Juan Antonio Fuster Verdú
25/09/2006, 14:00
Antonio FERRER
25/09/2006, 14:30
Tim Greenshaw
(Liverpool)
26/09/2006, 09:00
The challenges of experimentation at the International
Linear Collider are discussed and the different detector
concepts designed to cope with those challenges
presented. The differing concepts lead to various
alternative technologies for the major ILC detector
components. These are briefly presented and discussed.
RAY LARSEN
(Stanford Linear Accelerator Center For the ILC High Availability Electronics R&D Effort)
26/09/2006, 09:45
Availability modeling of the proposed International
Linear Collider predicts unacceptably low uptime with
current electronics systems designs. High Availability
(HA) analysis is being used as a guideline for all major
machine systems including sources, utilities, cryogenics,
magnets, power supplies, instrumentation and controls.
R&D teams are seeking to achieve total machine high...
Pamela Klabbers
(University of Wisconsin)
26/09/2006, 10:55
The electronics for the Regional Calorimeter Trigger
(RCT) of the Compact Muon
Solenoid Experiment (CMS) have been produced and
tested. The RCT hardware consists
of 18 double-sided crates containing custom boards,
ASICs, and backplanes. The RCT
receives 8 bit energies and a data quality bit from the
HCAL and ECAL Trigger
Primitive Generators (TPGs) and sends it to the CMS...
Jorgen Christiansen
(CERN)
26/09/2006, 11:20
An overview of testing, time alignment, calibration and monitoring features in the
front-end electronics of LHCb is given. General features for this are defined and
examples are given of how this has been implemented in sub-detector specific front-
end electronics.
Jorge Fernandez De Troconiz
(Universidad Autonoma de Madrid)
26/09/2006, 11:45
The Compact Muon Solenoid (CMS) is a general purpose experiment
designed to study proton-proton collisions at the Large Hadron
Collider (LHC). At the LHC, proton beams will cross each other at a
rate of 40 MHz, producing in average 20 p-p interactions. The CMS L1
Trigger must select interesting collisions at a rate smaller than
100 kHz. The Drift Tube Track Finder (DTTF) implements the...
Dirk Wiedner
(Physikalisches Institut Uni Heidelberg)
26/09/2006, 11:45
The LHCb Outer Tracker is composed of 55000 straw drift tubes.
The requirements for the OT electronics is the precise (1ns) drift
time measurement at 6% occupancy and 1MHz readout.
Charge signals form the straw detector are amplified, shaped and
discriminated by ATLAS ASDBLR chips.
Drift-times are determined and stored in the OTIS TDC and output to a GOL
serializer at L0...
David Gascon
(D. ECM, Universitat de Barcelona)
26/09/2006, 12:10
In this paper the Front End electronics of the Scintillator Pad Detector (SPD) is
outlined. The SPD is a sub-system of the Calorimeter of the LHCb experiment designed
to discriminate between charged particles and neutrals for the first level trigger.
The complete system design is presented, describing its different functionalities
implemented through three different cards and two ASICs....
Luigi Guiducci
(Istituto Nazionale di Fisica Nucleare (INFN))
26/09/2006, 12:35
Drift Tubes chambers are used in the CMS barrel for tagging the passage of high Pt
muons generated in a LHC event and for triggering the CMS data read out. The
Sector Collector system synchronizes the track segments built by trigger modules on
the chambers and deliver them to reconstruction processors (Track Finder, TF) that
assemble full muon tracks. Then, the Muon Sorter has to...
Rafael Antunes Nobrega
(INFN - Sez. Roma)
26/09/2006, 12:35
The document to be presented will describe the
electronic scheme and procedures of
a system implemented to test the Multi-Wired
Proportional Chambers after front-end
dressing for the LHCb Muon Detector and its results.
Given a dressed chamber, this
system is able to diagnose every channel based on
front-end output drivers’
response and noise rate versus threshold analysis, in...
Julien Laubser
(Laboratoire de physique Corpusculaire (LPC) de Clermont-Ferrand)
26/09/2006, 14:15
The Level-0 Decision Unit (L0DU) is the central part of the first trigger level of
the LHCb detector. The L0DU receives information from the Calorimeter, Muon and Pile-
Up sub-triggers at 40 MHz via 24 high speed optical fiber links running at 1.6 Gb/s.
The L0DU performs simple physical algorithm to compute the decision in order to
reduce the data flow down to 1 MHz for the next trigger...
Cristina Biino
(INFN - sezione di Torino)
26/09/2006, 14:40
The CMS electromagnetic calorimeter is composed of 76,000 PbWO_4 scintillating
crystals. The scintillating light is captured by photo-detectors, amplified and
digitized. The conversion is performed inside the detector volume and data are
transported through optical fibers to the off-detector electronics.
About 25,000 Printed Circuit Boards of 5 different types and...
Jean-Pierre Cachemiche
(CPPM IN2P3/CNRS)
26/09/2006, 14:40
The Level-0 muon trigger looks for straight tracks crossing the five muon stations
of the muon detector and measures their transverse momentum. The tracking uses a
road algorithm relying on the projectivity of the muon detector. The Level-0 muon
trigger analyzes every LHC bunch crossing. It handles about 130 GBytes per second.
It finds muon tracks for a bunch crossing in about one...
Cyril Drancourt
(Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP))
26/09/2006, 15:05
The Validation board participates in the electronic for triggering system of LHCb
calorimeter detector.
The board, designed in Annecy-le-vieux Laboratory (LAPP-France), has logic radiation
tolerant components: programmable logic, LVDS deserializer, 1.6Gbits optic transmitter.
The inputs come from Front-end board of 4 different detectors (Electromagnetic,
Hadronic, PreShower,...
Alessandro Nardulli
(Eidgenössische Technische Hochschule, ETH, Zurich, Switzerland)
26/09/2006, 15:05
We report the results of tests of 12800 Very Front End (VFE) readout cards for the
barrel of the CMS electromagnetic calorimeter. A thorough test sequence was applied
to each card including power-on test, burn-in and final detailed calibration. The
results show excellent uniformity of the VFE cards. For instance the analogue,
digital and buffer currents have average values of 1.59, 0.43...
Hiroshi Nomoto
(ICEPP,Tokyo)
26/09/2006, 15:30
For the detector commissioning planned in 2007, a sector assembly of the ATLAS muon endcap trigger chambers
is progressed in CERN intensively. Final technical test for the electronics mounted on a sector must be
accomplished at this stage. For systematic test of the electronics, we have developed a DAQ system on top of the
ATLAS online software framework. The system is not dedicated only...
Thilo Pauly
(European Organization for Nuclear Research (CERN))
26/09/2006, 16:20
The ATLAS Level-1 Central Trigger consists of the Central Trigger Processor (CTP) and the Muon to Central
Trigger Processor Interface (MuCTPI). The CTP receives trigger information from the Level-1 Calorimeter
Trigger system directly, and from the Level-1 Muon Trigger systems through the MuCTPI. It also receives
timing signals from the LHC machine, and fans out the Level-1 Accept signal,...
Jonathan Fulcher
(Imperial College)
26/09/2006, 16:20
The CMS Silicon Tracker is comprised of a complicated set of hardware and software
components that have been thoroughly tested at CERN before final integration of the
Tracker. A vertical slice of the full readout chain has been operated under
near-final conditions. In the absence of the tracker front-end modules, simulated
events have been created within the FED and used to test the...
Vasiliki Mitsou
(Instituto de Fisica Corpuscular (IFIC) UV-CSIC)
26/09/2006, 16:45
The SemiConductor Tracker (SCT) together with the pixel detector and the Transition
Radiation Tracker (TRT) form the central tracking system of the ATLAS experiment at
the LHC. It consists of single-sided microstrip silicon sensors, which are read out
via binary ASICs based on the DMILL technology and the data are transmitted via
optical fibres. After an overview of the SCT detector layout...
Trevor Vickey
(Univ. of Wisconsin, Madison, Department of Physics)
26/09/2006, 17:10
I present an overview of a read-out driver (ROD) for silicon detectors in the ATLAS
experiment at the Large Hadron Collider (LHC). Two silicon-based ATLAS tracking
systems, referred to as the Pixel Detector and the Semiconductor Tracker (SCT), are
controlled and read-out using a common 9U VME board. A hybrid design of Field
Programmable Gate Arrays (FPGAs) and Digital Signal Processors...
Riccardo Vari
(Istituto Nazionale di Fisica Nucleare (INFN))
26/09/2006, 17:10
The ATLAS experiment uses a system of three concentric Resistive Plate Chambers
detectors layers for the level-1 muon trigger in the air-core barrel toroid region.
The trigger classifies muons within different programmable transverse momentum
ranges, and tags the identified tracks with the corresponding bunch crossing number.
The algorithm looks for hit coincidences within different...
Samuele Antinori
(Department of Physics & INFN Bologna)
26/09/2006, 18:00
The paper presents the design and test of the final prototype of the CARLOS end
ladder board. This board is able to compress data coming from one Silicon Drift
Detector (SDD) front-end electronics and to send them towards the data concentrator
card CARLOSrx in counting room via a 800 MBit/s optical link. The board design faces
several constraints, mainly size (54x49 mm) and radiation...
Alberto Valero
(Instituto de Fisica Corpuscular (IFIC) UV-CSIC)
26/09/2006, 18:00
The setup used in the production of the 38 TileCal Read Out Drivers (RODs) and the
results are described. Firstly we will explain all the hardware and firmware
changes done to the RODs in order to adapt them to the TileCal requirements. Then,
we will describe the procedure to test the RODs and the obtained results.
Stefanos Dris
(Imperial College and CERN)
27/09/2006, 11:20
The potential application of advanced digital communication schemes in a future
upgrade of the CMS Tracker readout optical links is currently being investigated at
CERN. We show experimentally that multi-Gbit/s data rates are possible over the
current 40 MSamples/s analogue optical links by employing techniques similar to
those used in ADSL. The concept involves using...
Orlando Villalobos Baillie
(University of Birmingham)
27/09/2006, 11:20
The ALICE Central Trigger Processor is designed to
process signals
from triggering detectors and send appropriate trigger
signals and
data to participating detectors. The ALICE system
allows dynamic
partitioning of the detector, past-future protection
appropriate to
each detector's electronics, and a number of different
monitoring
and diagnostic functions. The system has now...
Roman Lietava
(University of Birmingham)
27/09/2006, 11:40
In this paper we discuss trigger signals synchronisation and
trigger input alignment in the ALICE trigger system.
The synchronisation procedure adjusts the phase of the input signals
with respect to the local Bunch Crossing (BC) clock and, indirectly,
with respect to the LHC bunch crossing time.
Alignment assures that the trigger signals originating from the same bunch
crossing...
Marian Krivda
(Institute of Experimental Physics, Kosice, Slovakia)
27/09/2006, 12:00
The ALICE silicon pixel detector (SPD) constitutes the two innermost layers of the
ALICE inner tracker system. The SPD contains 10 million pixels organized in 120
detector modules (half staves) connected to the off-detector electronics via
bidirectional optical links. The front-end data streams are processed in 20 readout
modules (Router), based on FPGAs, each carrying three 2-channel...
Cigdem Issever
(University of Oxford)
27/09/2006, 12:10
The readout system of the ATLAS inner detector for SLHC will need to cope with ten
time’s higher radiation doses than the current ATLAS inner detector readout system.
It is an open question of whether the current opto-electronic readout system could be
used at SLHC. We irradiated VCSEL and Si-Pin arrays at a 20 MeV neutron beam up to
the levels expected at SLHC and monitored their...
Ivan Amos Cali
(Universita degli Studi di Bari / CERN)
27/09/2006, 12:20
The ALICE Silicon Pixel Detector (SPD) contains nearly
10^7 hybrid pixel cells. About 2000 parameters and ~50000
DACs must be controlled in real-time during the detector
integration, commissioning and operation. Information on each
channel is stored in a configuration database. Timing and data
management are critical issues. An overview of the SPD detector
control system is presented,...
Kock Kiam Gan
(The Ohio State University)
27/09/2006, 12:35
We study the feasibility of fabricating an optical link for the SLHC ATLAS silicon tracker based on the curret
pixel optical link architecture. The electrical signal between the current pixel modules and the optical modules
is transmitted via micro-twisted cables. The optical signal between the optical modules and the data
acquisition system is transmitted via rad-hard SIMM fibers...
Gianluca Aglieri Rinella
(CERN European Organization for Nuclear Research, Geneva)
27/09/2006, 12:40
The ALICE Silicon Pixel Detector contains 1200 readout chips.
Fast-OR signals indicate the presence of at least one hit in the 8192
pixel matrix of each chip. The 1200 bits are transmitted together with
data on 120 optical links using the G-Link protocol. The Level 0 Pixel
Trigger System extracts and processes them to deliver an input signal
to the Level 0 trigger processor within a...
Paschalis Vichoudis
(CERN)
27/09/2006, 14:15
A plug-in module has been built for reception of optically
transmitted data by
gigabit applications. The optical receiving module is
based on a 12-channel optical
receiver and an FPGA with embedded deserializers. It is
compatible with the G-Link
and Gigabit Ethernet compliant serializer ASIC (GOL)
used by many LHC systems. Due
to its compact design, several of these modules...
Marco Costa
(University of Torino)
27/09/2006, 14:15
The CMS tracker Power Supply System is made out of 2000 power supply modules where LV
and HV channels are grouped together.
A dedicated quality assurance plan, using a complex, remoted controlled Test
Fixture, has been developped in collaboration between INFN-Torino and CAEN spa to
test each single channel during and after production.
Details on the test procedure and results that have...
Andrea Triossi
(Sez. INFN di Padova Italy)
27/09/2006, 14:40
PCI Express is a new I/O technology for desktop,
mobile, server and communications platforms designed
to allow
increasing levels of computer system performance. The
serial nature of its links and the packet based protocols
allows an easy geographical decoupling of a peripheral
device. We have investigated the possibility of using an
optical
physical layer for the PCI Express,...
Zbigniew Hajduk
(Institute of Nuclear Physics PAN - Cracow, Poland and CERN Geneva)
27/09/2006, 15:05
We present a low voltage power supply system which has to deliver to the front end
electronics of the ATLAS TRT detector ca. 24 kW of electrical power over the distance
of 40-50 m (which adds another 24 kW). The system has to operate in magnetic field
and under radiation environment of the LHC experimental cavern. The system has ~ 3000
individual channels which are all monitored and...
Vicente Gonzalez Millan
(Dep. Ingeniería Electrónica - Univ. Valencia)
27/09/2006, 15:30
This presentation aims to describe the architecture of
the final optical
multiplexer
board (also known as preROD) for the TileCal
experiment. The results of the first
VME 6U prototype have led to the definition of the final
block diagram and
functionality of this prototype. Functional description of
constituent blocks and
the state of the work currently undergoing at the...
Ozgur Cobanoglu
(Univ. + INFN)
27/09/2006, 16:20
Poster
In this paper we present an 8 channel full-custom ASIC prototype, named "CMAD",
designed for the readout of the RICH-I detector system of the COMPASS experiment at
CERN.
The task of the chip is amplifying the signals coming from fast multi-anode
photomultipliers and comparing them against a threshold adjustable on-chip on a
channel by channel basis.
CMAD was developed using a...
Georgios Sidiropoulos
(University of Ioannina)
27/09/2006, 16:20
Poster
A programmable random trigger emulation system has
been built for use in high
energy physics, nuclear physics or radiology
experiments. The emulator is based on
the generation of trigger time intervals using a true
random bit generator. The
system is able to work either as a stand alone trigger
emulator or as a plug-in
module for a trigger/readout system.
Emmanuel Vaumorin
(PROSILOG),
Thierry Romanteau
(LLR Polytechnique)
27/09/2006, 16:20
Poster
The ECAL sub detector of the CMS experiment is composed of one barrel and two
endcaps. The crystals of the endcaps are arranged on an X-Y grid. Mapping signal
clusters on to the eta-phi coordinate system required for the trigger therefore
presents a problem. The 48 channels Trigger Concentrator Card (TCC48) is designed to
compute the trigger primitives of the different parts of each...
Guilherme Cardoso
(Fermi National Accelerator Laboratory)
27/09/2006, 16:20
Poster
The Front-End R&D group at Fermilab has been developing pixel hybridized modules and
silicon strip detectors for the past decade for high-energy physics experiments. To
accomplish this goal, one of the activities the group has been working on includes
the development of a high-speed and high-bandwidth data acquisition and test system
to characterize front-end electronics. In this paper,...
Tobias Flick
(Bergische Universitaet Wuppertal)
27/09/2006, 16:20
Poster
The ATLAS detector is one of the LHC experiments going to start data taking in 2007.
The innermost subdetector of ATLAS will be a pixel detector. It consists of 1744
pixel modules which are controlled and read out via optical signals. The off detector
end of the optical link is the Back of Crate card which is performing the
optical-electrical conversion and adopting the timing for the...
Andres Russu
(Astronomy and Space Science Group - ICMUV - University of Valencia)
27/09/2006, 16:20
Poster
The aim of this paper is to present the preliminary background modelling results of
the Miniature X-and Gamma-ray Sensor (MXGS) instrument in the Atmospheric-Space
Interaction Monitor (ASIM). ASIM is an atmosphere event observatory with a wide
energy range (from optical to gamma-ray) foreseen to be located at the external
facility of the Columbus Module at the ISS in 2009.
The model...
Alexander Singovski
(University of Minnesota & CERN)
27/09/2006, 16:20
Poster
The final design of the low voltage power system of the CMS ECAL detector will be presented.
The particular requirements of the ECAL on-detector electronics powering will be discussed
and details of the W-IE-NE-R MARATON system design related to these features will be pointed out.
All tests performed with the ECAL-specific version of the MARATON power supply units will be
summarized. The...
Alexander Singovski
(University of Minnesota & CERN)
27/09/2006, 16:20
Poster
CMS ECAL detector will require more than 400 dense multi-ribbon optical cables, made of
single mode 9 micron quartz fibers, for the data, control and trigger data transfer between
on-detector and off-detector electronics.
Although all cables will be tested before installation, one cannot guarantee no single fiber
damage during the mass cable pooling campaign at the underground area....
Robert Bainbridge
(Imperial College London)
27/09/2006, 16:20
Poster
The CMS micro-strip tracker data acquisition system is based on an analogue front-end ASIC, optical readout
and an off-detector VME board that performs digitization, zero-suppression and data formatting before
forwarding event fragments to the online event-building farm. Sophisticated “commissioning” procedures are
required to optimally configure, calibrate and synchronize the 10M...
Géza Székely
(Institue of Nuclear Research, ATOMKI, Debrecen, Hungary)
27/09/2006, 16:20
Poster
The CMS Barrel Muon Alignment System is composed of a series of elements - each of
large quantity - to be calibrated individually and together after assembly. This
requires an approach based on modular control and data acquisition hardware and
software including data validation features during data taking. The measured data
of all calibration steps (including full images) are stored in...
Hans Kristian Soltveit
(University Heidelberg Physikalisches institut)
27/09/2006, 16:20
Poster
The Compressed Baryonic Matter (CBM) experiment is a dedicated heavy-ion experiment
at the future accelerator Facility for Antiproton and Ion Research (FAIR), in
Darmstadt.
A Fast Transition Radiation detector will be part of this experiment. The high
reaction rates up to 10^7 event s^-1 require electronics with fast shaping time.
A preamplifier for the FAST-TRD detector has been...
Farida Fassi
(IFIC- Instituto de Fisica Corpuscular)
27/09/2006, 16:20
Poster
The ATLAS experiment currently under construction at CERN's Large Hadron Collider
presents data processing requirements of an unprecedented scale. ATLAS will accrue
tens of petabytes of data per year, distributed around the world: the collaboration
comprises more than 1800 physicists from 150 institutions in 34 countries. The
Distributed Analysis (DA) system has the goal of enabling ATLAS...
Nigel Smale
(Nuclear Physics Laboratory)
27/09/2006, 16:20
Poster
The F-CSA104 is a low noise, fully integrated, four channel preamplifier
produced in the CMOS 0.6um XFAB XC06 process, which has been developed for the
GERDA experiment. Each channel contains a charge sensitive preamplifier (CSA)
followed by a fast differential line driver for driving a 100 Ohm twisted pair
cable over 10m. It has a measuring sensitivity of 5.8 mV/fC with an expected
ENC...
Marco Boccioli
(European Organization for Nuclear Research (CERN))
27/09/2006, 16:20
Poster
The Time Projection Chamber (TPC) is the core of the ALICE experiment at CERN. The
ALICE TPC is an 88m3 cylinder filled with gas and divided in two drift regions by
the central electrode located at its axial centre.
The drift field is generated by a 100kV power supply. The TPC Very High Voltage
project covers the development of the control system for the power supply.
This paper...
Mikhail Matveev
(Rice University)
27/09/2006, 16:20
Poster
The results of data transmission tests over custom backplane, copper and optical
links at a multiples of the LHC bunch clock frequency are presented. We have
evaluated a parallel data transmission at 80MHz and 160MHz using the GTLP and
LVDS standards as well as serial copper and optical links operating at 3.2Gbps.
Jonathan Emery
(CERN)
27/09/2006, 16:20
Poster
In the frame of the design and development of the beam loss monitoring (BLM) system
for the Large Hadron Collider (LHC) a flexible tester has been developed to qualify
and verify during design and production a data acquisition card. It permits to test
completely the functionalities of the board as well as realizing analog input signal
generation to the acquisition card. The system...
Sam Silverstein
(Stockholm University)
27/09/2006, 16:20
The challenges of producing high-performance and low-latency
realtime systems for LHC have led many groups to design
systems with higher channel density and greater
interconnectivity between modules. Custom backplanes with
2mm Hard Metric connectors provide the high pin counts
necessary for these systems, but also present new problems,
including increased insertion and extraction...
Satish Dhawan
(Yale University)
27/09/2006, 16:20
Poster
We are exploring various way of employing 48 volt DC-DC converters capable of
running in high magnetic fields and /or radiation environments of the SLHC and ILC
detectors. Tradeoffs with respect to voltage conversion ratios, currents
deliverable, radiation, and magnetic field are explored.
Rafael Antunes Nobrega
(Universita di Roma I "La Sapienza")
27/09/2006, 16:20
Poster
The Muon Detector of LHCb will be equipped with about
1380 Multi-Wire Proportional
Chambers. Within the Framework of the CERN Control
System Project, using PVSS as
the main tool, we are developing an instrument to
manage such a system. Adjustment
and monitoring of High and Low Voltage power
supplies, on-line diagnostics and fine
tuning of the Front-End read-out devices, data...
Pavel Weber
(Kirchhoff-Institut fur Physik (KIP))
27/09/2006, 16:20
Poster
The Pre-Processor Multi-Chip Module (PPrMCM) is the main processing block of the
Pre-Processor System in the ATLAS Level-1 Calorimeter Trigger. The PPrMCM holds a
dedicated signal-processing ASIC and a Phos4 timing-chip together with seven
commercial dice mounted on the substrate. Those are four FADCs and three
LVDS-serialisers.
The PPrMCM holds the main functionality of the...
Diogo Nunes Caracinha
(Faculdade de Ciencias)
27/09/2006, 16:20
Poster
The interface between the ATLAS Central Trigger Processor (CTP) and the sub-
detectors read-out systems is done through the Local Trigger Processor modules.
These modules allow each sub-system to either run in global mode when it gets the
timing and trigger signals from the CTP or in local mode when it handles locally
its trigger and timing signals. During the commissioning phase of the...
Massimo Manghisoni
(Università degli Studi di Bergamo)
27/09/2006, 16:20
Poster
Deep sub-micron CMOS technologies are widely used for the implementation of front-end
electronics in various detector applications. The IC designers’ effort is presently
shifting to 130 nm CMOS technologies, or even to the next technology node, to
implement readout integrated circuits for silicon strip and pixel detectors, in view
of future HEP applications. In this work the results of...
Ulrich Trunk
(Max-Planck-Institut f. Kernfphysik)
27/09/2006, 16:20
Poster
For a new generation of 2-D neutron detectors developed in the framework of the EU
NMI3 project DETNI [8], the 128-channel frontend chip n-XYTER has been developed. To
facilitate the reconstruction of single neutron incidence points, the chip has to
provide a spatial coordinate (represented by the channel number), as well as time
stamp and amplitude information to match the data of x- and...
Magali Magne
(Laboratoire de Physique Corpusculaire de Clermont-Ferrand (LPC))
27/09/2006, 16:20
Poster
The GPL board is an optical pattern generator for the L0 Decision Unit (L0DU). Its
design is based on three FPGAs in BGA package which can send 24*16bits @ 80 MHz via
24 optical fiber link running at 1.6 Gb/s. One FPGA is used for the control of the
board, via USB or through L0DU, and two processing FPGAs are used to control the
optical channel. Each processing FPGA controls twelve...
Thijs Wijnands
(CERN)
27/09/2006, 16:20
Poster
A statistical summary on 6 years radiation testing for the
LHC machine and
experiments will be presented. The data shows that radiation
tolerance assurance to
cumulative damage effects was taken into account as an
engineering constraint in a
rather early stage in the project. The issue of Single Event
Errors was only
recognized as major issue at a much later stage in the
project...
Pietro Antonioli
(INFN - sezione di Bologna)
27/09/2006, 16:20
Poster
The read-out modules of the ALICE Time-of-flight (TOF) system
will be hosted in custom VME crates near the apparatus in a moderately
hostile environment.
Commercially available options to provide remote VME connection to the
crate have been considered to provide slow control functionalities.
The main slow control channel will be implemented through an optical
link based on the...
Ervin Denes
(KFKI Research Institute for Particle and Nuclear Physics)
27/09/2006, 16:20
Poster
The ALICE Detector Data Link (DDL) is a high-speed optical link designed to
interface the readout electronics of ALICE sub-detectors to the DAQ computers. The
Source Interface Unit (SIU) of the DDL will operate in radiation environment. Tests
showed that configuration loss of SRAM-based FPGA devices used on the prototype of
DDL SIU card was not acceptable. We developed a new version of...
Gregory Michiel Iles
(European Organization for Nuclear Research (CERN))
27/09/2006, 16:20
Poster
A revised design of Global Calorimeter Trigger (GCT) has
been implemented. The
primary function of the GCT is to process the Regional
Calorimeter Trigger (RCT)
data and transmit a summary to the Global Trigger
(GT) which computes the First
Level Trigger Accept (L1A) decision. The GCT must also
transmit a copy of the RCT
and GCT data to the CMS DAQ. This paper presents an...
Pablo Vazquez Regueiro
(Universidad de Santiago de Compostela)
27/09/2006, 16:20
Poster
The Inner Tracker of the LHCb experiment is a silicon microstrip detector consisting
of 336 detector modules with either one or two sensors. The module production is now
underway and we present here the setup employed for module testing during the
production. The setup is based in the same electronics that will e used in the final
experiment. We perform burning and ageing tests with...
Alexandra Dana Oltean Karlsson
(Polytechnic Institute of Bucharest/CERN)
27/09/2006, 16:20
Poster
LHC detectors and future experiments will produce very large amount of data that
will be transferred at multi-Gigabit speeds. At such PCB data rates, signal-
integrity effects become important and traditional rules of thumb are no longer
enough for the design and layout of the traces.
Simulations for signal-integrity effects at board level provide a way to study and
validate several...
Jose Torres Pais
(Dept. Ingenieria Electronica-Universidad de Valencia)
27/09/2006, 16:20
Poster
The Optical Multiplexer Board is a card included in the TileCal Data Acquisition
System; it is designed to receive two optical fibers with same data from front-end
boards and decided which has correct data.
Inside this card we have different transmission lines that need to be studied;
signal integrity problems such as signal delay, reflection, distortion and coupling
should be...
Jim Brooke
(H.H. Wills Physics Laboratory)
27/09/2006, 16:20
Poster
The CMS Global Calorimeter Trigger (GCT) control and
test software is described. An
object-oriented model of the GCT hardware, based on
the CMS Hardware Access Library
(HAL), was written in C++. The SWIG software interface
generator was then used to
produce a python interface to the model. This allows
the hardware to be controlled
from a python script or shell, providing a flexible...
Ankush Mitra
(Institute of Physics, Academia Sinica, Taipei, Taiwan)
27/09/2006, 16:20
Poster
The CDF Run II Silicon detector is one of the largest operating Silicon detectors in
high energy physics. It has 6m2 of Silicon sensors with 722,432 channels read out by
5456 chips. The Silicon detector allows precision tracking, vertexing and is used in
the hardware displaced vertex trigger.
The CDF silicon detector had a very challenging commissioning period of 18 months.
However...
Lax Ignazio
(INFN Bologna-LHCb)
27/09/2006, 16:20
Poster
This report presents the boards developed for the optical data transmission of the
calorimeter system of the LHCb experiment and test results. We developed two types
of transmission boards: the single-channel and the multi-channel ones. Multi-
channel boards can be equipped with a variable number of transmitters, depending on
the need, with a maximum allowed of 12 channels. Each optical...
Claudio Arnaboldi
(Sezione di Milano dell'INFN and Dipartimento di Fisica dell'Università di Milano-Bicocca, P.za della Scienza 3, Milano I-20126, Italy)
27/09/2006, 16:20
Poster
We present the High Voltage, HV, distribution system for the Hybrid Photon
Detectors (HPDs) of RICH1 and RICH2, at LHCb (484 HPDs in total). The HVs ( -20 kV,
-19.7 kV and -16.4 kV) are supplied by printed circuit boards specially developed
to prevent electrostatic discharges and/or corona effects using the limited
available volume of the HPD arrays. The circuits that will be presented...
Anton Taurok
(Institut fuer Hochenergiephysik (HEPHY)),
Manfred Jeitler
(Institut fuer Hochenergiephysik (HEPHY))
27/09/2006, 16:20
Poster
The trigger of the CMS experiment consists of two
stages: the first stage,
or Level-1 Trigger is implemented in hardware
processors while the second
stage, or High-level Trigger is implemented in software
running on a
computer farm. The Level-1 Trigger has to deliver a
trigger decision for
each LHC bunch crossing, i.e. at a rate of 40 MHz. The
Level-1 Global
Trigger uses objects...
Christos Zamantzas
(CERN)
27/09/2006, 16:20
Poster
The strategy for machine protection and quench prevention of the Large Hadron
Collider (LHC) at the European Organisation for Nuclear Research (CERN) is presently
based on the Beam Loss Monitoring (BLM) system. At each turn, there will be several
thousands of data to record and process in order to decide if the beams should be
permitted to continue circulating or their safe extraction is...
Markus Friedl
(HEPHY Vienna)
27/09/2006, 16:20
Poster
The APV25 front-end chip for the CMS Silicon Tracker has a peaking
time of 50ns, but confines the signal to a single clock period
(=bunch crossing) with its internal deconvolution filter.
This method requires a beam-synchronous clock and thus cannot be
applied to a (quasi-) continuous beam. Nevertheless, using the
multi-peak mode of the APV25, where 3 (or 6,9,12,...) consecutive
shaper...
Ping Gui
(Southern Methodist University)
27/09/2006, 16:20
Poster
Silicon-On-Sapphire (SOS) CMOS technology has been attractive to radiation tolerant
applications. The Sapphire substrate eliminates single-event latch-up (SEL) and
reduces the possibility of single event upset (SEE), but the back-channel leakage
current could cause problems to circuitry made in this technology. To better
understand the radiation effects in this technology and evaluate its...
Manfred Muecke
(CERN)
27/09/2006, 16:20
Poster
We show an alternative design approach for signal processing algorithms implemented
on FPGAs. Instead of writing VHDL code for implementation, and maintaining a C-model
for algorithm evaluation, we derive both models from one common source allowing
generation of synthesizeable VHDL and cycle- and bit-accurate C-Code.
We have tested our approach on the LHCb VELO pre-processing...
Jan Knopf
(Ruprecht-Karls-Universitat Heidelberg)
27/09/2006, 16:20
Poster
The OTIS-TDC is a 32 channel time to digital converter chip developed in Heidelberg
for the LHCb Outer Tracker experiment.
Designed in a 0,25 $\mu m$ CMOS process, it can measure times with a resolution
better than 1\,ns.
As the chip is directly mounted to its board, the test have to be performed on the
wafer itself.
As the testing period for 7\,000 chips was only three weeks, many test...
Franco MALOBERTI
(University of Pavia)
28/09/2006, 09:45
Modern and future ultra-deep-submicron technologies
make challenging the analog design especially when
power consumption must match digital counterparts.
The decrease of the supply voltage reduces the voltage
headroom in analog circuits, the gate leakage current
increases, the voltage gain decreases in planar bulk
transistors, 1/f noise deteriorate when using new high-
k gate...
Gilles Mahout
(The University of Birmingham)
28/09/2006, 10:55
The Level-1 Calorimeter Trigger is a digital pipelined system, reducing the 40 MHz
bunch-crossing rate down to 75 kHz. It consists of a Preprocessor , a Cluster
Processor (CP), and a Jet/Energy-sum Processor (JEP). The CP and JEP receive
digitised trigger-tower data from the Preprocessor and produce electron/photon, tau,
and jet trigger multiplicities, total and missing transverse...
Jean-Francois Genat
(CNRS/IN2P3/LPNHE)
28/09/2006, 10:55
For the years to come, Silicon strips detectors will be read using the smallest
available integrated technologies for room, transparency, and power considerations.
CMOS, Bipolar-CMOS and Silicon-Germanium are presently offered in deep-submicron
(250 down to 90nm) at affordable cost through worldwide integrated circuits
multiproject centers. As an example, a 180nm CMOS readout prototype...
Tobias Henss
(Univerity of Wuppertal)
28/09/2006, 11:20
The innermost part of the ATLAS experiment will be a
pixel detector, built around
1750 individual detector modules. To operate the
modules, readout electronics and
other detector components, a complex power supply
and control system is necessary.
The unique power, grounding and control requirements
are described, along with the
custom made components of our power and control...
Belen Salvachua
(IFIC (UV - CSIC))
28/09/2006, 11:40
The hadronic Tile Calorimeter of ATLAS generates
~10000 digitized pulses of 10-bit
samples spaced in time 25 ns. In order to read-out and
process these data the Read
Out Driver boards (RODs) are equipped with real time
fixed-point Digital Signal
Processors. The processed information is sent to the
second level trigger.
This paper explains the performance of an algorithm to...
Maurice Garcia-Sciveres
(Lawrence Berkeley National Lab),
Robert Ely
(Lawrence Berkeley National Lab)
28/09/2006, 11:45
We present the results of irradiation tests of a 0.13um test chip containing ATLAS
pixel analog front end circuits and various types of memory cells. The irradiations
were carried out at the LBNL 88” cyclotron with 50 MeV/c protons and 16 MeV/c light
ions for SEU studies. The front end circuits perform well up to the highest dose
achieved at the moment, which is 1E15 p/cm^2. The linear...
Domenico Lo Presti
(CATANIA UNIVERSITY - PHYSICS DEPARTMENT)
28/09/2006, 12:00
The work described here has been developed in the
context of the NEMO Collaboration with the aim of
studying and designing a front-end electronics for the
Optical Modules, which contain the telescope optical
sensors, as a full-custom Very Large Scale Integration
ASIC. The solution has a multitude of advantages.
The most important are low power consumption and
the preanalysis and...
Giulia Papotti
(CERN (PH-MIC) and Universita degli Studi di Parma)
28/09/2006, 12:10
This paper presents an ASIC implementing the line
encoding scheme to be used in the
GBT system, a multi-gigabit optical link designed for use
in future luminosity
improvements of the LHC. A general overview of issues
specific to optical links
placed in radiation environments is given, and the
required properties of the line
encoding discussed. A scheme that preserves the...
Hirokazu Ishino
(Tokyo Institute of Technology)
28/09/2006, 12:35
We are developing a monolithic radiation pixel detector using
silicon on insulator (SOI) with a commercial
0.15um fully-depleted-SOI technology
and a Czochralski high resistivity silicon substrate in place of a
handle wafer.
Nine types of SOI TEG chips
with a size of 2.5 x 2.5 mm^2 consisting of 20um pixels
have been designed and manufactured.
The I-V measurement, a laser light...
Ricardo Marco-Hernández
(Instituto de Física Corpuscular (IFIC), Universidad de Valencia-CSIC, Valencia, Spain.),
Salvador Martí i García
(Instituto de Física Corpuscular (IFIC), Universidad de Valencia-CSIC,Valencia, Spain.)
28/09/2006, 12:40
A portable readout system for silicon microstrip sensors
is currently being
developed. This system uses a front-end readout chip,
which was developed for the
LHC experiments. The system will be used to
investigate the main properties of this
type of sensors and their future applications.
The system is divided in two parts: a daughter board
and a mother board. The first
one...
Geoff HALL
(Imperial College of London)
28/09/2006, 14:00
Andy BUTTERWORTH
28/09/2006, 14:15
Mauricio Garcia-Sciveres
(Lawrence Berkeley National Lab),
Robert Ely
(Lawrence Berkeley National Lab)
28/09/2006, 14:35
We present results from a capacitor charge pump DC-
DC converter prototype using
0.35um HV-CMOS technology fabricated in April 2006.
The purpose of this prototype is
to test the switch technology both for achievable
efficiency and for radiation
tolerance. The IC of this test device contains only
switches, with all clocks being
externally supplied and driven and the capacitors also...
28/09/2006, 15:00
Paulo MOREIRA
28/09/2006, 15:55
28/09/2006, 16:25
Francois VASEY
(CERN)
28/09/2006, 16:45
28/09/2006, 17:10
John Jones
(Imperial College London)
29/09/2006, 11:50
We report on recent work on the design of a pixel detector for CMS at the Super-LHC.
This work builds on previous studies on a tracking detector capable of providing
track stubs to be used in the Level-1. We now focus on the use of two layers of
tracking, each comprising stacks of pixel sensors with 20x50x10μm3 pitch (θxφxr) and
separated by a few millimetres. Preliminary work on track...