Year: 2009
Type: conference-paper
Abstract: HXMT is an X-ray astronomy satellite consisting of three slat-collimated instruments, the High Energy X-ray Instrument (HE), the Medium Energy X-ray Instrument (ME), and the Low Energy X-ray Instrument (LE). HE is sensitive in 20 - 250 keV. It contains 18 individual cylindrical NaI(Tl)/CsI(Na) phoswich modules, each with an area of 283.5 sq cm and a field of view (FOV) of 5.7 deg x 1.1 deg (FWHM) each. ME is sensitive in 5 - 30 keV. It contains 3 individual Si-PIN detector arrays with an FOV of 5.7 deg x 1.1 deg each, and the total collection area is 952 sq cm. LE uses the Swept Charge Device as the detector which is sensitive in 1 - 15 keV. LE also contains 3 individual detector arrays each with two kinds of FOVs, 5.7 deg x 1.1 deg and 5.7 deg x 2.2 deg, so as to study the cosmic X-ray background in this energy band. The total collecting area of LE is 384 sq cm. HXMT will perform a broad band (1 - 250 keV) X-ray all-sky imaging survey with both high sensitivity and high spatial resolution, as well as making pointed observations of X-ray sources to study their broadband spectroscopic and multi-wavelength temporal properties in details. The 3-sigma continuum sensitivity of HXMT is about 0.5 mCrab (@100 keV, 10(exp 5) s). HXMT was proposed in 1994 and is scheduled to be launched around 2010. The designed lifetime of HXMT is 4 years.
Authors: F. J. Lu, Shu Zhang, Bobing Wu, Yong Chen, Xue-Lei Cao, Zhi Zhang, Jingkang Deng, Shuang‐Nan Zhang, Ti-Pei Li
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W982168153