ATLAS Liquid Argon Barrel Calorimeter Performance in the 2004 Combined Test-Beam

2007 ◽  
Vol 172 ◽  
pp. 108-110 ◽  
Author(s):  
Stathes Paganis
Keyword(s):  
Liquid Argon ◽  
Test Beam ◽  
Combined Test

scholarly journals Photon reconstruction in the ATLAS Inner Detector and Liquid Argon Barrel Calorimeter at the 2004 Combined Test Beam

2011 ◽  
Vol 6 (04) ◽  
pp. P04001-P04001 ◽  
Author(s):  
E Abat ◽  
J M Abdallah ◽  
T N Addy ◽  
P Adragna ◽  
M Aharrouche ◽  
...  
Keyword(s):  
Liquid Argon ◽  
Test Beam ◽  
Combined Test

scholarly journals A High-Granularity Timing Detector for the Phase-II upgrade of the ATLAS Calorimeter system: detector concept, description and R&D and beam test results

2021 ◽  
Vol 253 ◽  
pp. 11012
Author(s):  
H. Imam
Keyword(s):  
Signal To Noise Ratio ◽  
Liquid Argon ◽  
High Signal ◽  
Test Results ◽  
Forward Region ◽  
Test Beam ◽  
Pile Up ◽  
Flux Increase ◽  
Silicon Sensor ◽  
Better Than

The particle flux increase (pile-up) at the HL-LHC with luminosities of L = 7.5 × 1034 cm−2 s−1 will have a significant impact on the reconstruction of the ATLAS detector and on the performance of the trigger. The forward region and the end-cap where the internal tracker has poorer longitudinal track impact parameter resolution, and where the liquid argon calorimeter has coarser granularity, will be significantly affected. A High Granularity Time Detector (HGTD) is proposed to be installed in front of the LAr end-cap calorimeter for the mitigation of the pileup effect, as well as measurement of luminosity. It will have coverage of 2.4 to 4.0 from the pseudo-rapidity range. Two dual-sided silicon sensor layers will provide accurate timing information for minimum-ionizing particles with a resolution better than 30 ps per track (before irradiation), for assigning each particle to the correct vertex. The readout cells are about 1.3 mm × 1.3 mm in size, which leads to a high granular detector with 3 million channels. The technology of low-gain avalanche detectors (LGAD) with sufficient gain was chosen to achieve the required high signal-to-noise ratio. A dedicated ASIC is under development with some prototypes already submitted and evaluated. The requirements and general specifications of the HGTD will be maintained and discussed. R&D campaigns on the LGAD are carried out to study the sensors, the related ASICs and the radiation hardness. Both laboratory and test beam results will be presented.

scholarly journals Deployment and use of the ATLAS DAQ in the combined test beam

2005 ◽  
Author(s):  
S. Gadomski ◽  
M. Abolins ◽  
I. Alexandrov ◽  
A. Amorim ◽  
C. Padilla-Aranda ◽  
...  
Keyword(s):  
Test Beam ◽  
Combined Test
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