated
at the future Facility for Antiproton and Ion Research (FAIR) at Darmstadt,
Germany. It will be using cooled antiproton beams with an energy between
1.5 GeV and 15 GeV interacting with various internal targets. The
experiment is focusing on hadron spectroscopy, in particular the search for
exotic states in the...
Joachim MNICH
(DESY)
22/02/2007, 14:00
Invited Talk
The International Linear Collider (ILC) is the next large project in high
energy physics and currently being designed in a global effort. The main
scientific goal is to complement the anticipated discoveries at the LHC by
precision measurements at the TeV scale. This has challenging implications
on the ILC detector design and performance requiring unprecedented
precision in...
Marc Buehler
(University of Virginia)
22/02/2007, 14:55
Contributed Talk
The DØ experiment at the Fermilab pp Tevatron collider (Batavia, IL, USA)
has undergone significant upgrades in anticipation of high luminosity
running conditions. As part of the upgrade, the capabilities of the Central
Track Trigger (CTT) to make trigger decisions based on hit patterns in the
Central Fiber Tracker (CFT) have been much improved. We report on the
implementation,...
Xavier Llopart Cudie
(CERN)
22/02/2007, 15:20
Contributed Talk
A novel approach for the readout of a TPC at the future linear collider is to
use a CMOS pixel detector combined with some kind of gas gain grid. A first
test using the photon counting chip, Medipix2, with GEM or Micromegas
demonstrated the feasibility of such an approach. Although this experiment
demonstrated that single electrons could be detected the chip did not
provide...
Giovanni Ambrosi
(INFN Perugia)
22/02/2007, 16:20
Contributed Talk
Eight layers of double sided silicon microstrip sensors embedded in a 0.8 T
magnetic field constitute the core of the AMS-02 apparatus. In each layer,
simultaneous measurements of position and energy loss in silicon are
performed along the particle trajectory. With its high spatial resolution, the
silicon tracker will determine the rigidity (R) and the charge sign of particles
up to...
Henning Gast
(RWTH Aachen)
22/02/2007, 16:45
Contributed Talk
The best measurement of the cosmic ray positron flux available today was
performed by the HEAT balloon experiment more than 10 years ago. Given
the limitations in weight and power consumption for balloon experiments,
a novel approach was needed to design a detector which could increase the
existing data by more than a factor of 100.
Using silicon photomultipliers for the readout of a...
Nahee Park
(Ewha University)
22/02/2007, 17:10
Contributed Talk
The Cosmic Ray Energetics And Mass (CREAM) balloon-borne experiment is
designed for direct measurement of high-energy cosmic-ray particles. The
science goal is to measure the single-element fluxes of all cosmic-ray nuclei
from hydrogen (protons) to iron with energies up to the ”knee”, or spectral
index change, near 10 15 eV observed in the all-particle spectrum. A dual
layer Silicon...
Ronaldo Bellazzini
(INFN Pisa)
22/02/2007, 17:35
Contributed Talk
We report on a UV photo-detector with single electron sensitivity and excel-
lent imaging capabilities. It is based on a semitransparent CsI photocathode
followed by a Gas Electron Multiplier (GEM) foil and by a large area, cus-
tom, analog, VLSI ASIC. The avalanche charge produced in a GEM hole
is extracted and measured by the CMOS chip that is at the same time the
pixelized charge...
Kaori Hattori
(Kyoto University)
22/02/2007, 18:00
Contributed Talk
Following the successful astronomical observation by COMPTEL onboard
GRO, a Compton telescope with higher performance is required. With COMP-
TEL a direction of a recoil electron was not measured, so an origin of the
incident photon could only be reconstructed to a cone. Measuring the direc-
tion of recoil electron reduces the Compton cone to a segment of the cone,
and realizes the...
Peter Krizan
(Univ. Ljubljana)
23/02/2007, 09:00
Invited Talk
The paper will review recent progress in particle identification methods. After
a survey of motivations and requirements for particle identification in various
experimental environments, the main emphasis will be on the development of
new ring imaging Cerenkov counters. A number of new techniques has emerged
recently, from upgrades of existing devices to a novel focusing radiator...
Franck Martin
(University of Pennsylvania)
23/02/2007, 09:55
Contributed Talk
The ATLAS experiment at LHC is now approaching the end of the
construction phase. In this presentation, I will focus on the ATLAS-TRT
(Transition Radiation Tracker) assembly and its installation in the ATLAS
cavern, which covers the period of the last two years. After an overview of
the TRT detector, I will show the various tests performed during the
”stacking” of the TRT wheels....
Mariana Petris
(IFIN-HH Bukarest)
23/02/2007, 10:20
Contributed Talk
A new Transition Radiation Detector (TRD) prototype with a high granularity
for a high counting rate environment, required by the CBM experiment, at
the future experimental facility FAIR - GSI Darmstadt, was designed and
built. A solution for such a detector is a multiwire proportional chamber with
a minimized drift region, reduced to a cathode - readout pad plane distance
of 6 mm...
Gabriel Vidal-Sitjes
(Imperial College, London)
23/02/2007, 11:20
Contributed Talk
The LHCb experiment has been optimized for high precision studies of CP
violation and other rare decay phenomena in B-meson decays at the CERN
LHC. Particle Identification (PID) in the momentum range from a few to
∼100 GeV/c is essential. Hadrons in this momentum range are identified by
means of two Ring Imaging Cherenkov (RICH) detectors using Silica Aerogel,
C4F10 and CF4 gas...
Abraham Antonio Gallas Torreira
(Istituto Nazionale di Fisica Nucleare (INFN))
23/02/2007, 11:45
Contributed Talk
The construction and installation phases of the High Momentum Particle
IDentification detector (HMPID) of the ALICE experiment were completed by
summer 2006. The HMPID has been designed to identify charged pions and
kaons in the range 1 < pt < 3 GeV/c and protons in the range 2 < pt < 5
GeV/c. The total active area of this detector is 11 m 2 and represents the
largest scale...
Fulvio Tessarotto
(INFN Triest)
23/02/2007, 12:10
Contributed Talk
A fast photon detection system has been designed and built for the upgrade
of COMPASS RICH-1, a large size gaseous RICH in use at the COMPASS
Experiment at CERN SPS since 2001 and successfully operated in its
upgraded version during the 2006 run. The aim of the upgrade was to make
RICH-1 adequate for high rate operation: the photon detectors of the central
region have been replaced...
Helmuth Spieler
(LBNL)
23/02/2007, 14:00
Invited Talk
The past two decades have provided a wealth of experience in highly integrated
front-end electronics for high energy physics. The SLHC and ILC, however,
pose formidable challenges, not so much to technology, but to optimum utiliza-
tion of existing technology. The increased radiation load at the SLHC drives
detectors to higher segmentation, which exacerbates the problems of reducing...
Ichiro Adachi
(KEK)
23/02/2007, 14:55
Contributed Talk
Proximity focusing RICH based on silica aerogel Cherenkov radiator has been
developed for new particle identification device in the Belle detector upgrade.
To further improve detector performance, new concept for Cherenkov ring
imaging has been introduced, where multiple aerogel layers with different
indices are accumulated to increase detected photoelectrons without making
a signle...
Jerry Va'vra
(SLAC)
23/02/2007, 15:55
Contributed Talk
Benefiting form from the recent introduction of new fast vacuum-based pho-
ton detectors with a transit time distribution of σ_TTS ∼ 30-150ps, we are
developing novel RICH detector capable of correcting the chromatic error by
timing, attempted the first time ever on such a scale; we are also developing
a novel TOF detector concept. We have built and successfully tested a novel...
Sergey A. Kononov
(Budker Inst. Novosibirsk)
23/02/2007, 16:20
Contributed Talk
The work on aerogel Cherenkov counters was started in Novosibirsk in 1986.
Our group produces silica aerogels with refractive indices of 1.006–1.13.
Largest block dimensions achieved for n=1.03 are 200 × 200 × 50 mm^3.
Optical transparency of Novosibirsk aerogel is one of the best in the world. The
particle identification system for the KEDR detector based on the ASHIPH coun-
ters...
Ryu Sawada
(Uni Tokyo)
23/02/2007, 16:45
Contributed Talk
MEG experiment is a rare muon decay search experiment. A muon rare
decay μ + → e + γ violates lepton flavor conservation. The standard model
predicts too small branching ratio to observe, however many new theories
predict observable branching ratio. MEG experiment has sensitivity to the
background ratio better than 10 −13 which is two orders of magnitude
better than current...
Mr
Erik Vallazza
(INFN Triest)
24/02/2007, 09:00
Contributed Talk
During 2006 the SYRMEP (Synchrotron Radiation for Medical Physics)
collaboration performed worldwide unique clinical mammographic
examinations using X-rays generated by one of the bending magnets at the
synchrotron radiation facility Elettra (Trieste, Italy). While these
examinations have been performed with traditional screen-film systems,
recently a major effort has been pursued in...
Sara Vecchio
(INFN Pisa)
24/02/2007, 09:25
Contributed Talk
We have developed a tomograph for single photon emission imaging (SPECT) of
the breast for the detection of small size tumors. The patient is prone with
a pendulus breast. The SPECT is mounted on a ring that is rotating around
the breast. The breast will be imaged by two opposing detector heads of
approximately 5x15 cm^2 each, with a field of view about 13 cm wide. Each
head is made up of...
Giacomo Bartesaghi
(INFN Mailand)
24/02/2007, 09:50
Contributed Talk
Radiotherapy, together with chemiotherapy and surgery, is one of the main
methods applied in the fight against cancer; in order to increase the chances
of a successful radiotherapy treatment the dose delivery to the tumour
areas and the surrounding normal tissues has to be computed with high
accuracy. Standard dosimeters are accurate but too small (ionization
chambers and diodes) or...
Valentina Conti
(INFN Mailand)
24/02/2007, 10:15
Contributed Talk
Boron Neutron Capture Therapy (BNCT) is a therapeutic technique exploiting
the release of dose inside the tumour cell after a fission of a 10B nucleus
following the capture of a thermal neutron. BNCT could be the treatment for
extended tumours (liver, stomach, lung), radio-resistant ones (melanoma)
or tumours surrounded by vital organs (brain). The application of BNCT
requires a high...
Mr
Andrew Blue
(Uni Glasgow)
24/02/2007, 11:10
Contributed Talk
A monolithic active pixel sensor, Vanilla, with 512x512 pixels (25μm square)
has been fully characterised for the first time. Using PTC (Photon Transfer
Curve) measurements allowed for the calculation of the read noise, shot
noise, full well capacity and camera gain constant. Spectral response
measurements detailed the QE of the detector through the UV and visible
region....
Tsutomu Nagayoshi
(Waseda University, Tokyo)
24/02/2007, 11:35
Contributed Talk
Astronauts have to receive the risk of radiation exposure in space. The
radiation dose rate is about a hundred times as much as that on the ground.
Hence, precise radiation dosimetry in space is necessary to control the
health of astronauts. We started to develop a new dosimeter named
“Position Sensitive Tissue Equivalent Proportional Counter (PS-TEPC)” to
measure Linear Energy...
Maria Cristina Montesi
(INFN Napoli)
24/02/2007, 12:00
Contributed Talk
In the framework of a national project for new imaging techniques for breast
cancer diagnosis we are implementing an X-ray Computed Tomography (CT)
system, with a design resolution of 1 mm, on the gantry of a dedicated
scintillator based single photon emission tomography (SPECT) system for
breast Tc-99m imaging, to allow for anatomical co-registration of the
radionuclide tomographic...
Gabriela Ribeiro Pereira
(Nucl. Instrum. Lab., Rio de Janeiro)
24/02/2007, 12:25
Contributed Talk
An X-ray Transmission Microtomography (CT) system combined with an Xray
Fluorescence Microtomography (XRFCT) system was implemented in the
Brazilian Synchrotron Light Source (LNLS), Campinas, Brazil. The main of
this work is to determine the elemental and absorption distribution map in
breast tissue samples. The experiments were performed at the X-Ray
Fluorescence beamline (D09B-XRF)...
Yuri Tikhonov
(Budker INP)
24/02/2007, 12:50
Contributed Talk
Last years Budker INP has been developing digital scanning low-dose X-ray
systems for medical radiography based on ionization chambers. These
systems provide dose ∼ 5 μSv for chest inspection (lowest dose in the
world). The spatial resolution is 2 p.l./mm, dynamic range is ∼ 1000. About
300 such systems have been produced by industry and are used in Russian
hospitals. Similar method...
Mirco Andreotti
(INFN Ferrara)
Poster (Session A)
The new barrel Instrumented Flux Return (IFR) of BABAR detector will be
reported here. Limited Stramer Tubes (LSTs) have been chosen to replace
the existing RPCs as active elements of the barrel IFR. The layout of the new
detector will be discussed: in particular, a cell bigger than the standard one
has been used to improve efficiency and reliability. The extruded profile is
coated...
Gregorio Roper
(RWTH Aachen)
Poster (Session A)
Using thin scintillating fibers with Silicon Photo Multiplier (SiPM) readout a
modular high resolution charged particle tracking detector has been
developed. The fiber modules consist of eight layers of 128 round multiclad
Bicron BCF-20 scintillating fibers of 0.250 mm diameter. They are
mechanically stabilized by a carbon fiber airex structure (2 x 0.1 mm CF
skins, 5 mm airex foam)....
Alexei Lebedev
(Brookhaven National Lab)
Poster (Session A)
A new method utilizing diffraction of UV laser beams on annular diaphragms
provides very narrow laser beams with full diameter 100-400 mm,
divergence ∼0.05 mrad and effective length up to 10 meters, which exceeds
existing methods with focusing optics. The characteristics of laser beams and
linear ionization created with different diaphragm sizes are present. Optics
schemes proposed...
Esther Ferrer Ribas
(DAPNIA, Saclay)
Poster (Session A)
A low background Micromegas detector has been operating on the CAST
experiment at CERN for the search of solar axions during the first phase of
the experiment. A very high level of background rejection (4 × 10 −5
counts keV −1cm−2s−1) was achieved due to its good spatial and energy
resolution as well as the low radioactivity materials used in the construction
of the detector. For the...
Wooyoung Kim
(Kyungpook National University)
Poster (Session B)
Jefferson Lab aims at further study of quark-gluon structure of hadrons. The
US Department of Energy has placed Jlab on path toward the major upgrade
of the Continious Electron Beam Accelerator Facility. DOE has recently
announced its decision to meet Jlab’s proposal to double the acccelerator
energy from 6 to 12 GeV, to add a fourth experimental hall, and to upgrade
the existing...
Antonio Paolozzi
(INFN Frascati + Uni Sapienza Roma)
Poster (Session A)
The use of fiber optic sensors for performing structural health monitoring by
measuring strains is becoming more and more frequent. In fact those
sensors offer several advantages over conventional sensors. One of those is
the immunity from electromagnetic interferences. This aspect is particularly
attractive in the environmental conditions of contemporary High Energy
Physics...
Rudolf Fruhwirth
(Institut fuer Hochenergiephysik (HEPHY))
Poster (Session B)
Detector concepts are in general optimized by Monte Carlo simulation.
However, programs for simulation and reconstruction of detector related
data from track measurements are nowadays of great complexity. The
detector toy program is a simple MATLAB tool which allows the fast
optimization of the position and precision of track sensitive detector modules
and their material budget. It...
Oliver Kortner
(MPI Munich)
Poster (Session B)
The ATLAS muon spectrometer consists of three layers of precision drift-tube
chambers in an air-core toroid magnet system with an average field of 0.4 T.
The muon momenta are determined with high accuracy from the measure-
ment of the sagitta of the muon tracks in the three chamber layers. In
order
to achieve the required momentum resolution of the muon spectrometer of
bet-
ter...
Dmitry Ilyin
(St. Petersburg Nucl. Phys. Inst., Gatchina)
Poster (Session A)
Some time ago it was demonstrated that the method of Nuclear Reaction
Analysis (NRA) is very effective for investigation of the aging effects in the
gas-filled detectors operated under high accumulated dose. The most
important plasmachemical reactions for the gas mixtures (Ar/CO2/CF4 and
Xe/CO2/CF4) produce many different active species including oxygen and
fluorine. For the...
Michael Eads
(University of Nebraska)
Poster (Session A)
The CMS detector is a multipurpose collider detector that is being
constructed at the Large Hadron Collider and is scheduled to begin taking
data in 2007. At the heart of the all-silicon tracking system is a silicon pixel
detector divided into a cylindrical barrel and forward disks. The forward pixel
system is currently being assembled and is scheduled for insertion into CMS
in 2008....
Antonio Policicchio
(Universita degli Studi della Calabria)
Poster (Session B)
Many of the physics processes of interest at Large Hadron Collider (LHC) will
involve muon production in the final state. The Monitored Drift Tube (MDT)
chambers, the precision tracking elements of the ATLAS muon
spectrometer, are the main tools for the muon identification and
measurement. They will operate in the harsh background environment
imposed by the LHC conditions, mainly due...
Irena Dolenc
(Jozef Stefan Inst. Ljubljana)
Poster (Session B)
In order to monitor beam conditions and detect signs of beam instabilities
which could cause damage to their detectors, LHC experiments have decided
to develop their own systems in addition to those provided by the
accelerator. ATLAS Beam Conditions Monitor (BCM) will consist of eight
detector modules with diamond pad sensors, placed symmetrically around
the interaction point along...
Inaya Correa Barbosa Lima
(Nucl. Instrum. Lab., Rio de Janeiro)
Poster (Session B)
The osteoporosis is a pathology that assails the bones, defined as systemic
skeletal disease characterized by a decrease in the bone mass and
deterioration of the microarquitecture with the increase of the bone fragility
and more susceptibly to fractures. The ovariectomized process in female rats
has been used frequently as animal model of experimental osteoporosis,
because it...
Giovanni F. Tassielli
(INFN Lecce)
Poster (Session A)
To optimize resolutions, both spatial and dE/dx, in a large gas drift chamber
or in a system of stacked drift tubes, the gas mixture used is such that the
ionization clusters are densely created along the charged track, thus
resulting in a signal well defined in time and dominated in amplitude by
Landau fluctuations only. Spatial resolution is limited by the primary
ionization...
Leonello Servoli
(INFN Perugia)
Poster (Session B)
An active pixel sensor has been developed using standard CMOS technology,
UMC 0.18 micron with no epitaxial layer, with pixel size 4.4 x 4.4 micron, in
the framework of the RAPS project. In this work we will report on the results
obtained using several types of ionizing radiation sources (Laser, X-ray
tubes, α, β and γ) to test extensively the device. Some of the main results...
Gianluca Traversi
(Universita Bergamo)
Poster (Session B)
This paper is intended to discuss the features of a novel kind of monolithic
active pixel sensors (MAPS) in deep submicron CMOS technology (130 nm
minimum feature size) for use in charged particle trackers and vertex
detectors. As compared to conventional MAPS with 3-transistor readout
scheme, the design approach proposed here, where a deep N-well (DNW) is
used as the collecting...
Oleg A. Grachov
(University of Kansas, Lawrence)
Poster (Session A)
Two identical Zero Degree Calorimeters (ZDCs), designed to measure
neutrons and very forward photons in the heavy-ion and low luminosity pp
collisions at the LHC, are located at ±140 m from the CMS interaction point.
Each ZDC consist of two independent compartments: the electromagnetic
(EM) and hadronic section (HAD). The calorimeter sections are sampling
calorimeters, and core of...
Svetozar Kapusta
(Comenius University)
Poster (Session A)
The Alice Detector Controls system is in charge of configuration, control and
monitoring of more than 100 subsystems, consisting of a total numbers of
∼100 000 channels. All controls tasks are performed by a big distributed
system based on PVSS-II. A big emphasis was put into providing software
abstraction layers which hide the complexity and variety of the implemented
hardware...
Thomas Asch
(FZ Karlsruhe)
Poster (Session B)
Ultra high energy cosmic rays (UHECRs) generate in the atmosphere
secondary particles, in particular a high number of e + e − pairs. The
geosynchrotron theory predicts pulsed, coherent radio emission from the
deflection of these light charged particles in the earth’s magnetic field.
Within the framework of LOPES (Lofar PrototypE Station), 30 short dipole
antennas (LOPES30) are...
Stefan Koenig
(Uni Freiburg)
Poster (Session B)
The Monitored Drift Tube chambers (MDT) of the ATLAS muon system have
been constructed and partly installed in the ATLAS cavern at CERN with the
required mechanical precision and spatial resolution. The main challenge at
LHC will be the high dose of radiation. Therefore it is essential to avoid any
pollution, since it can cause severe ageing effects in a short period of time.
Despite...
Alessandro Gabrielli
(INFN Bologna)
Poster (Session B)
The SLIM5 collaboration has already designed fabricated and tested two
prototypes of CMOS MAPS sensors. The new key feature of these devices
with respect to previously developed MAPS sensors is to include at the pixel
level a full signal processing chain. By exploiting the triple well option offered
in 130nm CMOS technology, the pixels have been designed with a signal
processing...
Kunihiro Fujita
(Osaka University)
Poster (Session A)
We developed position sensitive gas detector with Gas Electron Multiplier
(GEM) for tracking of charged particle. Our physics goal is to study the short
range correlation of the nuclear interaction in the nuclear medium with a
Coherent Pion Production (CPP) experiment. The experiment is performed at
the neutron time of flight facility (NTOF) at RCNP with the 12C(p,
nπ+)12C(ground...
Bernhard Ledermann
(Uni Karlsruhe)
Poster (Session A)
A Time Projection Chamber (TPC) with GEM technology is well-suited for
usage as central tracker at the International Linear Collider (ILC). To study
the high potential of this detector type a small prototype of 25 cm length
was built in Karlsruhe and used in several experimental setups. We present
the results of these measurements and of additional MonteCarlo
simulations. By...
Damir Bosnar
(University of Zagreb)
Poster (Session B)
Positron annihilation (PA) techniques became, by now, routinely used
nuclear techniques with applications which range from structural
investigations of materials to biological samples and medical applications in
PET. As at present, both PA spectroscopy and PET could profit from an
improvement in fast coincidence technique, it was investigated how far
could a fully digitized positron...
Alexandre Popov
(Budker Inst. Novosibirsk)
Poster (Session A)
The design and performance of the Drift Chamber for the CMD-3 detector is
described. The detector will be installed on new electron-positron collider
VEPP- 2000 with center of mass energy from 0.6 to 2 GeV at Budker
Institute of Nuclear Physics in Novosibirsk.
Ajay Srivastava
(Unknown)
Poster (Session B)
For the luminosity upgrade of the LHC CERN to 1035 cm −2 s−1 (Super-
LHC or S-LHC), the presently available Si detector technology may not be
able to match the extreme requirements with respect to the necessary
radiation tolerance. The innermost tracker detectors will have to face particle
fluences (jeq.) above 1016 cm −2, (equivalent to 1 MeV neutron dose) after
5 years of operation...
Markus Friedl
(HEPHY Vienna)
Poster (Session B)
The Belle experiment at KEK (Tsukuba, Japan) studies CP
violation in B meson decays by measuring the sides and
angles of the unitarity triangle. Some of these measurements
require the reconstruction of the vertices of the two
decaying B mesons in an Y(4S) event, making the Silicon
Vertex Detector (SVD) a critical device for the experiment.
The initial SVD1 was in operation from 1999...
Oana Boeriu
(Department of Physics)
Poster (Session A)
The cathode strip chamber (CSC) system is one of the three types of muon
detectors used in the Compact Muon Solenoid (CMS) experiment at the
Large Hadron Collider (LHC). It consists of 468 chambers, with a total of
∼218k strips and ∼183k wires, divided into two endcaps. The chambers have
excellent signal-to-noise performance and they operate in a large non-
uniform magnetic field...
Jochen Markert
(Goethe Universitaet Frankfurt)
Poster (Session B)
The HADES tracking system consists of 24 trapezoidal, planar 6-layered
lowmass multi-wire drift chambers (MDC) symmetrically arranged in six
sectors, forming four tracking planes (I-IV) of increasing size. The analog
part of the readout of the drift cell signals is done via ASD8-B (Analog
Shaper Discriminator ) chips for differential amplification, shaping and
discrimination. The...
Fuyuki Tokanai
(Yamagata University)
Poster (Session A)
We report on the basic characteristics of a capillary plate (CP) gas detector
filled with CF4 gas mixtures of Ne/Ar as a gas scintillation proportional
counter. Both the charge and light signal were investigated. Gas gains of up
to 10 4 can be achieved with the gas mixtures. The energy resolutions of
the charge and light signals were 19.6% and 23.5% for 5.9 keV X-rays,
respectively,...
Nils Pickert
(Uni Erlangen)
Poster (Session B)
The Hermes collaboration installed a new Recoil Detector surrounding the
internal gas target to upgrade the existing spectrometer. It will allow the
detection and identification of low energy protons at large angles originating
from hard exclusive processes. These measurements will provide access to
generalised parton distributions. This Recoil Detector consists of three...
Lucia Sarchiapone
(Unknown)
Poster (Session B)
One of the crucial elements in terms of machine protection for CERN’s Large
Hadron Collider (LHC) is its beam loss monitoring (BLM) system. Online loss
measurements must prevent the superconducting magnets from quenching
and protect the machine components from damages due to unforeseen
critical beam losses. In order to ensure the BLM’s design quality, in the final
design phase of the...
Adriano Di Giovanni
(Gran Sasso)
Poster (Session A)
OPERA is an underground neutrino oscillation experiment to search the ντ
appearence from a pure νμ beam produced in the CNGS. A large VETO
system, consisting of two 10.0 × 9.2 m 2 planes made of electronic
detectors, is foreseen to flag the events due to the neutrino interactions
with the rock surrounding the OPERA detector. The VETO is realized using
Glass Resistive Plate Chamber...
Kikuo Kimura
(Nagasaki Inst. of Applied Science)
Poster (Session B)
A high-rate particle identification device for high-energy heavy ions has been
developed which utilizes a stacked configuration of grid-less parallel plate gas
ionization chamber with thin anode-cathode gaps. The high-rate capability of
this chamber was realized by adopting bipolar shaping of anode signals and
by making the anode- cathode gaps thin. Z-resolutions of 0.2-0.3 were...
Simone Ceresa
(Unknown)
Poster (Session A)
The two innermost layers of the ALICE detector are formed by hybrid silicon
pixel detectors. At radii of 3.6 cm and 7.6 cm the ∼106 pixel cells of the
ALICE Silicon Pixel Detector (SPD) will provide high granularity tracking
information close to the interaction point. The installation of the SPD in the
ALICE experiment is foreseen for January 2007. The integration of the SPD
is...
G.S. Panayiotakis
(Dep.f.Med.Physics, University of Patras)
Poster (Session B)
LSO:Ce, LYSO:Ce and GSO:Ce single crystal scintillator light emission
characteristics were studied in low γ-ray energy range (Tc-99m source) used
in nuclear medical imaging. The absolute luminescence efficiency and the
optical emission spectrum of the three scintillators was measured, under γ-
ray excitation using an integration sphere coupled to a photomultiplier and a
spectrometer...
Stanislav Potashev
(Inst. of Nucl. Research, Moscow)
Poster (Session B)
A system of three ion-chambers with low threshold energy, giving new
possibilities in proton beam monitoring and analyzing, is considered. The
system includes a new double-gap chamber with the gap of 1 mm, with
polyimid films of 3 μm thickness and with the sensitive area 113 cm 2 and
two double-gap ionchambers, each with the gap of 2 mm. Ionization losses
in each of six sensitive air...
Peter Kodys
(Charles University Praha)
Poster (Session B)
A setup for testing silicon position sensitive detectors using focused pulsed
laser beam has been built. Laser focuser is positioned at stages allowing 3D
motion and rotation around 2 axes. Automated procedures for positioning,
focusing, and alignment have been developed. In addition to standard laser
measurements (response, timing, spatial resolution), absolute charge
deposition and...
Beniamino DI GIROLAMO
(CERN)
Poster (Session B)
This contribution will report about the ATLAS Luminosity measurements
using a Scintillating Fibre Detector in a Roman Pot system. A description of
the Roman Pot system will be made together with a description of the
development, construction and operation of ALFA (Absolute Luminosity For
ATLAS) scintillating fibre detector prototypes. The ATLAS Roman Pots will be
located at 240 m...
Helmut Frais-Kölbl
(FH Wiener Neustadt)
Poster (Session B)
Future medical ion beam applications for cancer therapy will require
advanced beam diagnostics equipment. For a precise analysis of beam
parameters a time resolution in the range of microseconds to nanoseconds
is desirable. A prototype of an advanced beam monitor was developed by the
University of Applied Sciences Wiener Neustadt and its research subsidiary
Fotec in co-operation with...
Alexey Mykhailenko
(Kiev Inst. of Nucl. Research)
Poster (Session B)
The Metal Microstrip Detector (MMD) is presented. The MMD is designed and
used for on-line profile monitoring of synchrotron radiation beams. The
results obtained at HASYLAB (DESY) with 20 keV synchrotron radiation are
discussed. The principle of its operation is based on the Secondary Electron
Emission (SEE): X-ray photons (or fast charged particles) hitting a narrow
(20-35 μm)...
Thomas Zerguerras
(Uni Paris-Sud)
Poster (Session A)
Micropattern Gaseous Detectors (MPGD), like Micromegas or GEM, are used
or foreseen in particle physics experiments for which a very good spatial
resolution is required. We have developed an experimental method to
separate the contribution of transverse diffusion and the multiplication
process by varying the number of primary electrons generated by a point-
like source. A pulsed...
Hiroyuki Takahashi
(Uni Tokyo)
Poster (Session A)
We are developing a multi-grid-type MSGC with the global-local-grouping
(GLG) readout method for neutron scattering applications. In this method,
avalanche charge is divided into two ways. A half charge is used for
indicating the coarse position of the incident radiation. And the other half
charge is used for locating the detailed position of the incident radiation. In
this way, the...
Kensuke Homma
(Uni Hiroshima)
Poster (Session B)
The detection principle of charged particles developed so far is based on the
local inelastic processes such as ionizations and excitations with the energy
consumption above 1eV order. However, if one could utilize more
macroscopic processes such as polarizations in an electro-optical(EO) crystal
for the electric field sensing, the necessary energy consumption is expected
to be well...
Pierluigi Catastini
(INFN Pisa)
Poster (Session B)
The Silicon Vertex Trigger (SVT) provides the CDF experiment with a
powerful tool for fast and precise track finding and fitting at trigger level. The
system enhances the experiment reach on B-physics and large PT -physics
coupled to b quarks. We will review the design and the performance of the
SVT with particular attention to the recent upgrade that improved its
capabilities....
Björn Seitz
(Uni Glasgow)
Poster (Session B)
The PANDA experiment at the planned FAIR facility at GSI, Darmstadt aims
at measuring hadronic final states with unprecedented precision and
luminosity. Superior particle identification of charged and neutral particles
covering the full solid angle and momenta up to 15 GeV/c is mandatory to
fullfill PANDA’s physics aims to search inter alia for exotic charmed mesons
and glueballs....
Shoji Uno
(KEK, Tsukuba)
Poster (Session A)
We constructed a GEM chamber using new GEM foils, which are produced
using a new etching method by an Japanese company. The new method has
two steps (Plasma and Laser) to make holes in a flexible printed circuit
board. Similar effective gas gain was obtained in a triple GEM chamber using
new GEM foils, as compared with the standard CERN GEM. It is possible to
make holes in thicker...
Federico Pilo
(Uni Pisa)
Poster (Session A)
AMS-02 is an astroparticle experiment that will operate on board of the ISS
for a period of about 3 years. The main scientific goals of the experiment are
the search for antimatter and dark matter and the study of gamma rays. In
AMS-02 the Electromagnetic Calorimeter (ECAL) plays a key role for its high
capability to measure e +, e− and gamma spectra and to discriminate...
Jose A. Matias Lopes
(Uni Coimbra)
Poster (Session A)
The photoelectron-collection efficiency from photocathodes in noble gases is
studied. The case of electron emission induced by a Hg lamp in a CsI
photocathode is analyzed. The ratio between the number of transmitted
photoelectrons in the gas media and in vacuum is determined, and results
are presented for He, Ne, Ar, Xe, Kr, and CH4 as a function of the applied
reduced electric field...
Jean-Charles Fontaine
(Institut Universitaire de Technologie de Mulhouse (IUT))
Poster (Session A)
The poster will explain the production of the 292 petals needed to build both
CMS Tracker End Caps (TECs). There will be first a description of the petal
itself integrating many components, the main ones being the silicon
modules. The organisation of the production involving 7 Institutes all over
Europe will then be explained. The assembly and testing of the petals will be
detailed...
Samo Korpar
(Uni Maribor)
Poster (Session B)
A proximity focusing RICH with aerogel radiator has been studied to further
improve the pion-kaon separation in the forward region of the Belle
spectrometer. Such a proximity focusing RICH counter is also a very fast
detector, in particular if a micro-channel plate (MCP) PMT is used as the
photon detector. With its excellent timing properties, the same device could
also serve as a...
Iouri Musienko
(Northeastern University)
Poster (Session A)
Results on the radiation hardness of multipixel Geiger-mode avalanche
photodiodes (G-APDs) are presented. Recently-developed G-APDs from three
manufacturers (Hamamatsu (Japan), CPTA(Russia) and Mikron/
Dubna(Russia)) were exposed to 28 MeV positrons with fluences up to 8 · 10
10 positrons/cm2 at the Paul Scherrer Institute. The effects of this radiation
on many G-APD parameters such...
Bhaskar Mukherjee
(DESY)
Poster (Session B)
In April 2006, the Free Electron Laser (FEL) generating 13 nm laser light
with a high brilliance started its routine operation at DESY. The FEL facility is
named FLASH (Free Electron Laser in Hamburg), driven by a 145 m long, 1
GeV superconducting electron linac. A myriad of state-of-the-art electronic
devices comprised of microelctronic components, which are susceptible
ionising...
John Swain
(Department of Physics - Northeastern University)
Poster (Session A)
The FEU-187 15-stage photomultiplier produced by RIE was tested at PNPI
for its suitability for calorimetry in very forward regions at colliders. At levels
expected in the LHC environment, it is radiation hard, resistant to magnetic
fields, and unaffected by the presence of helium. It has an excellent time
resolution of 58 ps, measured in time of flight measurements with 1.8 Gev/
c...
Wolfgang Waltenberger
(HEPHY VIENNA)
Poster (Session A)
A toolkit is presented that takes a set of reconstructed particle tracks as its
input and produces reconstructed interaction vertices as its output. It deals
both with finding (pattern recognition) and with fitting (statistical
estimation) of the interaction vertices. Its main design goals are ease of use,
high integratability in existing software projects, extensibility, and...
Gianluigi Casse
(Uni Liverpool)
Poster (Session B)
Silicon sensors will probably be the choice for the inner tracker detectors of
the experiments in the anticipated LHC luminosity upgrade (Super LHC,
SLHC). These sensors will have to survive a radiation environment almost
an order of magnitude higher than within the already challenging LHC
trackers. The final cumulated fluence will depend on the integrated
luminosity targeted by the...
David Watts
(Universitat Barcelona)
Poster (Session A)
Previous work on the FGLD (Field Gradient Lattice Detector) involved reading
out 50 strips from the detector using the GP5 chip: a 128-channel charge
sensitive preamplifier with integrated individually programmable trigger. The
work showed that the GP5 was suitable as a front-end electronics, but
demostrated the need to protect the inputs from discharges inherent in the
detector. To...
Andreas Bamberger
(Albert-Ludwigs Universitaet Freiburg)
Poster (Session A)
The combination of Micro-Pattern-Gas-Detectors and highly pixelated
readout provided by the MediPix2 chip and by the recently developed
TimePix chip demonstrates a new approach of the TPC-readout for the ILC.
For the DESY test beam of 5 GeV electrons the results of a triple GEM/
MediPix2 and a triple GEM/TimePix detector with 55μm readout pitch are
presented. Different gases (Ar/CO2,...
Roman Mizuk
(Inst. f. Theor. and Exp. Physics, Moscow)
Poster (Session B)
We propose a muon system for the Super BELLE based on scintillator
counters with wave-length-shifting fibers, read out by metal-resistor silicon
avalance photodiods operating in the Geiger mode (MRS APD) produced by
CPTA (Moscow). We produced 150 scintillator strips and MRS APDs to be
installed in the BELLE environment for the background measurement and
long term stability study....
Rok Pestotnik
(Jozef Stefan Inst. Ljubljana)
Poster (Session A)
A novel photon detector, silicon photomultiplier, whose main advantage over
photomultiplier tubes is the operation in high magnetic field environments,
has been tested in view of measuring Cherenkov photons in a RICH counter.
The results of the measurement of single photo-electron pulse height and
timing distribution, uniformity of the response and photon detector
efficiency will be...
Alexandr E. Obrazovsky
(Budker Inst. Novosibirsk)
Poster (Session B)
The new tracking system of the Spherical Neutral Detector for experiments
at the VEPP-2000 e +e− collider in Novosibirsk is described. The system
consists of 9-layer drift chamber with 24 jet cells and proportional chamber
in a common gas volume. Main system features are its small size and high
density of readout electronics channels. The drift chamber provides at least
4...
Davide Raspino
(Cagliari University and INFN)
Poster (Session B)
Muon triggering and offline muon identification are fundamental
requirements of the LHCb experiment, which will be already taking data at
the start-up of the LHC machine. The identification of muon particles with a
rough momentum measurement (down to 3 GeV/c) in the near-beam area
of the first muon station of about 0.6 m 2 is achieved by a set of 24 triple-
GEM detectors. Due to the...
Mr
Marko Dragicevic
(HEPHY),
Thomas Bergauer
(Institut fuer Hochenergiephysik (HEPHY))
Kenan Sogut
(University of Mersin, Turkey)
Poster (Session A)
The CASTOR calorimeter of the Compact Muon Solenoid (CMS) experiment is
designed to study the very forward, baryon-rich region in heavy ion collisions
at CERN LHC. Together with the Zero Degree Calorimeter (ZDC) it will make
it possible to cover almost all the angular region for the CMS detector.
CASTOR consists of quartz plates in a heavy metal matrix. Cherenkov light
produced in...
Christian Schmidt
(GSI Darmstadt)
Poster (Session A)
The Transition Radiation Detector (TRD) is one of the main detector
elements of the ALICE experiment at LHC. It is intended to serve for
electron identification over the expected large background of pions,
enhancing signal to background e.g. for J/Ψ by a factor of 20. The six layer
concentric detector barrel design additionally serves to enhance the overall
tracking capability of the...
Thomas Kirn
(RWTH Aachen)
Poster (Session A)
The Alpha Magnetic Spectrometer (AMS-02) experiment will be mounted on
the International Space Station (ISS) for three years to perform precision
cosmic particle spectroscopy in space. The search for dark matter candidates
requires a precise e +-spectroscopy in the energy range from 10 GeV up to
300 GeV. Therefore the dominating p-background has to be reduced by a
factor 10 6. This...
Aldo Mozzanica
(INFN Pavia)
Poster (Session B)
The goal of the FAST (Fiber Antiproton Scintillating Tracker) detector is the
measurement of the annihilation cross section of slow antiprotons in
gaseous targets in the ASACUSA beam line at the Antiproton Decelerator
(CERN). The tracker will allow to reconstruct the charged pion tracks to
identify the annihilation vertices. The detector, designed to cover a 50 cm
long 15 cm radius...
Simone Donati
(Uni+INFN Pisa)
Poster (Session B)
The CDF II eXtremely Fast Tracker (XFT) is the trigger processor which
reconstructs charged particle tracks in the transverse plane of the central
tracking chamber. The XFT tracks are also extrapolated to the
electromagnetic calorimeter and muon chambers to generate trigger
electron and muon candidates. The XFT is crucial for the entire CDF II
physics program: it detects high pT...
Federico Ferri
(INFN Sezione di Milano (INFN))
Poster (Session A)
The electromagnetic calorimeter of the CMS experiment at the new CERN
proton Collider (LHC) consisting in about 75000 scintillating PWO crystals, is
at an advanced stage of construction. The use of cosmic rays allows
intercalibration of all the channels before the final installation in CMS. It also
provides an extensive test, essential for the commissioning of the detector.
The data...
Frank Hartmann
(Institut fuer Experimentelle Kernphysik)
Poster (Session A)
Tracker Safety System TSS and Tracker Control System TCS is a two pillar
system, where TSS ensures independently the safety with a large PLC
(Programmable Logical Controller) system, while TCS controls 2000 power
supplies for silicon module low and high voltage power and 100 low voltage
control power supplies. Detector interdependencies of control, low and high
voltages are handled,...
Dimos Sampsonidis
(Aristotle University of Thessaloniki)
Poster (Session B)
The construction of the 112 BIS drift-tube chambers (MDT) for the ATLAS
muon spectrometer is described, with emphasis on the quality assurance/
quality control procedures. The required mechanical precision of 20 μm on
the location of the individual wires has been achieved and maintained during
the entire production period (five years) of the chambers at the University of
Thessaloniki....
Jasu Haerkoenen
(Helsinki Institute of Physics HIP)
Poster (Session B)
The CERN RD39 Collaboration has constructed Transient Current Technique
(TCT) measurement setup, which is capable to operate below liquid nitrogen
temperatures. By analyzing the current transients, it is possible to extract
the full depletion voltage, effective trapping time, electric field distribution
and the sign of the space charge in the silicon bulk. Our results show that
the...
Daniel Greiner
(Univ. Tuebingen)
Poster (Session B)
Multi-detector liquid-scintillator reactor anti-ν experiments can play an
important role on the high precision era of neutrino oscillations parameters.
Multi-detector experiments rely on the relative response comparison across
detectors. Therefore, they need to face a novel concept of detector design
and calibration. Detectors are to be designed such that they are easily
calibrated...
Luca Latronico
(INFN Pisa)
Poster (Session A)
The Gamma-ray Large Area Space Telescope (GLAST) is an international,
multi-agency satellite mission with a vast and ambitious physics program in
gamma-ray astronomy, particle astrophysics and cosmology. The Large Area
Telescope (LAT) is the main instrument onboard GLAST, and is currently
being integrated to the satellite in preparation for the november 2007
launch. The LAT is a...
Bruno Wittmer
(I. Physikalisches Institut (B) - Rheinisch-Westfaelische Technis)
Poster (Session A)
In the CMS Microstrip Tracker the algorithms that are used for the online
track reconstruction, require the alignment of the tracker modules on a level
of better than 100 μm. A Laser Alignment System has been developed that
is able to detect possible movements or deformations of the Tracker
mechanical structure with this level of precision. This system works with
infrared laser beams...
Rustem Dzhelyadin
(State Res.Center of Russian Feder. Inst.f.High Energy Phys. (IFVE))
Poster (Session B)
Calorimeter detectors of the LHCb experiment consisting of Single Particle
Detector (SPD), Pre-Shower Detector (PRS) followed by the ”shashlyk” type
Electromagnetic Calorimeter (ECAL) and the Hadron Calorimeter (HCAL) are
described. The SPD and PRS consist of about 6000 channel scintillating
counters each with long transparent fibers readout on to Multi-anode
photomultipliers. The...
Hajime Nishiguchi
(Uni Tokyo)
Poster (Session B)
We have been developing an innovative spectrometer for the MEG
experiment at the Paul Scherrer Institute (PSI) in Switzerland. This
experiment searches for a lepton flavour violating decay μ + → e+ γ with a
sensitivity of 10 −13 in order to explore the region predicted by
supersymmetric extensions of the standard model. The MEG positron
spectrometer consists of a superconducting...
Panja Luukka
(Helsinki Institute of Physics HIP)
Poster (Session B)
Radiation hardness up to 1×10 16 cm−2 is required in the future HEP
experiments. This is well beyond the radiation tolerance of even the most
advanced semiconductor detectors fabricated by commonly adopted
technologies. The Current Injected Detector (CID) is a concept where the
current is limited by the space charge. The injected carriers will be trapped
by the deep levels. This...
Wojciech Dominik
(Uni Warsaw)
Poster (Session A)
We present a novel type of a Time Projection Chamber in which tracks of
charged particles are recorded by means of optical imaging. Particles of
interest (heavy ions, α particles, protons) are stopped within an active
volume of gas composed of argon and helium with small admixtures of
nitrogen and methane. The primary ionization charges drift to the
amplification stages where...
Giulio Saracino
(Univ. Degli Studi di Napplo Federico)
Poster (Session A)
The P326 experiment at CERN aims to a very rare decay, K + → π +νν,
immersed in a overwhelming K + → μ +ν, K+ → π +π0 (and other decays)
background. This calls for an impressive rejection capability (10 12) in order
to keep a significant signal/background ratio while keeping a good overall
efficiency. One of the key components of the detector is the photon veto
system which should...
Joao F.C.A. Veloso
(Uni Aveiro)
Poster (Session A)
We present a Photon-Assisted Cascaded Electron Multipliers (PACEM) which
has a potential for ion back-flow blocking in gaseous radiation detectors: the
avalanche from a first multiplication stage propagates to the successive one
via its photons, which in turn induce photoelectron emission from a
photocathode deposited on the second multiplier stage; the multiplication
process may...
Gerolf Schlager
(Technische Universitaet Wien)
Poster (Session B)
The ATLAS detector at the Large Hadron Collider (LHC) at CERN uses a
scintillator-iron technique for its hadronic Tile Calorimeter (TileCal). A unique
feature of TileCal is that the scintillating tiles are oriented perpendicular to
the colliding beams and staggered in depth. All three TileCal cylinders were
assembled in the ATLAS experimental cavern and moved to their final
position....
173.
The study of glow curve and high dose electron response of CaF2 as thermoluminescence dosimeter
Leila Shekari
(Yazd University)
Poster (Session A)
In the current study, we changed 2 powder in to pellet. The pellets were
irradiated with 60 CO source. Glow peaks appeared at nearly 100, 170 and
260 oC. More over the pellets were irradiated by 10 mev electrons with high
doses; glow peaks appeared at nearly 170 and 260 oC, but the heights of
peaks differed from each other. By mixing Dy with CaF2 of .5, 1, 1.5, 2, 2.5,
3 mol%,...
Giovanni Bencivenni
(INFN Frascati)
Poster (Session A)
We are developing an ultra-light cylindrical triple-GEM detector as inner
tracker for the upgrade of the KLOE experiment at the DAΦNE Φ factory.
The proposed detector will play a crucial role in the study of the KS rare
decays and the measurement of the neutral kaon interferometry. The main
physics requirements are: moderate detector spatial resolutions, σrφ
Pavlos Ioannou
(University of Athens)
Poster (Session B)
The University of Athens (UoA) was responsible for the wiring of about
30,000 MDTs (Monitored Drift Tubes), which were then used for building the
ATLAS-BIS (Barrel Inner Small) Muon Chambers. These tubes were precision
drift tubes of finished length of 1671.5 mm. The 112 ATLAS-BIS chambers
form part of the inner layer of the Muon Spectrometer and are already
installed in the ATLAS...
Giovanna Puddu
(INFN Cagliari)
Poster (Session A)
The Zero Degree Calorimeters (ZDCs) for the ALICE experiment will estimate
the centrality of the ion-ion collision by measuring the energy carried away
by the non-interacting nucleons (spectators). The spectator protons and
neutrons will be separated from the ion beams by the separator magnets of
the LHC beam optics and respectively detected by the proton (ZP) and the
neutron (ZN)...
Susete Fetal
(Uni Coimbra)
Poster (Session A)
The design and performance of a small TPC fitted with an optical double GEM
readout are presented. A prototype with a volume of 0.5 liter was built and
the energy, position and track angle are determined by charge division of
the signals of the four PMT array. Results obtained using the 241Am source
alpha tracks in a mixture of Ar-5%CF4 are reported. Finally, possible
extensions and...
Lev Shekhtman
(Budker Institute of Nuclear Physics (BINP))
Poster (Session A)
The KEDR tagging system (TS) is designed to study two photon interactions
at the VEPP-4m collider. In order to reject the background from single
Bremsstrahlung (SBS) at the colliding beam at higher energies (above 4GeV
at CM) and improve the resolution of the TS the upgrade of the present
system is being performed. Each station will be equipped with the triple-GEM
detector that can...
Dmitry Ilyin
(St. Petersburg Nucl. Phys. Inst., Gatchina)
Poster (Session A)
Two-dimensional detector of thermal neutrons has been designed and
constructed for neutron diffraction experiments at the St.-Petersburg
Nuclear Physics Institute. Detector is based on MWPC with cathode strip
delay line readout and has sensitive area of 170mm×300mm. In order to
achieve the best physical parameters of detector it was necessary to
optimize an anode signal transmission...
Manuel Lozano
(CNM-IMB Barcelona)
Poster (Session B)
The new super-LHC upgrade will impose severe restrictions in the radiation
hardness of
silicon detectors with maximum foreseen fluence of 10^16 particles/cm^2
in the innermost region.
Microstrip detectors have been fabricated in p-type high resistivity float zone
silicon at CNM microfabrication facilities and have been irradiated at the
TRIGA Mark II reactor in Ljubljana to a...
