Oleksandr Starodubtsev
(FI)
08/07/2011, 09:30
Semiconductor Detectors
Talk
In these last few years, Silicon Photomultipliers (SiPMs) have become a very popular in the detector research community because of their promising new features.
These novel photo-detectors promise to deliver high quantum efficiency, wide spectral range, low noise coupled to high gains (105-106), and very fast time response. Our group is currently evaluating and designing new devices for...
Dr
Mark Grimes
(University of Bristol)
08/07/2011, 09:50
Tracking Systems
Talk
The luminosity upgrade of the Large Hadron Collider is foreseen to proceed in two phases. An eventual factor-of-ten increase in LHC statistics will have a major impact in the LHC Physics program. However, the HL-LHC as well as offering the possibility to increase the physics potential will create an extreme operating environment for the detectors, particularly the tracking devices and the...
Dr
Stefano Bettarini
(Università di Pisa and INFN)
08/07/2011, 10:10
Tracking Systems
Talk
The SuperB asymmetric e+e- collider has been recently approved
by the Italian Government and within few years with a luminosity two orders of magnitude greater than past B-Factories, it is expected to
start the study of rare B and D meson decays, where New Physics might show up, and lepton flavour violation in tau decays, profiting from polarized beam.
Due to the reduced center of mass...
Dr
Stefano Mersi
(CERN)
08/07/2011, 10:30
Tracking Systems
Talk
LHC is expected to increase its luminosity above the original nominal value of 1034 cm−2s−1, eventually achieving an order of magnitude increase after major upgrades will be performed after 2020. This configuration of the machine is known as High Luminosity-LHC (HL-LHC).
CMS needs a completely new tracking system to maintain adequate performance in the HL-LHC environment and to provide...
Mr
Andreas Ritter
(Max-Planck-Institute for Physics - Semiconductor laboratory)
08/07/2011, 11:20
Talk
For the upgrade of the Belle II detector DEPFET (Depleted p-channel field effect transistor) pixels are foreseen for the two innermost layers of the vertex detector. As a MOS device, the DEPFET is susceptible to ionizing radiation, which will be created near the interaction point.
One effect of ionizing radiation is the build-up of positive charge in the oxide insulation layer near the...
Mr
Benjamin Schwenker
(Universität Göttingen)
08/07/2011, 11:40
Tracking Systems
Talk
The B factories BABAR and Belle made important contributions to our understanding of CP violation and confirmed the CKM mechanism. In more than ten years of successful operation, the Belle experiment at the asymmetric e+e- collider KEKB recorded about 10^9 BBbar decays and achieved a world record luminosity of 2.11x10^34/cm^2s. The Belle II collaboration plans to upgrade the KEKB accelerator...
Dr
Sara Garbolino
(Università di Torino and INFN)
08/07/2011, 12:00
Tracking Systems
Talk
The Gigatracker (GTK) is a hybrid silicon pixel detector developed for NA62, the experiment studying ultra-rare kaon decays at the CERN SPS. Three GTK stations will provide precise momentum and angular measurements on every track of the high intensity NA62 hadron beam with a time-tagging resolution of 150 ps. Multiple scattering and hadronic interactions of beam particles in the GTK has to be...
Mr
Henry Brown
(University of Liverpool)
08/07/2011, 12:20
Talk
LHCb is a dedicated experiment to study new physics in the decays of beauty and charm hadrons at the Large Hadron Collider (LHC) at CERN. The beauty and charm hadrons are identified through their flight distance in the Vertex Locator (VELO), and hence the detector is critical for both the trigger and offline physics analyses. The VELO is the highest resolution vertex detector at the...
Dr
Stephen Gibson
(CERN)
08/07/2011, 12:40
Radiation Effects and Hardness
Talk
The record breaking instantaneous luminosities of 10^33 cm-2 s-1 recently surpassed at the Large Hadron Collider generate a rapidly increasing particle fluence in the ATLAS silicon tracker. As the radiation dose accumulates, the first effects of radiation damage are now observable in the silicon sensors. A regular monitoring program has been conducted and reveals an increase in the silicon...
Mr
Advait Nagarkar
(The Ohio State University)
08/07/2011, 15:00
Talk
We investigate the feasibility of using VCSEL and PIN arrays in the optical links for the planned upgrades of the detectors at the LHC, CERN. We irradiated high-speed VCSEL (Vertical-Cavity Surface-Emitting Laser) and PIN arrays with 24 GeV/c protons at CERN and 300 MeV/c pions at PSI up to the equivalent dose of a few 10^15 1-MeV neq/cm^2. The arrays irradiated were fabricated by Finisar,...
Prof.
K.K. Gan
(The Ohio State University)
08/07/2011, 15:20
Talk
The LHC at CERN is currently the highest energy and luminosity hadron collider. To take advantage of the physics offered by this new frontier, the ATLAS experiment plans to add a new pixel layer to the current pixel detector during the 2013 shutdown. The optical data transmission system will also be upgraded to handle the higher data transmission speed. Two ASICs have been prototyped for this...
Michael Ziolkowski
(University of Siegen, Physics Department, D-57068 Siegen, Germany)
08/07/2011, 15:40
Radiation Effects and Hardness
Talk
A multi-channel optical receiver board housing a PiN array coupled to an amplifier-and-decoding ASIC designed in 130 nm CMOS process for bi-phase-mark encoded input signals, was exposed to a proton beam of 24 GeV/c momentum together with a reference receiver board containing the same ASIC coupled to an electrical input-signal-source instead. The 40 MHz clock and 40 Mbit/s data signals supplied...
Dr
Alberto Stabile
(INFN and University in Milan)
08/07/2011, 16:30
Electronics
Talk
As the LHC luminosity is ramped up to the design level of 1x1034 cm−2 s−1 and beyond, the high rates, multiplicities, and energies of particles seen by the detectors will pose a unique challenge. Only a tiny fraction of the produced collisions can be stored on tape and immense real-time data reduction is needed. An effective trigger system must maintain high trigger efficiencies for the most...
Dr
Matteo Beretta
(Laboratori Nazionali di Frascati (LNF))
08/07/2011, 16:50
Electronics
Talk
The FastTracKer (FTK) is a dedicated hardware system able to perform online fast and precise track reconstruction of full events in the Atlas experiment within an average latency of a few dozen microseconds. It consists of two pipelined processors: the Associative Memory (AM), which finds low precision tracks called “roads”, and the Track Fitter (TF), which refines the track quality with high...
Dr
Yosuke Takubo
(KEK)
08/07/2011, 17:10
Talk
The inner tracker of the ATLAS detector will be replaced at the future upgrade to keep the performance at high luminosity operation. We have been developing super-module concept for the upgrade, based on double-sided silicon strip modules. In the super-module concept, one super-module consists of 12 double-sided modules and one double-sided module has 80 readout ASICs which read 128 strips per...
