Wide field X-ray monitor on board the High Energy Transient Experiment (HETE) |
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Authors: | A Yoshida M Matsuoka N Kawai F Tokanai E E Fenimore J J M In 'T Zand M Galassi M Yamauchi K Takagishi I Hatsukade |
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Institution: | (1) The Institute of Physical and Chemical Research (RIKEN), Saitama, Japan;(2) Los Alamos National Laboratory, New Mexico, USA;(3) Miyazaki University, Miyazaki, Japan |
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Abstract: | The High-Energy Transient Experiment (HETE) is designed for the multiwavelengths study of Gamma-Ray Bursts (GRBs) in UV, X-ray and gamma-ray range with three scientific instruments. The X-ray instrument, Wide-field X-ray Monitor (WXM), consists of four units of one-dimensional position sensitive gas proportional counters and two perpendicularly oriented one-dimensional coded apertures. The WXM has a wide FOV of 1.5 steradian together with the capability to locate GRBs with 10 arcmin accuracy, and covers photon energies of 2 to 25 keV with an energy resolution of typically 18 % at 6 keV, measuring wide band spectra together with the gamma-ray spectrometer (FREGATE). The coded X-ray image will be deconvolved on board and the GRB location will be provided to the UV camera within 1 sec . GRB locations will also be broadcast in real time to ground-based observers for follow-up observations. |
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Keywords: | Instruments Gamma-ray bursts X-ray emission |
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