Monte-Carlo simulations of the expected imaging performance of the EXIST high-energy telescope

S. V. Vadawale; J. Hong; J. E. Grindlay; G. Skinner

doi:10.1117/12.617671

8 September 2005 Monte-Carlo simulations of the expected imaging performance of the EXIST high-energy telescope

S. V. Vadawale, J. Hong, J. E. Grindlay, G. Skinner

Proceedings Volume 5900, Optics for EUV, X-Ray, and Gamma-Ray Astronomy II; 590014 (2005) https://doi.org/10.1117/12.617671
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

EXIST is being studied as the Black Hole Finder Probe, one of the 3 Einstein Probe missions under NASA's Beyond Einstein program. The major science goals for EXIST include highly sensitive full-sky hard X-ray survey in a very wide energy band of 5 - 600 keV. The scientific requirements of wide energy band (10-600 keV for the High Energy Telescope considered for EXIST) and large field of view (approximately 130° × 60° in the current design, incorporating an array of 18 contiguous very large area coded aperture telescopes) presents significant imaging challenges. The requirement of achieving high imaging sensitivity puts stringent limits on the uniformity and knowledge of systematics for the detector plane. In order to accomplish the ambitious scientific requirements of EXIST, it is necessary to implement many novel techniques. Here we present the initial results of our extensive Monte-Carlo simulations of coded mask imaging for EXIST to estimate the performance degradation due to various factors affecting the imaging such as the non-ideal detector plane and bright partially coded sources.

Citation Download Citation

S. V. Vadawale, J. Hong, J. E. Grindlay, and G. Skinner "Monte-Carlo simulations of the expected imaging performance of the EXIST high-energy telescope", Proc. SPIE 5900, Optics for EUV, X-Ray, and Gamma-Ray Astronomy II, 590014 (8 September 2005); https://doi.org/10.1117/12.617671

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