Prof. Pier Andrea Mando' (University of Florence and INFN)
7/3/13, 9:30 AM
Welcome address by the Director of the Florence division of INFN
7/3/13, 9:45 AM
Dr Paul Dervan (University of Liverpool)
7/3/13, 9:50 AM
After more than 3 years of successful operation at the LHC, we report on the operation and performance of the ATLAS Semi-Conductor Tracker (SCT) functioning in a high luminosity, high radiation environment. The SCT is constructed of 4088 silicon detector modules, for a total of 6.3 million strips. Each module is designed, constructed and tested to operate as a stand-alone unit,...
Silvia Taroni (Universitaet Zuerich)
7/3/13, 11:05 AM
The CMS silicon tracker is the largest silicon detector ever built. It consists of a hybrid pixel detector with 66 million channels and a 200 m2 silicon strip detector with 10 million read out channels. The presentation describes the operation of this detector during data taking years before the current LHC shutdown, both during proton-proton as well as heavy ion collisions. Results on the...
5. Status of the ATLAS Pixel Detector at the LHC and its performance after three years of operation.
Dr Kerstin Lantzsch (CERN)
7/3/13, 11:30 AM
The ATLAS Pixel Detector is the innermost detector of the ATLAS experiment at the Large Hadron Collider at CERN. The detector provides hermetic coverage with three cylindrical layers and three layers of forward and backward pixel detectors. It consists of approximately 80 million pixels that are individually read out via chips bump-bonded to 1744 n-in-n silicon substrates. In this talk,...
VALENTINA GORI (INFN - Firenze)
7/3/13, 11:55 AM
The CMS tracker is the largest silicon detector ever built, covering 200 square meters and providing an average of 14 high-precision measurements per track. Tracking is essential for the reconstruction of objects like jets, electrons and tau leptons. Track reconstruction is widely used also at trigger level as it improves lepton and jet resolution and allows to pre-identify tau leptons and...
Marco Musich (TO)
7/3/13, 12:20 PM
he CMS all-silicon tracker consists of 16588 modules, embedded in a solenoidal magnet providing a field of B = 3.8 T. The targeted performance requires that the alignment determines the module positions with a precision of a few micrometers. Ultimate local precision is reached by the determination of sensor curvatures, challenging the algorithms to determine about 200k parameters...
Bob Velghe (Université catholique de Louvain, CP3)
7/3/13, 2:45 PM
GigaTracker, the NA62's upstream spectrometer, plays a key role in the kinematically constrained background suppression. It is made of three independent stations, each of which is a six by three cm2 hybrid silicon pixels detector. In order to meet the physics goals of NA62 the pixel hit time resolution must be better than 200 ps. The material budget must be kept less than 0.5 % X0. The 200µm...
Simone Gerardin (Dept. of Information Engineering, University of Padova)
7/3/13, 3:10 PM
GaN and SiC power devices were extensively tested under different types of radiation, in the framework of the APOLLO R&D collaboration, aiming to use these new technologies for designing power supplies for the future LHC experiments upgrades. SiC power MOSFETs were irradiated with gamma-rays, neutrons, protons and heavy ions (Iodine, Bromine) at different energies (20MeV - 550MeV). They...
Prof. K.K. Gan (The Ohio State University)
7/3/13, 3:35 PM
The LHC at CERN is now the highest energy and luminosity collider in the world. Upgrades to the accelerator are currently being planned to further increase the energy and luminosity. The detectors must be upgraded to take advantage of the planned accelerator upgrades. This requires the optical links to transmit data at much higher speed to handle the much increased luminosity. We will present...
Mr Felix Bachmair (ETH Zürich)
7/3/13, 4:25 PM
We report on the fabrication, electrical characterization and particle detection performance of the first prototype of a 3D diamond detector for applications in particle physics. The 3D detector geometry has the advantage of small carrier drift paths, which allows in diamond for nearly full charge collection after large doses of radiation. Polycrystalline and single-crystal CVD diamond...
Dr Stefano Lagomarsino (National Institute of Nuclear Physics (INFN))
7/3/13, 4:50 PM
3D detectors whose electrodes extend perpendicularly to the sensor surface are one of the solution proposed for the challenges of radiation-harsh environments in high energy physics. We report on the fabrication and characterization of prototypes of 3D diamond sensors, which add to the 3D architecture the advantages of diamond as a sensor for tracking purposes. Two different laser sources,...
Mauro Menichelli (PG)
7/4/13, 10:00 AM
In 2017 the current CMS pixel detector will be replaced with an upgraded version due to the following reasons: increased luminosity at reduced bunch spacing ( from 7 x 1033 cm-2 s-1 at 50 ns bunch spacing to 2 x 1034 cm-2 s-1 at 25 ns bunch spacing) in the LHC and radiation damage effects that will significantly degrade the present detector. The new upgraded detector will have higher...
David-Leon Pohl (Physikalisches Institut der Universität Bonn)
7/4/13, 10:25 AM
The upgrades for the ATLAS Pixel Detector will be staged in preparation for high luminosity LHC. The first upgrade for the Pixel Detector will be the construction of a new pixel layer which is currently under construction and will be installed during the first shutdown of the LHC machine, in 2013-14. The new detector, called the Insertable B-layer (IBL), will be installed between the existing...
Saverio Citraro (PI)
7/4/13, 11:20 AM
Modern experiments search for extremely rare processes hidden in much larger background levels. As the experiment complexity, the accelerator backgrounds and luminosity increase we need increasingly complex and exclusive selections. We present results and performances of a new prototype of Associative Memory system, the core of the Fast Tracker processor (FTK). FTK is a real time tracking...
17. Variable resolution Associative Memory optimization and simulation for the ATLAS FastTracker project
Luongo Carmela (INFN Pisa)
7/4/13, 11:45 AM
ATLAS is planning to use a hardware processor, the Fast Tracker (FTK), to perform tracking at the level1 event rate (100 KHz). The most recent prototype of the Associative Memory (AM) chip developed for the ATLAS Fast Tracker includes ternary logic that can store the “don’t care” (DC) value. This feature allows enormous flexibility tuning to the precision of the match for each pattern and...
Dr Teppo Maenpaa (Helsinki Institute of Physics)
7/4/13, 12:10 PM
The CMS Collaboration has launched an extensive R&D program to explore the new generation semiconductor detector technologies capable to face the radiation hardness challenges waiting in the near future. This HPK campaign aims to determine which sensor material, polarity and geometries will work best under the foreseen conditions. The presented beam test results help determining the best...
Stefania Beole' (TO)
7/4/13, 12:35 PM
The upgrade of the ALICE apparatus, particular the installation of an upgraded Inner Tracking System (ITS) is under development. The upgrade strategy is formulated under the assumption that, after the second long shutdown in 2018, the LHC will progressively increase its luminosity with Pb beams eventually reaching an interaction rate of about 50 kHz, i.e. instantaneous luminosities of L = 6 ×...
Dr Elena Rocco (Utrecht University) , Dr gerardus nooren (utrecht university / nikhef)
7/5/13, 10:00 AM
A prototype of an Si-W EM calorimeter was built with Monolithic Active Pixel Sensors as the active elements. With a pixelsize of 30 um it allows digital calorimetry, i.e. the particle’s energy is determined by counting pixels, not by measuring the energy deposited. Although of modest size, only 4 Moliere radii wide, it has 39 million pixels and its calibration appears far from trivial. The...
Mr Tommaso Quagli (II. Physikalisches Institut, JLU Giessen)
7/5/13, 10:25 AM
PANDA is a key experiment of the future FAIR facility. It will study the collisions between an antiproton beam and a fixed proton or nuclear target. The Micro Vertex Detector (MVD) is the innermost detector of the appa- ratus and is composed of four concentric barrels and six forward disks, instrumented with silicon hybrid pixels and double-sided silicon microstrips; its main task is the...
35. Development of a Proton Computed Tomography system based on silicon microstrip detectors and YAG:Ce scintillating crystals
Mara Bruzzi (FI)
7/5/13, 10:50 AM
Proton Computed Tomography (pCT) is a medical imaging technique based on the use of proton beams with energies above 200MeV to directly measure stopping power distributions inside the tissue volume. Prima (PRoton IMAging) is an italian collaboration working on the development of a pCT scanner based on a tracker and a calorimeter to measure single protons trajectory and residual energy. The...
Giovanni Ambrosi (PG)
7/5/13, 11:45 AM
DAMPE (DArk Matter Particle Explore) is a satellite mission of the Chinese Academy of Science dedicated to high energy particle detections in space. The main scientific objective of DAMPE is to detect electrons and photons in the range of 5 GeV-10 TeV with excellent energy resolution. It will also measure the flux of nuclei up to 100 TeV with excellent energy resolution. The DAMPE detector...
15. Development of a homogeneous, isotropic, and high dynamic range calorimeter for the study of primary cosmic rays in space experiments
Oleksandr Starodubtsev (FI)
7/5/13, 12:10 PM
The concept of a homogeneous, isotropic, and high dynamic range calorimeter has been developed and a prototype has been built and tested. The most suitable geometry was found to be cubic and isotropic, so as to detect particles arriving from every direction in space, thus maximizing the acceptance; granularity is achieved by subdividing the cubic volume in smaller cubic crystals. A dual...
Simone Bonechi (S)
7/5/13, 12:35 PM
A new generation of space experiments with very large geometric factors (of the order of 3 - 4 m2sr) are being designed to perform precision studies of the elemental composition of VHE cosmic nuclei and of their spectral features. In the current concept of the Gamma-400 experiment, the charge identification of the incoming particle is performed by a two-layered array of pixelated silicon...
Dr Sergio Scire' Scappuzzo (INFN-LNS)
7/5/13, 3:00 PM
At Laboratori Nazionali del Sud of INFN in Italy, a Tandem Van De Graaf and a Superconducting Cyclotron are in operation since several years, in order to produce ion beams with energy respectively up to 7 MeV/amu and 80 MeV/amu. The “0 degree” multidisciplinary beam line has been set up for irradiation measurements both in air and in vacuum. For radiation damage of electronic devices, to be...
Dr Alfio Pappalardo (LNS- INFN)
7/5/13, 3:25 PM
We propose an innovative system for real time monitoring of short and medium term radioactive waste repositories. Such a system behaves like a cheap scintillating Geiger-Muller counter and it is based on a new kind of gamma mini-sensor, developed at INFN-LNS, assembled with low-cost components: Silicon PhotoMultipliers and scintillating fibers. Front-end electronics and an FPGA-based counting...
14. Extraction of electric field of non-irradiated microstrip detectors using the edge-TCT technique
Dr Marcos Fernandez Garcia (IFCA-Santander)
7/5/13, 3:50 PM
Edge-TCT (where TCT stands for Transient Current Technique) is a new experimental method for segmented detectors where a focused laser beam is injected from the side of the device. Using a beam much smaller than the thickness of the device under study, the drift of the induced charge carriers can be studied as a function of the injection position. Intrinsic properties of the devices can be...
Gian Luigi Alberghi (BO)
7/5/13, 4:15 PM
A Young-Feynman two-slit interference experiment for single electrons was carried out by placing two nanometric slits inside a transmission electron microscope and using a monolithic CMOS detector developed for HEP collider experiments. The fast readout of the sensor allows recording single-electron frames with a maximum time resolution of 0.4 microseconds and obtaining high statistics samples...