Title :
Performance evaluation of low-noise analog front-end for semiconductor detectors
Author :
Kishishita, Tetsuichi ; Sato, Goro ; Ikeda, Hirokazu ; Kiyuna, Tatsuya ; Mito, Yoshio ; Takahashi, Tadayuki
Author_Institution :
Inst. of Space & Astronaut. Sci., Japan Aerosp. Exploration Agency, Sagamihara, Japan
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
We report on the recent development of a low-noise analog front-end ASIC for hard X-ray and gamma-ray detectors. The ASIC aims for the readout of strip detectors utilizing silicon and cadmium telluride (CdTe) as detector materials. Each readout channel includes a charge-sensitive amplifier, band-pass filters and sample-and-hold circuit. It also includes a leakage current compensation circuit to accommodate to the variety of solid-state detectors. The equivalent noise level of a typical channel reached 88 e- + 8.1 e-/pF (rms) for a power consumption of 3 mW per channel. We also evaluated the ASIC performances by combining with a CdTe line sensor.
Keywords :
X-ray detection; application specific integrated circuits; gamma-ray detection; leakage currents; readout electronics; semiconductor counters; ASIC; CdTe line sensor; band-pass filters; cadmium telluride; charge-sensitive amplifier; detector materials; equivalent noise level; gamma-ray detector; hard X-ray detector; leakage current compensation circuit; low-noise analog front-end; power consumption; readout channel; sample-and-hold circuit; semiconductor detectors; solid-state detectors; strip detectors; Application specific integrated circuits; Band pass filters; Cadmium compounds; Gamma ray detectors; Leak detection; Leakage current; Semiconductor materials; Silicon; Solid state circuits; Strips; ASIC; CdTe; Gamma-ray; VLSI; X-ray; analog front-end; low noise;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5402222
