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IEAP - Institute of Experimental and Applied Physics CTU - Czech Technical University in Prague
CTU - Czech Technical University in Prague
Partial tasks  > ATLAS SCT detection modules
ATLAS SCT detection modules

The "ATLAS SCT detection modules" are the Silicon Strip detector modules developed for the Semiconductor Central Tracker (SCT) of the ATLAS Inner Detector (ID). The objectives of this project are (i) to perform mandatory tests with the ATLAS SCT detection modules, (ii) to prepare detection tests for these modules, (iii) to explore possibilities of module utilization in different other experiments.

The ATLAS experiment covers a general-purpose research program oriented on the exploration of proton-proton collisions exploiting the full discovery potential of the Large Hadron Collider (LHC). It has been designed (i) to verify the standard model including the discovery of the Higgs boson and other new gauge bosons linked to the other type of spontaneous symmetry breaking, (ii) to study of physics beyond the standard model (e.g. exploration of super-symetric particles and leptoquarks). The ATLAS detector is an assembly of many detector systems surrounding the interaction point. The interaction point is the place where the beams are head-on colliding. These beams are unpolarized and they determine an axis of cylindrical symmetry. The assembled ATLAS detector may be divided into three three layers. The layer nearest the interaction point is called the Inner Detector (ID)

The ID serves for the reconstruction of particle tracks and their vertex (point where these particles are created). The reconstructed tracks give information about types of the particles, whereas, the vertexes serve for studies of short-living particles. The ID consists of two independent components: the Semiconductor Central Tracker (SCT) and the Transition Radiation Tracker (TRT). The SCT has in turn two independent parts: a vertex detector built from silicon pixel detector module and a tracker detector made of silicon strip detector module.

Each silicon strip detector module consists of two (short module) or four (long module; see figure on right side) silicon sensors which have a trapezoid form and are placed on both sides of the module. In the case of the short module, one sensor is placed on its front side and a second one on its back side. In the case of the long module, two sensors are connected by bonds in a pair and are placed on the front side of the module. The other sensors are on the back side. Each bond of long module connects two strips into one of double length.

The sensors on the front side of each module are turned 40 mrad (cca 2.3 deg.) with respect to the sensors on the back side of the same module. This turning permits position sensitive measurements in two directions. One direction is perpendicular to the strips, the second one is parallel to the strips. The front side of each module is equipped with 768 elementary sensors (strips), therefore, each module has 1536 strips. In total, the SCT forward region will be monitored by more than 1.5 million strips. The modules will cover a total area of 62.1 m2.


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Ocenění Name Author Scientific journal OceněníYear
Integrated USB based readout interface for silicon strip detectors of the ATLAS SCT module Mašek P.; Linhart V.; Granja C.; Pospíšil S.; Husak M. JINST 6 (2011) C12016 2011
Engineering for the ATLAS SemiConductor Tracker (SCT) end-cap Abdesselam A.; Allport P.; Anderson B.; Beneš P.; Beneš J.; Horažďovský T.; Jakůbek J.; Král V.; Linhart V.; Pospíšil S.; Slavíček T.; Solar M.; Sopko V.; et al. JINST 3 P05002, doi: 10.1088/1748-0221/3/05/P05002 2008
Phenomena influencing the precise measurement of particle tracks in the Inner Detector of the ATLAS Experiment (Supervisor: S. Pospisil) Linhart V. Ph.D. Thesis, CTU Prague 2007
The ATLAS semiconductor tracker end-cap module Abdesselam A.; Beneš P.; Horažďovský T.; Kohout Z.; Král V.; Linhart V.; Pospíšil S.; Sopko V.; Sopko B.; Solar M.; Čermák P.; et al. NIM A 575 (2007) 353–389 2007
The silicon microstrip sensors of the ATLAS semiconductor tracker Ahmad A.; Horažďovský T.; Kohout Z.; Král V.; Linhart V.; Pospíšil S.; Solar M.; Sopko B.; et al. NIM A 578 (2007) 98–118 2007
Measurement of neutron induced activation of the SCT end-cap module Linhart V.; Bědajánek I.; Lebel C.; Leroy C.; Pospíšil S.; Štekl I.; Vobecký M. CERN internal report; 02 May 2006, ATL-INDET-PUB-2006-002 2006
Measurements of fast-neutron-induced signals in pad detectors Linhart V.; Bém P.; Gotz M.; Honusek M.; Pospíšil S.; Šimečková E. NIM A 563 (2006) 263–267 2006
Beam tests of ATLAS SCT silicon strip detector modules Campabadal F.; Linhart V.; Pospíšil S.; Štekl I.; et al. NIM A 538 (2005) 384-407 2005
Design and performance of the ABCD3TA ASIC for readout of silicon strip detectors in the ATLAS semiconductor tracker Campabadal F.; Čermák P.; Linhart V.; Pospíšil S.; Štekl I.; et al. NIM A 552 (2005) 292-328 2005
Electronic Tests of Detection Modules for the ATLAS Experiment (Supervisor: V. Linhart) Král V. Master Thesis, CTU Prague 2005
Induced Radioactivity in the Forward Shielding and Semiconductor Tracker of the Atlas Detector Bědajánek I.; Linhart V.; Štekl I.; Pospíšil S.; et al. Radiation Protection Dosimetry (2005), Vol. 116, No. 1-4, pp. 16-18 2005
Mechanical design of SCT component for ATLAS (Supervisor: S. Pospisil) Beneš J. Ph.D. Thesis, Freiburg U & CTU Prague 2004
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