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Wide field X-ray monitor on board the High Energy Transient Experiment (HETE)

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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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Yoshida, A., Matsuoka, M., Kawai, N. et al. Wide field X-ray monitor on board the High Energy Transient Experiment (HETE). Astrophys Space Sci 231, 463–466 (1995). https://doi.org/10.1007/BF00658671

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  • DOI: https://doi.org/10.1007/BF00658671

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