Prof.
Paul Nolan
(University of Liverpool)
12/09/2005, 14:00
Invited Talk
Prof.
Jon Saunders
(University of Liverpool Pro Vice Chancellor for Research)
12/09/2005, 14:10
Invited Talk
Mr
Martin O'Brien
(UKAEA Fusion Programme Manager)
12/09/2005, 14:30
Invited Talk
Prof.
Richard Wade
(PPARC Deputy Chief Executive and Director Programmes)
12/09/2005, 15:00
Invited Talk
Dr
Gerhard Lutz
(MPI Semiconductor Laboratory)
12/09/2005, 16:00
Dr
Attilio Andreazza
(ATLAS Pixel Collaboration)
12/09/2005, 16:30
The ATLAS Pixel Detector is the innermost tracking system of the
ATLAS experiment at the Large Hadron Collider.
The performances of the production modules of the ATLAS Pixel
Detector have been studied using data collected with a 180 GeV/c
pion beam at the CERN SPS accelerator.
Several of the modules have been irradiated after assembly and
before the test beam using 24 GeV/c...
Dr
Renato Turchetta
(RAL)
12/09/2005, 16:45
Results are presented on recent studies of Monolithic Active Pixel Sensors
developed for future application in High Energy Physics. The status of the HEPAPS
programme at the Rutherford Appleton Laboratory (RAL) is presented and some recent
results from the UK MAPS collaboration on charged particle detection are discussed.
Dr
Jan Conrad
(PH/EP Dept., CERN)
12/09/2005, 17:00
The silicon pixel detector (SPD) of the ALICE experiment in
preparation at the Large Hadron Collider (LHC) at CERN is designed
to provide the excellent vertex resolution needed for measuring
heavy avour production in heavy ion collisions at very high energies
and high multiplicity. The detector consists of 1200 read out ASICs,
each consisting of 8192 pixels, bump-bonded to 200 _m...
Dr
Lars Reuen
(Bonn University, Germany)
12/09/2005, 17:15
By incorporating a field effect transistor into a fully depleted
sensor substrate the DEPFET sensor combines radiation detection and
amplification allowing for low noise measurements and high spatial
resolution. This makes DEPFET sensors an auspicious technology for
the vertex detector of the planned International Linear Collider
(ILC). The demands on the vertex detector are high,...
Prof.
Bo Cederwall
(Department of Physics, Royal Institute of Technology, Stockholm, Sweden)
13/09/2005, 09:00
High-resolution gamma-ray detectors based on high-purity germanium (HPGe) are one
of the key workhorses of experimental nuclear science.The technical developments of
such detectors have been dramatic in recent years, from the emergence of large-
volume high-granularity electrically segmented HPGe detectors to position
sensitivity using pulse-shape analysis and the novel technique of...
Mr
Konstantinos Kousouris
(Nuclear Physics, NCSR Demokritos)
13/09/2005, 09:30
A micropattern gaseous detector has been designed for the CERN Axion
Search experiment CAST, based on the Micromegas technology. The
twodimensional readout, with XY strip structure, allows for
sufficient spatial sensitivity and the low natural radioactivity
materials used for its construction meet the experiment demands for
low background. The detector is operated with an...
Prof.
Vladimir Peskov
(Leonard de Vinci University, France)
13/09/2005, 09:45
In the last few years several groups and companies tried to develop
mammographic scanners based on GaAs, Si solid -state detectors or
high -pressure Xe gaseous detectors [1-3]. The main advantages of
the scanner system are the simplicity of the design (1D detector)
and the readout electronics and hence a low cost.
We have developed and successfully tested an innovative approach in...
Mr
Michael Schumaker
(University of Guelph)
13/09/2005, 10:00
The TRIUMF-ISAC Gamma-Ray Escape-Suppressed Spectrometer (TIGRESS)
is a new gamma-ray detector array being developed in order to take
advantage of the radioactive ion beams to be delivered by the new
ISAC-II facility at TRIUMPH. When complete, TIGRESS will consist of
twelve large-volume 32-fold segmented HPGe clover detectors, fitted
with 20-fold segmented Compton-suppression...
Dr
Kazuhiro Nakazawa
(Institute of Space and Astronautical Science / Japan Aerospace)
13/09/2005, 10:15
Large area imaging spectrometer with good energy resolution based
on double-sided Si strip detector (DSSD) is a key technology for a
new generation of Gamma-ray astronomy. It is well suited as the
scatterer detector of semiconductor Compton telescopes (SCTs)
working at sub-MeV to MeV band. High energy resolution is of
particular importance because it ensures better angular resolution...
Prof.
Robert Lewis
(Monash University, Australia)
13/09/2005, 11:00
New Techniques for Positron Emission Tomography
Invited Talk
Dr
David Hastings
(Christie Hospital)
13/09/2005, 11:30
New Techniques for Positron Emission Tomography
Contributed Talk
Background. Molecular imaging using an animal PET camera is a
powerful technique for studying the bio-distribution of
radiolabelled tracers and ligands, offering a means for in-vivo
assessment of new drugs and disease related biochemical processes.
The design of such imaging experiments must be guided by knowledge
of the performance characteristics of the PET camera. For example,...
Mr
Reynold Cooper
(University of Liverpool)
13/09/2005, 11:45
New Techniques for Positron Emission Tomography
Contributed Talk
The SmartPET project aims to exploit advances in the sensitivity,
speed, position and energy resolution of HPGe detectors to construct
a small animal Positron Emission Tomography (PET) system.
The small animal scanning system will consist of two planar HPGe
detectors separated by 109mm and housed in a rotating frame allowing
data acquisition over a full 180o range. Each detector...
Dr
Deborah Herbert
(INFN Pisa)
13/09/2005, 12:00
New Techniques for Positron Emission Tomography
Contributed Talk
Positron Emission Tomography (PET) for small animal studies requires
high-resolution gamma cameras with high sensitivity. Traditionally,
inorganic scintillators are used and, in recent times, coupled to
position sensitive PMTs. Such PSPMTs are costly, operated at high
voltage and have a relatively low packing fraction. However, their
advantage, compared to current solid state...
Mr
Alireza Sadrmomtaz
(University of Birmingham)
13/09/2005, 12:15
Novel Photon Detection Systems
Contributed Talk
Over the last 20 years, positron emission tomography (PET) has
developed as the most powerful functional imaging modality in
medicine. Over the same period, the University of Birmingham
Positron Imaging Centre has developed the use of positron emitting
tracers to study flow in engineering systems. Much of this work has
used the technique of positron emission particle tracking...
Prof.
Colin Cunningham
(Director, Technological Development, Royal Obervatory)
13/09/2005, 13:30
Applications in Astronomy and Astrophysics
Invited Talk
The future requirements for Astronomy and Astrophysics sensor development covering
the sub-mm to X-ray range will be discussed.
Dr
Johannes Treis
(MPI Munich)
13/09/2005, 14:00
Applications in Astronomy and Astrophysics
Contributed Talk
Two dimensional back-illuminated (500 µm sensitive thickness) X-ray
pixel detectors with pixel sizes from 36 µm, 51µm, 75 µm to 150 µm
have been developed for applications in X-ray astronomy (0.1 keV to
20keV) and for wave front sensing in adaptive optics systems up to 1
µm wavelength in the NIR. In both applications the environmental
conditions are such that operation at ``warm...
Mr
Derek Ives
(UK Astronomy Technology Centre, Edinburgh)
13/09/2005, 14:15
Applications in Astronomy and Astrophysics
Contributed Talk
The technology of Infrared detectors has made significant advances
over the last decade evolving from their small size and number of
pixels to the present large format 2k x 2k pixel devices. These
large format near infrared detectors (1 – 2.5µm) are now routinely
available to the astronomical community and are based on HgCdTe
grown by either an LPE or MBE process on silicon or CdZnTe...
Mr
Hironobu Nishimura
(Kyoto University, Japan)
13/09/2005, 14:30
Applications in Astronomy and Astrophysics
Contributed Talk
We have developed a position-sensitive scintillation camera with an
area of 15×15cm2 for absorber of a Compton gamma-ray camera for
astronomy. It consists of 3×3 array of position sensitive PMTs
(Hamamatsu Flatpanel H8500). Each PMT has 8×8 anodes with a pitch of
6mm and is coupled to 8×8 array of pixelated 6×6×13mm3 GSO
scintillators.
We chose the GSO scintillator because it has...
Prof.
Bob Ott
(Institute of Cancer, Royal Marsden Hospital, London)
13/09/2005, 16:00
Applications in Nuclear Medicine And Radiology
Invited Talk
The presentation will cover the applications of radiation detectors to
digital X-ray imaging, fast X-ray CT scanning, single photon emission
computed tomography (SPECT) for small animals, whole-body SPECT/CT
scanning, positron emission tomography (PET) for small animals and the
latest crystals developed for PET and SPECT. There will be a brief
introduction to the use of Active Pixel...
Mr
Sebastien Bonzom
(IPN Orsay, France)
13/09/2005, 16:30
Applications in Nuclear Medicine And Radiology
Contributed Talk
Surgery is still considered the primary therapeutic procedure for
high grade gliomas and several recent clinical studies have shown
that gross total tumor resection is directly associated with longer
and better survival when compared to subtotal resection. Considering
this context and based on a first experience in radio-guided surgery
[1,2], we are currently developing an...
Dr
Ignacio Redondo-Fernandez
(Department of Radiotherapy Physics, Weston Park Hospital)
13/09/2005, 16:45
Applications in Nuclear Medicine And Radiology
Contributed Talk
The treatment of cancer using radiotherapy is rapidly advancing;
particularly with the advent of Intensity Modulated Radiotherapy
(IMRT) which allows dynamic shaping of the dose delivered to the
patient. This makes possible the treatment of tumours close to
critical areas of the body eg. the spine. To allow the full
potential of this powerful technique to be realised requires...
Mr
Mohammed Alnafea
(University of Surrey)
13/09/2005, 17:00
Applications in Nuclear Medicine And Radiology
Contributed Talk
The incident of breast cancer is increasing and thus requires a
powerful diagnostic technique for early detection. X-ray mammography
(as screening and diagnostic tool) is claimed to be the golden
standard in breast tumour imaging. However, mammographic findings
are, non-specific in many cases, and adjunctive methods such as
nuclear medicine techniques are needed. Planar...
Dr
Silvia Pani
(University College London)
13/09/2005, 17:15
Applications in Nuclear Medicine And Radiology
Contributed Talk
Although conventional mammography is currently believed to be the
most effective breast screening tool, alternative techniques are
being sought for those cases in which a second-stage examination is
required.
Diffraction Enhanced Breast Imaging (DEBI) is a promising
alternative, as the difference in the diffraction profiles of
healthy breast tissue and of carcinoma is much more...
Dr
Wasi Faruqi
(MRC Lab.Molec.Biology, Cambridge,UK)
14/09/2005, 09:00
Examples of applications of pixel detectors in several areas of the life sciences
will be presented with emphasis on x-ray and electron scattering and some
comparisons between the two techniques.
Dr
Keith Mathieson
(University of Glasgow)
14/09/2005, 09:30
New Techniques for Positron Emission Tomography
Contributed Talk
Degenerative photoreceptor diseases, such as age-related macular
degeneration and re-
tinitis pigmentosa, are the most common causes of blindness in the
western world. A
potential cure is to use a microelectronic retinal prosthesis to
provide electrical stimu-
lation to the remaining healthy retinal cells. Due to the success of
cochlear implants in
restoring hearing to the...
Mr
Gerard Turk
(University of Liverpool)
14/09/2005, 09:45
New Techniques for Positron Emission Tomography
Contributed Talk
An orthogonal strip
HPGe detector has been manufactured by Ortec. The dimensions of the
crystal are 60 × 60 × 20 mm. The crystal is electrically divided
into 12 strips of a 5 mm width on both sides of the detector.
Combined with digital electronics and pulse shape analysis (PSA),
the detector has the potential to reduce the position resolution to
1 mm3. The improvement of position...
Dr
Paul Soler
(University of Glasgow)
14/09/2005, 10:00
Hybrid Photon Detectors (HPD) have been chosen for the Ring Imaging
Cherenkov (RICH) detectors of the LHCb experiment. Photons impinging
on a multi-alkali S20 photo-cathode deposited on a quartz window
produce photo-electrons that are accelerated by a 20 kV potential
onto a silicon pixel sensor anode. The sensor is segmented into 8192
pixels of size 0.0625 mm x 0.5 mm that are...
Mr
Kaori Hattori
(Cosmic Ray Group, Dept. of Physics, Kyoto Univ.)
14/09/2005, 10:15
We are developing a micro-Time Projection Chamber (micro-TPC) based
on a micro-pixel chamber (μ-PIC). A Micro-TPC is employed for an
electron-tracking Compton camera [1,2].
A μ-PIC is a fine pixel-type two-dimensional imaging detector with a
pixel pitch of 400μm and it has a detector area of 10×10cm2. We
achieved a maximum gas gain of 15,000 and stable operation over
1,000 hours...
Dr
Wilton Catford
(University of Surrey)
14/09/2005, 11:00
Secondary beams of radioactive nuclei open up new opportunities in nuclear
structure studies and also bring extra requirements for position sensitive
detectors. Individual incident beam particles often need to be tracked, and then
the angles and energies of reaction products need to be recorded with
extraordinarily high efficiency to compensate for low beam currents of less than...
Laura Nelson
(University of Liverpool)
14/09/2005, 11:30
Nuclear structure studies utilizing the technique of gamma ray
spectroscopy requires the use of state of the art detector systems.
The advent of highly segmented High-Purity Germanium detectors and
the method of Pulse Shape Analysis to determine the positions of
interactions [1] will allow for greatly improved efficiency as well
as excellent angular resolution. The Advanced Gamma...
Mr
Robert Glover
(University of York)
14/09/2005, 11:45
Two photon emission is a second order nuclear decay process which
can, in principle, compete with any single photon or electron decay
mechanism. In practice, such a process is very difficult to observe
in the presence of a competing single-photon decay due to it being
indistinguishable from Compton scattering. The two-photon branch
can, however, be distinguished where no single...
Dr
Yuri Tsyganov
(JINR, Dubna)
14/09/2005, 12:00
Three approaches to the measurement of a rare alpha decaying
products produced in heavy-ion induced nuclear reactions are
described. One is based on a chemical extraction and following
deposition of the nuclides under investigation onto the surface of
the detector, whereas the second one is associated with long –lived
products implanted into silicon detectors by using the...
Dr
Alexander Rodin
(Flerov Laboratory of Nuclear Reactions, Russia)
14/09/2005, 12:15
We present an array of position sensitive detectors designed for the
work with the beam of radioactive nuclei delivered by the separator
ACCULINNA /1/. It is in use in the studies made on the structures of
light nuclei with extreme neutron excess /2/. A pair multi wire
proportional chambers (MWPC) installed in the front of a target is
used for the measurement of the hit co-ordinates...
Prof.
Heinz Graafsma
(ESRF, France)
14/09/2005, 14:30
Detectors for Synchrotron Radiation and Spillation Neutron Sources
Invited Talk
Detectors at synchrotron sources have always been a weak link, and continue to be
so today. Although there has been considerable improvement in the detectors and the
detector technologies used at storage rings, the development of the source
brilliance has been even more significant, thereby widening the gap between the
source and the detector performances. And short overview of the...
Dr
Dave Langstaff
(University of Wales, Aberystwyth, UK)
14/09/2005, 15:00
Detectors for Synchrotron Radiation and Spillation Neutron Sources
Contributed Talk
A one dimensional detector array using MCP technology in conjunction
with a custom ASIC is presented. The detector chip features 768
pixels, each 3mm in length on a pitch of 25um, giving a length in
the dispersive direction of 19.2 mm. Each pixel is furnished with a
pre-amplifier and discriminator coupled to a 16-bit counter. The chip
and MCP are mounted on a ceramic and stainless...
Dr
Spyros Manolopoulos
(CLRC-RAL)
14/09/2005, 15:15
Detectors for Synchrotron Radiation and Spillation Neutron Sources
Contributed Talk
The microstrip detector is the workhorse of position sensitive
detectors for tracking in particle physics experiments. Spatial
resolution of a few m is easily achieved at read-out rates of few
MHz. Utilising modern fabrication techniques (photolithography and
ion implantation) provides with reliable and versatile devices with
designs that can be tailored to meet the demands of...
Prof.
Hiroyuki Takahashi
(School of Engineering, University of Tokyo, JAPAN)
14/09/2005, 15:30
Detectors for Synchrotron Radiation and Spillation Neutron Sources
Contributed Talk
We are developing a new ultra-long multi-grid-type microstrip gas
counters (640 mm long) for neutron scattering experiments at
spallation neutron source facilities. We employed a multi-grid-type
electrode structure for stabilizing the gas amplification process in
this MSGC. Also, we implemented a global-local-grading method for
fast readout method where we divide a cathode signal...
Prof.
Colin Whitehouse
(CCLRC Daresbury Laboratory)
14/09/2005, 15:45
Invited Talk
Dr
Nigel Rhodes
15/09/2005, 09:00
Astrid Muennich
(RWTH Aachen)
15/09/2005, 09:30
A high resolution TPC with gas amplification based on micro pattern
gas detectors is a promising candidate for the main tracker at the
ILC detector. The physics goals and the expected enviroment at the
ILC requires the development of a TPC with unprecedented performance.
Extensive R&D work has started to meet these challenges. We studied
the process of ion backdrift and...
Dr
Harry van der Graaf
(National Institute for Nuclear Physics and High-Energy Physics, The Netherlands)
15/09/2005, 09:45
Conventional readout systems for Time Projection Chambers (TPCs)
based on wire chambers have certain limitations concerning counting
rate and spatial resolution. We have built a new type of TPC which
will not suffer from these limitations.
Our mini-TPC consists of a MediPix chip, a Micromegas and an cathode
plane. With the proper gas mixture and voltages it is possible to
detect...
Mr
Manuel Caamano Fresco
(University of Santiago Compostela)
15/09/2005, 10:00
With the recent improvement in the field of exotic beam, especially
with the SPIRAL facility at GANIL, a new area of the nuclear chart
is now available for experimentation. Nevertheless the intensity of
such beams is still relatively low (few thousands of particles per
second), and for some reactions of interest the cross sections are
low. Thus it is essential to be able to perform...
Prof.
Amos Breskin
(The Weizmann Institue of Science)
15/09/2005, 10:15
The thick GEM-like (THGEM) electrode is a rather new gas-avalanche
electron multiplier, economically produced by standard printed
circuit board (PCB) drilling and etching techniques. Its structure
is similar to that of standard GEM, but its dimensions are expanded,
with thickness varying from 0.4 to 3.2 mm and the mechanically-
drilled hole diameter varying from 0.3 to 1mm. The Cu...
Mr
Asimakis Asimidis
(University of Ioannina)
15/09/2005, 10:30
A portable PC-based X-ray imaging system has been developed based on
a 2D silicon microstrip detector and particle physics readout
electronics. The sensor is housed in a specially built hybrid, which
also hosts the front-end electronics. This hybrid is attached to the
PC with a flat cable which makes it a flexible probe. The hybrid,
including the sensor was developed earlier in the...
Mr
Steven Plank
(University of Edinburgh)
15/09/2005, 10:30
DRIFT (Directional Recoil Identification From Tracks)
is a Time Projection Chamber (TPC) that can provide
directional signature. As the Earth rotates and revolves
around the Sun a diurnal and annual signal modulation
could be detected as a result of relative motion between
the Earth and a non-rotating WIMP halo - providing
very strong background discrimination.
Currently operational and...
Mr
Amir Intisar
(School of Engineering and Design, Brunel University)
15/09/2005, 10:30
We describe an instrument concept using Charge Coupled Devices (CCDs) capable of
simultaneously recording the X-ray diffraction (XRD) and X-ray fluorescence (XRF)
information from a sample. The instrument concept uses deep depletion CCDs in
photon counting mode which can efficiently detect X-rays from 0.5-10 keV. One such
instrument under study, named Mars-XRD, is a miniature XRD \...
Dr
Masaki Kataigiri
(Japan Atomic Energy Research Institute)
15/09/2005, 10:30
We have been developing a neutron imaging gas detector with a high
spatial resolution and with a high temporal response for the neutron
scattering instruments at the pulsed neutron source in the Japan
proton accelerator research complex.
To meet the requirements for the instruments for neutron
reflectometory or for small angle neutron scattering, where a
spatial resolution of...
Dr
Michael Karagounis
(Universitaet Bonn)
15/09/2005, 10:30
An ASIC capable of counting individual hits on a silicon microstrip
detector used in a Compton polarimeter has been developed. Laser
photons backscattered off an incident high-energy electron beam in
the 3.5GeV electron stretcher ring ELSA at Bonn university are pair
converted in a lead convertor and then detected on a silicon strip
sensor. The sensor is read out by a mixed-signal...
Dr
Kazuhiro Nakazawa
(Department of High Energy Astrophysics, ISAS/JAXA, Japan)
15/09/2005, 10:30
Compton cameras are the most promising approach for gamma-ray
detection from several tens keV to several MeV. High energy
resolution and position resolution are of particular importance to
obtain high angular resolution, and hence clear images. We are
developing new Compton cameras using Si and CdTe semiconductor
position-sensitive detectors. Si is suitable for a scatterer...
Mr
Atsushi Takada
(Kyoto University)
15/09/2005, 10:30
A Micro Pixel Chamber, called “-PIC”, is a gaseous 2D imaging
detector with a fine pixel electrode based on the Printed Circuit
Board technology, and we developed it for the X/gamma-ray imaging
and the tracking of the charged particles [1]. The previous -PIC
has a fine position resolution (RMS ~120m), a high gas gain (Max
~15000), good gas gain uniformity (4.5% RMS) and the...
Prof.
R.Ferreira Marques
(Laboratório de Instrumentação e Física Experimental de Partículas , Portugal)
15/09/2005, 10:30
Timing Resistive Plate Chambers (tRPCs) are planar gaseous detectors
made with resistive electrodes, accurately spaced, that define very
thin gas gaps. Such detectors are known to provide timing accuracies
around 50 ps sigma for minimum ionizing particles.
In practice, the counting rate capability of RPCs is strongly
conditioned by the availability of suitable resistive materials...
Mr
Ferran Fernandez Banque
(LLS, Barcelona, Spain)
15/09/2005, 10:30
One of the most known 2D X-ray detectors is the MWPC (Multiwire
Proportional Counter). This is a 2D position sensitive gas detector
based in the proportional chamber. It consists of a frame with
parallel wires which form a plane (anode) sandwiched between two
cathodes planes formed also by parallel wires.
In this job, we describe a complete solution to manufacture anodes
and...
Mr
James Parkin
(University of Surrey)
15/09/2005, 10:30
Cadmium Manganese Telluride is a semiconductor material that has
previously been used as IR detectors, visible and near-IR lasers and
solar cells. However, despite its promising properties for radiation
detection, it has so far seen little investigation in this area.
Samples have been grown that show high resistivity (> 1010 Ωcm) and
high μτ (>10-6 cm2/V) [1]. It has also been shown...
Dr
Junko Kohagura
(Plasma Research Centre, University of Tsukuba)
15/09/2005, 10:30
Two- or three-dimensional X-ray tomographically reconstructed data
analyses by the use of multichannel silicon semiconductor detectors
play an important role in investigating plasma electron behaviour in
controlled thermonuclear fusion research. However, recent harsh
radiation environments in fusion experiments with deuterium-tritium
(D-T) and/or deuterium-deuterium (D-D) reactions...
Mr
James Carpenter
(Space Research Centre, University of Leicester)
15/09/2005, 10:30
Modern microchannel plate detectors exhibit low quantum efficiency
in the extreme ultra violet range (100-1000 Å) compared to those
manufactured before 1990. The cause of this reduction in efficiency
is unknown. We describe recent investigations into the variation of
surface composition along the channels of a number of MCPs
exhibiting high and low efficiency. These compositional...
Mr
Kenji Shimazoe
(Department of Quantum Engineering and Systems Science, University of Tokyo, Japan)
15/09/2005, 10:30
We have designed and fabricated 10 channel/6bit waveform sampling
ASICs using ROHM 0.35 um CMOS technology. This chip was designed for
GSO-APD gamma-ray detector and provides a function of “waveform
recording” at a sampling frequency of 100MHz. This chip has
10channel inputs and each channel has preamp/variable gain
amplifier/6-b folding ADC. The folding ADC greatly reduces the...
Suzanne Crittell
(University of Liverpool)
15/09/2005, 10:30
The aim of this experiment was to use the Diffraction-Enhanced
Imaging (DEI) system at Daresbury, which has recently upgraded with
new Channel-cut crystals to produce images of mice’s feet. There
were two types of mice’s feet used, normal and arthritic. The two
types of sample were imaged and compared in order to determine
whether it was possible to detect the changes in cartilage...
Mr
Neil Murray
(Brunel University)
15/09/2005, 10:30
The need for reducing CCD readout noise is highly relevant in X-Ray
astronomical detectors such as those proposed for the ESA XEUS
mission.
Digital sampling and filtering of a CCD's output using an ADC and DSP
or FPGA is presented to reduce the effects of readout noise and lower
system complexity. Correlated double sampling is used to resolve individual
pixel charge values, with the...
Dr
Giulio Pellegrini
(Univ. Autonoma de Barcelona, Spain)
15/09/2005, 10:30
Charge sharing is an important factor to be considered in pixel
detector design for single-photon counting electronics. Its effect
on such devices, if proper adjustment of the pixel threshold is not
performed, is to give rise to false counts in the pixels
neighbouring the hit one. Nevertheless, it is difficult to evaluate
or measure, as single-photon counting electronics do not give...
Prof.
Bob Ott
(University of Surrey, Rutherford Appleton Laboratories and the Institute of Cancer Research)
15/09/2005, 10:30
The PETRRA positron camera is a novel, large-area positron camera
based on coupling barium fluoride crystals to a multiwire
proportional chamber filled with a photosensitive vapour, tetrakis-
dimethylamino ethylene (TMAE). The present camera consist of two
detectors each with 600mm x 400mm sensitive area containing sheets
of 1cm thick crystals. This camera has a spatial resolution of...
Mr
Andrzej Kotarba
(Polish Academy of Sciences)
15/09/2005, 10:30
A position sensitive scintillator strip detector used for the
Luminosity Monitor of the ZEUS experiment is described. The detector
readout based on the R7400 photomultipliers is presented. It offers
satisfactory spatial resolution of 3 mm and a good signal to noise
ratio that allows to run at the rate up to 10 MHz. The data obtained
with the position detector are used for luminosity...
Dr
Fred Ruddell
(Northern Ireland Semiconductor Research Centre)
15/09/2005, 10:30
There are a number of position sensitive detector applications where
there is a requirement for an imaging device which has enhanced
response in the near infra-red spectrum (0.77µm to 1.5µm). Although
infra-red detectors are fabricated using III-V and HgCdTe materials,
integration with silicon readout circuitry is not easily achievable,
often relying on bump-bonding technology. ...
Dr
Robert Page
(University of Liverpool)
15/09/2005, 10:30
GREAT is a Position Sensitive Spectrometer for Studying Exotic Nuclei. It is a
detector designed for use in the focal plane of Gas Filled Recoil Separators. The
detector system measures alpha, beta, gamma, protons and electron decays of separated
fusion products. The GREAT detector consists of a multi-wire proportional counter, 28
Si PIN diodes, two 60x40mm double sided silicon strip...
Dr
Dhiren Kataria
(Mullard Space Science Laboratory, University College London)
15/09/2005, 10:30
Position sensitive micro-channel plate detectors are attractive for
space plasma instruments but have a number of limitations. Most of
the techniques have limited global rate handling and require the MCP
to run at high gain with MCP lifetime implications. In addition,
available mass and power resources limit the number of channels of
readout electronics.
A fast position sensing...
Dr
Masaki Katagiri
(Japan Atomic Energy Research Institute)
15/09/2005, 10:30
High-intensity pulsed neutron sources have made a great deal of
progress at Japan (J-PARC project), U.S.A. (SNS project), and UK
(ISIS-II project). The specifications required for neutron imaging
detectors used at these facilities are a high-position resolution,
high-detection efficiency, a high counting rate, a high n/ ratio,
etc. Especially the detectors which exhibit a...
Prof.
Robert Lewis
(Monash University, Australia)
15/09/2005, 10:30
The instrumentation group within Monash Centre for Synchrotron
Science (MCSS) and the Co-operative Research Centre for Biomedical
Imaging Development (CRC BID) are developing detectors for medical,
industrial, synchrotron and other scientific applications. A seven
year project has been initiated to develop hybrid pixel detectors
for medical radiography. The device will comprise an...
Mr
Andrea Fant
(Rutherford Appleton Laboratory)
15/09/2005, 10:30
The I-ImaS (Intelligent Imaging Sensors) is an EU project whose
objective is to design and develop intelligent imaging sensors and
evaluate their use within an adaptive medical imaging system,
specifically tailored to Mammography and Dental Radiology. The
system will employ an in-line scanning technology approach and
proposes the use of CMOS active pixels sensors. The I-Imas system...
Dr
Anatloy Maltsev
(JINR, Russia)
15/09/2005, 10:30
Detectors for Synchrotron Radiation and Spillation Neutron Sources
Contributed Poster
The methods and detectors for nondestructive diagnostics and study
of charged
particles of bunches or beams (electron, electron-ion, proton) are
submitted
in this paper. The methods of based on the use of relativistic
particles
synchrotron radiation in a wide spectral range, from the ultraviolet
to the
far long-wave infrared region [1, 2].
Methods for measuring and estimating...
Dr
Serena Mattiazzo
(University of Padova, Dept. of Physics & INFN Padova)
15/09/2005, 10:30
At the INFN Legnaro Laboratories (Padova, Italy) a new instrument
dedicated to the study of induced radiation damage in
microelectronics devices has been recently installed in the SIRAD
beam line, a facility devoted to heavy ion characterization of
microelectronics devices and materials. This new instrument consists
of an electronic microscope capable of recognizing with micrometric...
Dr
Peter Kodys
(Institute of Particle and Nuclear Physics, Charles University)
15/09/2005, 10:30
This presentation collects experiences from tests of ATLAS end cap
SCT
modules using infrared semiconductor laser on 1060 nm wavelenght.
Sophisticated method of focusing was developed. Timing and interstrip
properties of modules were measured.
Tests of silicon sensors simulate real experimental conditions and
check
important detector properties. Laser tests have good time and...
Dr
Kamil SEDLAK
(University of Oxford)
15/09/2005, 10:30
The ATLAS SCT (semiconductor tracker) is a major component of the
inner detector being built for the ATLAS experiment at LHC. It
comprises 2112 barrel modules mounted on four concentric barrels of
length 1.6m and up to 1m diameter, and 1976 endcap modules supported
by a series of 9 wheels at each end of the barrel region, giving a
total silicon area of 60m2.
At The University of...
Dr
Anatoly Maltsev
(JINR, Russia)
15/09/2005, 10:30
Detectors for Synchrotron Radiation and Spillation Neutron Sources
Contributed Poster
Results are presented of measurements of the equilibrium
radius and the minor cross-section sizes of the ring-shaped electron
bunch.
A multichannel diagnostic system based on measurement of the
synchrotron
radiation and disigned for investigation of the dynamics of the
electron
ring compression is described.
The system includes an optical channel; an infrared radiation
detector;...
Mr
Hugo Natal da Luz
(University of Coimbra)
15/09/2005, 10:30
MicroHole and Strip Plate detector (MHSP) has an intrinsic
capability for position detection. This new gaseous multiplier conceived as a
combination of an MSGC and GEM in a single, double sided element, integrates two
successive independent stages of charge amplification, a GEM-like hole-avalanche
and an MSGC-like anode-strip avalanche. Like the GEM, the MHSP
is fabricated with...
Dr
Tanja Palviainen
(Lappeenranta University of Technology, Finland)
15/09/2005, 10:30
Detectors for n-type silicon with an n+ -type guard ring have been
investigated. The Si detectors in high-energy physics experiments
require a reliable performance in irradiation conditions. Minimizing
dead wafer space is an additional advantage as it enhances the
efficiency of a detector [1]. The guard ring technique has evolved
to minimize this dead space at the edge of the...
Dr
J.C. Bourgoin
(Université Pierre et Marie Curie)
15/09/2005, 10:30
Self-supported thick (larger than 200 microns), non intentionally doped, epitaxial
GaAs layers are good candidates for X-ray imaging for the following reasons. Their
electronic properties are homogeneous over large areas (4 inches diameter), they
can be grown at low cost, the technology to realize pixel detectors of any size is
standard, the defect concentration is very low and the...
Mr
Dale Philips
(Monash University, Australia)
15/09/2005, 10:30
The Monash Centre for Synchrotron Science (MCSS) Instrumentation
Group is working on various detector designs for biomedical imaging
and synchrotron use. The development of orthogonal planar strip HPGe
detectors offers advantages of good energy and x,y,z-axis position
resolution of gamma ray interactions. The efficiency in terms of
photoelectron absorption type events is quite low...
Mr
Ferran Fernandez Banque
(LLS, Barcelona, Spain)
15/09/2005, 10:30
Micro pattern gas detectors (MPGD) could become suitable devices to
carry out time-resolved X-ray diffraction experiments in the sub-
millisecond time scale at synchrotron radiation facilities. This is
because the small anode-cathode distances in these devices allow
short ion drift times, thus reducing one of the most important count
rate limitations, i.e. space charge effects. This...
Dr
Jon Lapington
(Space Research Centre, University of Leicester)
15/09/2005, 10:30
Simulation of detector operation can be a valuable tool in optimizing
design before recourse to cutting metal, and if successful, can
significantly reduce the requirement for design iteration. This paper
describes this process as applied to the reduction of spatial non-
linearities in electronic charge division readout devices.
Several theoretical analyses of the non-linearities...
Dr
Junko Kohagura
(Plasma Research Centre, University of Tsukuba)
15/09/2005, 10:30
Recent findings of the importance of radially sheared electric-field
formation in plasmas enhance the requirements of spatial-profile
measurements of ion-confining potentials and ion-current signals
simultaneously. For instance, the frequency analyses of end-loss ion-
energy spectrometer arrays (IES) signals show the existence of
electron drift waves, giving a peaked structure over a...
Dr
Anatoly Maltsev
(JINR, Russia)
15/09/2005, 10:30
Detectors for Synchrotron Radiation and Spillation Neutron Sources
Contributed Poster
The special high-vacuum windows and optical systems for the
conclusion from
the accelerator of synchrotron radiation and focusing it on the
detector are
submitted in this review [1,2]. The results of account and research
of optical
system are described punctually. There are examples of practical use
of
a broad-band long-focus optics with precision by integrated and...
Mr
Noriaka Tawa
(Osaka University)
15/09/2005, 10:30
We developed a new photon-counting device for
X-ray in the 0.1-100 keV energy range. The new
device is an X-ray charge-coupled device (CCD) on
which scintillator is directly deposited. It is called
a scintillator-deposited CCD (SD-CCD). Low energy
X-rays (0.1-10 keV) can be directly detected by
the CCD while high energy X-rays (10-100 keV) pass
through it into the scintillator where...
Celeste Fleta
(Centro Nacional de Microelectrónica)
15/09/2005, 10:30
One of the technological challenges of the fabrication of n-in-p and
n-in-n microstrip silicon detectors is to obtain a good insulation
of the n-strips while ensuring a satisfactory electrical performance
of the devices. A common practice to avoid the formation of the
conductive electron layer at the oxide-silicon interface is the
definition of p-type zones ("p-stops") that surround...
Mr
Jerome Beucher
(Ecole des Mines de Nantes)
15/09/2005, 10:30
We report on gain and discharge rate measurements with micro-pattern
gaseous detectors using micro-meshes. Some geometrical
configurations of Parallel Ionization Multiplier (PIM) and
MICROMEGAS, operated with Ne+10%CO2 gas mixture, are considered.
Tests have been performed on the T9 proton-pion beam facility at
CERN.
For MICROMEGAS configurations, the discharge rate, greater...
Mr
Francisco Neves
(University of Coimbra)
15/09/2005, 10:30
Liquid xenon has been recognised as a promising medium for direct
detection of hypothetical
Weakly Interactive Massive Particles. Therefore, investigation of
the response of liquid xenon to
nuclear recoils and g-rays is of primary importance.
In particular, we have recently measured the relative scintillation
efficiencies of liquid xenon for
these two particles by irradiating a...
Prof.
Robert Lewis
(Monash University, Australia)
15/09/2005, 10:30
The SmartPET collaboration is investigating the e_cacy of using two
planar High-Purity Germanium (HPGe) double-sided strip detectors as
a Compton imaging Positron Emission Tomography (PET) system. Monte
Carlo simulations suggest that a large proportion of interactions
within the detectors will occur within a small spatial and temporal
window, introducing signi_cant ambiguities within...
Dr
Anatoly Maltsev
(JINR. Dubna)
15/09/2005, 10:30
Detectors for Synchrotron Radiation and Spillation Neutron Sources
Contributed Poster
Results of measuring the equilibrium radius and dimensions of the
small cross section of the electron ring bunch are presented. The
description of multi-channel sistem for investigation of dynamics of
the electron ring compression by synchrotron radiation is given. The
system consists of an optical channel, infrared radiation detector, a
unit of amplifiers, electronics of monitoring...
Mr
Gabriele Segneri
(INFN Pisa and Università di Pisa, Italy)
15/09/2005, 10:30
An LHC upgrade with a luminosity increase of one order of magnitude
has been recently envisaged. In this scenario, silicon detectors
produced according to the present technologies would not withstand
the increased radiation fluences.
Magnetic Czochralski silicon (MCz) can be a promising solution for
future experiments due to its high intrinsic oxygen concentration,
which improves...
Dr
Kan-Cheung Cheung
(Daresbury Laboratory)
15/09/2005, 10:30
Detectors for Synchrotron Radiation and Spillation Neutron Sources
Contributed Poster
Gas filled multi-channel detectors are ideally suited for x-ray
applications that require photon counting and position sensitivity.
This type of proportional counters is superior in time resolving
experiments where low dark noise and microseconds resolution are
essential, eg. SAXS/WAXS for investigating polymer formation and XRD
for studying mineral crystal growth. Gas Micro Strip...
Mr
David Scraggs
(University of Liverpool)
15/09/2005, 10:30
The smartPET project is an attempt to use high purity germanium
detectors for use in positron emission tomography (PET). The current
spatial resolution of PET using BGO and LSO detectors is ~5mm, and
the smartPET project aims to improve spatial resolution to 1mm. Two
planar Germanium detectors with dimensions of will be used in
coincidence; these detectors are pixelated by means of...
Mr
Matthew Dimmock
(University of Liverpool)
15/09/2005, 10:30
High-precision g-ray spectroscopy is currently the most powerful
tool that can be used to investigate the structure of a nucleus
under extreme conditions. High Purity Germanium (HPGe) detectors
with their excellent energy resolution and good timing resolution
have been the main ‘work horse’ in this field.
The AGATA symmetrical segmented Canberra Eurisys (CE) prototype
germanium...
Mr
Alexander Furgeri
(University of Karlsruhe)
15/09/2005, 10:30
The Compact Muon Solenoid is one of the experiments at the Large
Hadron Collider under
construction at CERN. Its inner tracking system consist of the world
largest Silicon
Strip Tracker. Its sensors are single sided n-doped sensors with p-
strip
implants, poly crystalline bias resistors and AC coupling. In total
24244 sensors
covering an area of 206 m² will be implemented in the...
Dr
Jamil Mir
(CCLRC Rutherford Appleton Laboratory)
15/09/2005, 10:30
Abstract: Experimental work was carried out to evaluate the
performance of a Gas Electron Multiplier (GEM) operated with a
Micromesh readout plane that enabled the induction gap to be set at
50 microns. We measured the essential operational parameters of this
system using Ar(75%)-isobutane (25%) as the counter gas mixture. The
measurements included the effective gain (signal-to-noise...
Mr
Andrew Mather
(University of Liverpool)
15/09/2005, 10:30
The SmartPET project will examine the possibility of using planer
Hyper Pure Germanium Detectors (HPGe) within a Positron Emission
Tomography (PET) system. This system is designed to image small
animals.
The image reconstruction algorithms take measured or simulated
projection data of an underlying radioactive source distribution and
attempt to produce an accurate 2D or 3D image...
Mr
Reynold Cooper
(University of Liverpool)
15/09/2005, 10:30
The SmartPET project aims to exploit advances in the sensitivity,
speed, position and energy resolution of HPGe detectors to construct
a small animal Positron Emission Tomography (PET) system.
The small animal scanning system will consist of two planar HPGe
detectors separated by 109mm and housed in a rotating frame allowing
data acquisition over a full 180o range. Each detector...
Prof.
Gerhard Lutz
(MPI Halbleiterlabor, Munich)
15/09/2005, 10:30
A new generation of MOS-type DEPFET active pixel sensors in double
metal/double polysilicon technology with ~25µm pixel size has been
developed to meet the requirements of the vertex detector at the ILC
(International Linear Collider). The paper presents the design and
technology of the new linear DEPFET pixel cells including a module
concept and results of a feasibility study on how...
Mr
Thomas Greig
(Brunel University)
15/09/2005, 10:30
The design of pixel test structures for CMOS active pixel sensors
(APS) being developed by Brunel University and e2v technologies ltd
are described in this paper. The APS pixel is a development of a
standard readout and sensing arrangement employing three transistors
per pixel but has been optimised for indirect x-ray detection
applications. The pixel is tuned to have a narrow band...
Prof.
Robert Lewis
(Monash University, Australia)
15/09/2005, 10:30
The SmartPET is a novel Positron Emission Tomography (PET) system
that uses High Purity Germanium (HPGe) detectors in a dual-head
camera design. Alone, the superior 3D position resolution
o_ered by semi-conductor detectors removes the depth-of-interaction
problem inherent in many PET camera designs. However, there is
another opportunity o_ered by the system. Coincident...
Mr
Adrian Martindale
(University of Leicester)
15/09/2005, 10:30
We describe the operation of ultra-small pore Microchannel Plates
(MCPs) as detectors for soft X-ray radiation. These new plates
represent a marked improvement in MCP technology. Typical plates at
present have pore diameters of ~8-12μm, whereas the new generation
have diameters ranging from 3-6μm. This reduction in pore diameter
will clearly have a positive impact on the spatial...
Dr
Sorina Lazanu
(National Institute for Materials Physics, Romania)
15/09/2005, 10:30
Semiconductor detectors are widely used in modern high energy
physics experiments. They are elements of the high resolution vertex
and tracking system, as well as of calorimeters
The bulk displacement damage in the detector, consequence of
irradiation, produces effects at the device level: increases the
leakage current, decreasing the satisfactory Signal/Noise ratio,
produces...
Dr
Junko Kohagura
(Plasma Research Centre, University of Tsukuba)
15/09/2005, 10:30
Tomographic reconstructions of X-ray emission from hot electrons
having a temperature of several tens of keV have been carried out by
the use of the novel position-sensitive X-ray semiconductor detector
array. The X-ray detection system in the thermal-barrier region of
the GAMMA 10 tandem-mirror plasmas consists of a 48-channel silicon
semiconductor detector array.
X-ray energy...
Prof.
Timothy Sumner
(Imperial College London)
15/09/2005, 11:15
Mr
Hiroyuki Sekiya
(Kyoto University)
15/09/2005, 11:45
Time Projection Chamber (TPC) has been recognized as a potentially
powerful detector for the WIMPs search by measuring the directions
of nuclear recoils, in which the most convincing signature of WIMPs
caused by the earth’s motion around the Galaxy appears [1]. Since
the energy deposits of WIMPs to nuclei are only a few tens of keV
and the ranges of nuclei are limited, such TPCs...
Prof.
Brian Fulton
(University of York)
15/09/2005, 12:00
When Pauli first postulated the existence of the neutrino, he
suggested that it would have no charge and no mass. This view held
for almost 70 years, but a few years ago results from solar and
atmospheric neutrino studies, now confirmed by terrestrial
accelerator and reactor measurements, revealed the phenomenon of
neutrino oscillations. This is the changing of one type of neutrino...
Mr
Alex Lindote
(University of Coimbra)
15/09/2005, 12:15
ZEPLIN III is a xenon detector for direct dark matter searches soon
to be deployed underground at the Boulby mine (North Yorkshire, UK).
This two-phase (liquid/gas) system will look for the rare nuclear
recoils that should be produced by elastic scattering of Weakly
Interacting Massive Particles (WIMPs) off xenon atoms.
Neutron interactions can also cause nuclear recoils and...
Dr
Paul Sellin
(University of Surrey)
15/09/2005, 13:30
The demand for new detector materials continues to develop, across a wide range
of applications including X-ray and synchrotron imaging, neutron detection, and
radiation hard tracking detectors. In this paper the current status of new
materials for semiconductor detectors will be reviewed, with a particular emphasis
on the requirements for imaging and pixellated devices. In the field...
Prof.
Themis Bowcock
(University of Liverpool)
15/09/2005, 14:00
The LHCb experiment at CERN depends critically on silicon sensors
to provide vertex, tracking and trigger information. The environment
the sensors will be operated in is unique amongst the next
generation of LHC experiments; the sensors will be run in high
vacuum conditions and will receive a high radiation dose. The design
of the sensors for LHCb is described, together with the...
Dr
Anna Macchiolo
(INFN Firenze and Università di Firenze, Italy)
15/09/2005, 14:15
We report on the processing and characterization of micro-strip
sensors produced on n- and p-type Czochralski silicon. The aim of
this work is the development of radiation hard detectors for very
high luminosity colliders. The activity is funded by INFN within
the SMART project in the framework of the RD50 Collaboration.
The devices have been produced by ITC-IRST on 4” wafers,...
Dr
Vasilij Kozlov
(University of Helsinki, Finland)
15/09/2005, 14:30
The single crystal TlBr is a promising candidate as a gamma-ray
detector due to its high stopping power, density (7.56 g/cm3) and
bandgap (2.68 eV). These properties allow to perform a compact
device working at room temperature. However, the transport
properties of TlBr were still plagued by material problems [1].
These problems are manly arisen from purity and quality of the...
Dr
Sabina Ronchin
(ITC-irst, Trento, Italy)
15/09/2005, 14:45
Recently, increased attention has been given to 3D detectors owing
to their capability to control the depletion mechanism by acting on
the layout of the vertical electrodes only. Depletion voltages two
orders of magnitude lower and collection times one order of
magnitude lower than those of standard planar detectors [ ] can be
obtained, by properly designing the electrodes width and...
Dr
Andrew Holland
(Brunel University)
15/09/2005, 16:00
Dr
Jon Lapington
(Space Research Centre, University of Leicester)
15/09/2005, 16:30
The performance and operational advantages of using electronic image
readouts in image intensifiers, such as their simplicity, flexible
format, low noise, and capability for high spatial and temporal
resolution, are offset by the practical issues of housing them
within the detector vacuum enclosure. They commonly require
oversized, non-standard vacuum enclosures, multiple low noise...
Dr
Nick Waltham
(Space Science and Technology Department, Rutherford Appleton Laboratory)
15/09/2005, 16:45
We describe our programme to develop a large-format, science-grade,
monolithic CMOS active pixel sensor for future space science
missions, and in particular an extreme ultra-violet spectrograph for
solar physics studies on ESA’s Solar Orbiter. Our route to EUV
sensitivity relies on adapting the back-thinning and rear-
llumination techniques first developed for CCD sensors. Our first...
Dr
Dave Walton
(Mullard Space Science Lab, University College London)
15/09/2005, 17:00
Results are described from a high-stability multi-CCD focal plane
assembly developed by MSSL for ESA, using new large-format CCDs from
e2v technologies. Particular subjects of investigation are stability
at the 10e-4 to 10e-5 level and crosstalk between CCDs as well as
between nodes of each two-port CCD.
Space-based planetary-transit hunting and asteroseismology missions
such as...
Dr
Junko Hiraga
(JAXA/ISIS, Kanagawa, Japan)
15/09/2005, 17:15
Charge-coupled devices (CCDs) are widely used in soft X-ray
Astronomy as a focal plane detector which has a capability both of
good spatial resolution and good energy resolution up to 10 keV,
simultaneously. For the future X-ray space mission, the thick CCDs
are developed to improve the quantum e±ciency of high energy X-rays
beyond 10 keV.
A mesh experiment has been, so far, the...
Dr
Javier Fernandez
(IEKP, Universitaet Karlsruhe, Germany)
16/09/2005, 09:30
With more than 15000 silicon strip modules and an active silicon area
of 200 squaremetres, the CMS silicon strip tracker will be the
largest silicon tracker ever built. While module mass production has
started in 2004, the detector construction has recently entered
its crucial phase with modules being assembled onto larger
substructures, which in turn are being integrated into the...
Dr
Ankush Mitra
(Institute of Physics, Academia Sinica Taiwan/Fermilab, USA)
16/09/2005, 09:45
The CDFII silicon detector with its 8 layers of double-sided silicon
microstrip sensors and a total 722,432 readout channels is one of
the largest silicon detector devices presently in use by a HEP
experiment. We report our experience commissioning and operating this
complex device during the first four years of Tevatron Run II
program. The performance of the system and its impact on...
Dr
Steve Snow
(University of Manchester)
16/09/2005, 10:00
The ATLAS Semi-Conductor Tracker (SCT) uses silicon strip detectors
to measure trajectories of charged particles coming from 14 TeV
proton-proton collisions at the Large Hadron Collider at CERN. The
SCT provides at least four precise space points, in the radial range
of 27 to 50 cm from the beam, for tracks within the angular
acceptance ||<2.5. The SCT is built up of 4088 modules,...
Dr
Mary-Cruz Fouz-Iglesias
(CIEMAT, Madrid, Spain)
16/09/2005, 10:15
The CMS (Compact Muon Solenoid) is one of the detectors designed to
study the future p-p interactions of the LHC (Large Hadron Collider)
accelerator at CERN. Muons from p-p collisions are expected to
provide clean signatures for many of the interesting processes which
will be studied at LHC. CMS has put a big emphasis on developing a
highly efficient muon system. It consists of four...
Dr
Graham Smith
(Brookhaven National Laboratory, USA)
16/09/2005, 11:00
A description of some basic properties of gas-based detectors that make them
attractive for advanced applications will be made. Of those operating with gas
gain, emphasis will be given to the gas electron multiplier, the pin detector, and
the traditional wire chamber. The benefits of operating in ionization mode will be
explored. Examples of these techniques in experiments employing...
Mr
Hugo Natal da Luz
(University of Coimbra)
16/09/2005, 11:30
MicroHole and Strip Plate detector (MHSP) has an intrinsic
capability for position detection. This new gaseous multiplier conceived as a
combination of an MSGC and GEM in a single, double sided element, integrates two
successive independent stages of charge amplification, a GEM-like hole-avalanche
and an MSGC-like anode-strip avalanche. Like the GEM, the MHSP
is fabricated with...
Mr
Christian Iacobaeus
(Karolinska Institute, Stockholm, Sweden)
16/09/2005, 11:45
Noble liquids are excellent detecting medias: they have a rather
high stopping power, allow electrons and ions to drift and they have
an exceptionally high scintillation yield. All these properties are
simultaneously exploited in the noble liquid Time Projecting
Chambers (TPCs) which allow to visualize charge tracks, measure the
deposited energy and the light to charge ratio [1]. One...
Mr
Stephane Aune
(DAPNIA, Centre d' Etudes de Saclay, Gif sur Yvette Cedex 91191, France)
16/09/2005, 12:00
A new technique of fabrication of Micromegas (MM) using the PCB
technologies has been developed. A standard commercial wire mesh (19
m) was employed as cathode element and the amplification gap was
defined by using spacers (pillars) made out of a 100 m thick Solder
Mask (SM). After a three steps process, lamination, insulation and
development, the detector core is obtained as a...
Dr
Alison Laird
(University of York)
16/09/2005, 12:15
A new detector for nuclear astrophysics studies is being designed
and built by TRIUMF and the University of York. TACTIC, the TRIUMF
Annular Chamber for Tracking and Identification of Charged
particles, is designed to detect low energy charged particles from
reaction studies performed at the relevant astrophysical energies,
in inverse kinematics. TACTIC is a cylindrical ionisation...
Dr
Nicholas Lockerbie
(University of Strathclyde)
Detectors for Astro-Particle Physics
Contributed Talk
A simple optical displacement sensor consisting of an infrared LED
source, a photodiode detector, and an occluding ‘flag’, has been
investigated, for potential use in the Advanced LIGO gravitational
wave detectors. A number of different commercially available LEDs
and photodiodes were tried in the displacement sensor, and an
optimal pair was found. A surprising geometrical effect...
Dr
Andrew Blue
(Dept. Of Physics & Astronomy, University of Glasgow)
Applications in Astronomy and Astrophysics
Contributed Talk
With attractive features such as low power consumption, high dynamic
range and increased in-pixel functionality, Active Pixel Sensors
(APS) have begun to rival charge-coupled devices (CCD) for use as
imaging sensors. Recently work has been undertaken in order to
produce APS devices with enhanced performance and extended
wavelength sensitivity as an alternative to so-called science...
Prof.
Robert Lewis
(Monash University)
Dr
Stephen Biagi
(University of Liverpool)
Pixel Detectors for Charged Particles
Contributed Poster
The charge collection properties of the LHCb n on n silicon
Strip detector was modelled using the DIOS and DESSIS
Packages from the ISE/synopsys program suite.
The detector response to MIPS was modelled in detail as a function
Of applied bias voltage,radiation damage and incident track angle.
a centroid shift in the collected charge between positive and
Negative incident track...
Dr
Ilhan Tapan
(Uludag Universitesi)
Applications in Particle Physics
Contributed Poster
The charge carriers in the detector volume created in the gas
amplification process cause a space charge effect. The fluctuation
in gas amplification process is one of the main factor in the energy
resolution of proportional counters. At low bias voltages only a
very small number of charge carriers are generated and so the space
charge effect is negligibly low. However, as bias...
