Improvements of the astro-E2 hard X-ray detector (HXD-II)

Author

Kokubun, M. ; Abe, K. ; Ezoe, Y. ; Fukazawa, Y. ; Hong, S. ; Inoue, H. ; Itoh, T. ; Kamae, T. ; Kasama, D. ; Kawaharada, M. ; Kawano, N. ; Kawashima, K. ; Kawasoe, S. ; Kobayashi, Y. ; Kotoku, J. ; Kouda, M. ; Kubota, A. ; Madejski, G.M. ; Makishima, K. ;

Author_Institution

Dept. of Phys., Univ. of Tokyo, Japan

Volume

51

Issue

5

fYear

2004

Firstpage

1991

Lastpage

1996

Abstract

We summarize significant improvements which have been achieved in the development of Astro-E2 Hard X-ray Detector (HXD-II). An expanded energy range and better energy resolution have been achieved from progresses in device materials and redesigning of the front-end electronics. An improved estimation for the detector background in orbit has also been conducted based upon results from our proton irradiation experiment. The sensitivity of HXD-II can be expected to reach an order of 10^-6 [c s^-1 keV^-1 cm^-2].

Keywords

X-ray detection; astronomical instruments; cosmic ray apparatus; gamma-ray detection; nuclear electronics; proton effects; solid scintillation detectors; Astro-E2 Hard X-ray Detector; BGO scintillators; HXD-II; astrophysics; detector background; device materials; energy resolution; front-end electronics; gamma-ray detector; proton irradiation experiment; Astrophysics; Chemicals; Conducting materials; Counting circuits; Energy resolution; Instruction sets; Physics; Protons; X-ray detection; X-ray detectors; $gamma$-ray; Astro-E2; astrophysics; detector; hard X-ray;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2004.832921

Filename

1344273