A Fourier-based algorithm for modelling aberrations in HETE-2's imaging system

被引：1
|
作者：
Schäfer, BM
Kawai, N
机构：
[1] RIKEN, Wako, Saitama 3510198, Japan
[2] Tokyo Inst Technol, Dept Phys, Fac Sci, Meguro Ku, Tokyo 1528551, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 500卷 / 1-3期
关键词：
X-ray astronomy; coded-mask imaging; gamma-ray bursts;
D O I：
10.1016/S0168-9002(03)00300-0
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The High-Energy Transient Explorer, launched in October 2000, is a satellite experiment dedicated to the study of gamma-ray bursts in a very wide energy range from soft X-ray to gamma-ray wavelengths. The intermediate X-ray range (2-30 keV) is covered by the Wide-field X-ray Monitor (WXM), a coded aperture imager. In this article, an algorithm for reconstructing the positions of gamma-ray bursts is described, which is capable of correcting systematic aberrations to approximately 1' throughout the field of view. Functionality and performance of this algorithm have been validated using data from Monte-Carlo simulations as well as from astrometric observations of the X-ray source Scorpius X-1. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：263 / 271
页数：9
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