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- W2063997584 abstract "A high angular resolution, wide field camera system (WFCS) operating in the 30 to 100 keV band has been proposed for NASA's gamma ray astronomy program. It is intended for long duration balloon flights initially and for deployment in space, eventually. The instrument contains two orthogonal units consisting of a multiple slit collimator and a two-dimensional position sensitive detector. Each unit provides a one-dimensional position. Gamma ray bursts and soft gamma repeaters will be imaged and positioned to a few square arcminutes or better. There will be a net effective area of 500 cm2 (60 keV) and an energy resolution of 4% for spectroscopy of possible cyclotron features. During a two-week balloon flight from Antarctica, the WFCS will simultaneously monitor intensity variations of all hard x-ray sources above the level of 25 milicrabs within its r ster field of view and improve the positions of unidentified objects. When it is deployed in space above the atmosphere attenuation, the WFCS will have five times more sensitivity, a larger band width, and a larger field of view. It will be able to position over one hundred bursts per year. A fine positioning feature can be added to the system by winding wires around the detector and collimator. This embeds an imaging modulation collimator that operates in the 15 to 50 keV band. Simulations suggest that several gamma rays bursts per year could be located with statistical errors as small as 10-2 (arcmin)2." @default.
- W2063997584 created "2016-06-24" @default.
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- W2063997584 date "1989-11-27" @default.
- W2063997584 modified "2023-09-23" @default.
- W2063997584 title "Wide Field Camera System For Precise Positioning Of Gamma Ray Bursts And Monitoring Of Hard X-Ray Sources In The 30 - 100 Kev Band" @default.
- W2063997584 doi "https://doi.org/10.1117/12.962591" @default.
- W2063997584 hasPublicationYear "1989" @default.
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