TY  - JOUR
AU  - Ruhr, F. et al
AU  - Escobar, C.
AU  - Miñano, M.
PY  - 2020
DA  - 2020//
TI  - Testbeam studies of barrel and end-cap modules for the ATLAS ITk strip detector before and after irradiation
T2  - Nucl. Instrum. Methods Phys. Res. A
JO  - Nuclear Instruments & Methods in Physics Research A
SP  - 164430
EP  - 6pp
VL  - 979
PB  - Elsevier
KW  - Particle physics
KW  - Tracking detectors
KW  - ATLAS
KW  - HL-LHC
KW  - Test beam
AB  - In order to cope with the occupancy and radiation doses expected at the High-Luminosity LHC, the ATLAS experiment will replace its Inner Detector with an all-silicon Inner Tracker (ITk), consisting of pixel and strip subsystems. In the last two years, several prototype ITk strip modules have been tested using beams of high energy electrons produced at the DESY-II testbeam facility. Tracking was provided by EUDET telescopes. The modules tested are built from two sensor types: the rectangular ATLAS17LS, which will be used in the outer layers of the central barrel region of the detector, and the annular ATLAS12EC, which will be used in the innermost ring (R0) of the forward region. Additionally, a structure with two RO modules positioned back-to-back has been measured, demonstrating space point reconstruction using the stereo angle of the strips. Finally, one barrel and one RO module have been measured after irradiation to 40% beyond the expected end-of-lifetime fluence. The data obtained allow for thorough tests of the module performance, including charge collection, noise occupancy, detection efficiency, and tracking performance. The results give confidence that the ITk strip detector will meet the requirements of the ATLAS experiment.
SN  - 0168-9002
UR  - https://doi.org/10.1016/j.nima.2020.164430
DO  - 10.1016/j.nima.2020.164430
LA  - English
N1  - WOS:000573295200013
ID  - Ruhr_etal2020
ER  -