Development of ASICs for CdTe pixel and line sensors

Author

Tamura, Ken-ichi ; Hiruta, Tatsuro ; Ikeda, Hirokazu ; Inoue, Hokuto ; Kiyuna, Tatsuya ; Kobayashi, Yoshihito ; Nakazawa, Kazuhiro ; Takashima, Takeshi ; Takahashi, Tadayuki

Author_Institution

Inst. of Space & Astronaut. Sci., Japan Aerosp. Exploration Agency, Kanagawa, Japan

Volume

52

Issue

5

fYear

2005

Firstpage

2023

Lastpage

2029

Abstract

We are developing low noise analog ASICs for hard X-ray and gamma-ray astronomy. They are based on a sub-micron CMOS process. Our design includes a finely-adjustable high-resistance circuit, which, for example, enables us to realize a pole-zero-cancellation in the analog chain. A two-dimensional ASIC with a fast read-out scheme and a one-dimensional ASIC with an improved analog design are developed and verified. With the latter ASIC connected with a CdTe detector, we have obtained a radioactive source spectrum with an energy resolution of 4.6 keV (FWHM) at 59.5 keV.

Keywords

CMOS integrated circuits; X-ray astronomy; application specific integrated circuits; gamma-ray astronomy; high energy physics instrumentation computing; nuclear electronics; position sensitive particle detectors; radioactive sources; readout electronics; semiconductor counters; CdTe line sensors; CdTe pixel sensors; fast read-out scheme; finely-adjustable high-resistance circuit; gamma-ray astronomy; hard X-ray astronomy; low noise analog ASIC; radioactive source spectrum; sub-micron CMOS process; Application specific integrated circuits; Circuit noise; Energy resolution; Gamma ray detection; Gamma ray detectors; Operational amplifiers; Spatial resolution; Spectroscopy; X-ray detection; X-ray imaging; ASIC; CdTe; X-ray; gamma-ray;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2005.856872

Filename

1546547