Title :
Beamtest of non-irradiated and irradiated ATLAS SCT microstrip modules at KEK
Author :
Unno, Y. ; Matuo, T. ; Hashizaki, T. ; Akimoto, T. ; Bernabeu, J. ; Dolezal, Z. ; Eklund, L. ; Hara, K. ; Ikegami, Y. ; Iwata, Y. ; Kato, Y. ; Ketterer, C. ; Kobayashi, H. ; Kohriki, T. ; Kondo, T. ; Koshino, T. ; Ludwig, J. ; Masuda, T. ; Moorhead, G. ;
Author_Institution :
Inst. of Particle & Nucl. Studies, High Energy Accel. Res. Organ., Tsukuba, Japan
Abstract :
Non-irradiated and irradiated ATLAS SCT barrel and forward modules were beamtested with 4 GeV/c pions. Pulse shapes confirmed the peaking time of the amplifier to be 22 ns and deteriorated slightly in the irradiated modules. Median charges saturated around 3.8 fC both in the non-irradiated and irradiated modules. Signal/Noise ratios, using the noises from the in-situ calibration, were > 16 in the non-irradiated (> 150 V), and > 10 in the irradiated (> 300 V) barrel modules. No excess common-mode noise was observed.
Keywords :
amplifiers; calibration; meson effects; nuclear electronics; pions; position sensitive particle detectors; pulse shaping circuits; silicon radiation detectors; timing circuits; 150 V; 22 ns; 300 V; 4 GeV; KEK; Si; amplifier; barrel modules; calibration; common-mode noise; irradiated ATLAS SCT microstrip modules; nonirradiated ATLAS SCT microstrip modules; peaking time; pion beams; pulse shapes; signal-noise ratios; silicon tracker; Colliding beam accelerators; Detectors; Mesons; Microstrip components; Noise shaping; Particle accelerators; Physics education; Pulse amplifiers; Signal to noise ratio; Silicon;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2001 IEEE
Print_ISBN :
0-7803-7324-3
DOI :
10.1109/NSSMIC.2001.1009643
