Abstract
MART-LIME is a coded mask imaging hard X-Ray telescope to be flown onboard the international SPECTRUM RG observatory in early 1996. This instrument, the heart of which is a high-pressure proportional counter sensitive to the 5—150 keV energy range, will be characterised by a limiting sensitivity of about 1 milliCrab for a 105 s observation period. The imaging capability of MART-LIME is provided by a coded-mask aperture system, used in conjunction with the position sensitive detector. The basic pattern of the square coded aperture is a 71 x 73 URA mask (twin prime). This is surrounded by an outer frame comprising 17 and 16 pixels, respectively, on adjacent sides, giving a mask of 105 x 105 pixels in total. With this configuration, a fully coded field-of-view of 5.2° x 5.2° is obtained, whilst a partially coded field-of-view is achieved up to 6°, the acceptance angle of the ferrite collimator. The basic concept of the MART-LIME telescope is presented.
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References
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© 1995 Springer Science+Business Media Dordrecht
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Waldron, L. et al. (1995). The MART-LIME High-Energy Telescope. In: Bassani, L., Di Cocco, G. (eds) Imaging in High Energy Astronomy. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0407-4_22
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DOI: https://doi.org/10.1007/978-94-011-0407-4_22
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-4182-9
Online ISBN: 978-94-011-0407-4
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