The gas imaging spectrometer on board ASCA

被引：294

作者：

Ohashi, T

Ebisawa, K

Fukazawa, Y

Hiyoshi, K

Horii, M

Ikebe, Y

Ikeda, H

Inoue, H

Ishida, M

Ishisaki, Y

Ishizuka, T

Kamijo, S

Kaneda, H

Kohmura, Y

Makishima, K

Mihara, T

Tashiro, M

Murakami, T

Shoumura, R

Tanaka, Y

Ueda, Y

Taguchi, K

Tsuru, T

Takeshima, T

机构：

[1] NASA, GODDARD SPACE FLIGHT CTR, GREENBELT, MD 20771 USA

[2] UNIV TOKYO, DEPT PHYS, BUNKYO KU, TOKYO 113, JAPAN

[3] MEISEI ELECT CO, IBARAKI, OSAKA 30101, JAPAN

[4] INST PHYS & CHEM RES, WAKO, SAITAMA 351, JAPAN

[5] JAPAN RADIO CO, KAMIFUKUOKA, SAITAMA 356, JAPAN

[6] INST SPACE & ASTRONAUT SCI, SAGAMIHARA, KANAGAWA 229, JAPAN

[7] FUJITSU LTD, NAKAHARA KU, KAWASAKI, KANAGAWA 221, JAPAN

[8] MAX PLANCK INST EXTRATERR PHYS, W-8046 GARCHING, GERMANY

[9] KYOTO UNIV, DEPT PHYS, SAKYO KU, KYOTO 60601, JAPAN

[10] NASA, GODDARD SPACE FLIGHT CTR, GREENBELT, MD 20771 USA

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 1996年 / 48卷 / 02期

关键词：

instruments; spacecraft; spectroscopy; X-rays; general; spectra;

D O I：

10.1093/pasj/48.2.157

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Gas Imaging Spectrometer (GIS) system on board ASCA is described. The experiment consists of 2 units of imaging gas scintillation proportional counters with a sealed-off gas cell equipped with an imaging phototube. The performance is characterized by the high X-ray sensitivity (from 0.7 keV to over 10 keV), good energy resolution (7.8% FWHM at 6 keV following E(-0.5) as a function of X-ray energy E), moderate position resolution (0.5 mm FWHM at 6 keV with E(-0.5) dependence), fast time resolution down to 61 mu s, and an effective area of 50 mm diameter. The on-board signal processing system and the data transmitted to the ground are also described. The background rejection efficiency of the GIS is reaching the level achieved by the non-imaging multi-cell proportional counters.

引用

页码：157 / 170

页数：14

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