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23 April 2024

» arxiv » astro-ph/9712356

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Simulations and Measurements of the Background Encountered by a High-Altitude Balloon-Borne Experiment for Hard X-ray Astronomy
Kenneth S. K. Lum ; Joseph J. Mohr ; Didier Barret ; Jonathan E. Grindlay ; Raj P. Manandhar ;
Date:	31 Dec 1997
Journal:	Nucl.Instrum.Meth. A396 (1997) 350-359
Subject:	astro-ph
Abstract:	We have modelled the hard X-ray background expected for a high-altitude balloon flight of the Energetic X-ray Telescope Experiment (EXITE2), an imaging phoswich detector/telescope for the 20--600 keV energy range. Photon and neutron-induced contributions to the background are considered. We describe the code and the results of a series of simulations with different shielding configurations. The simulated hard X-ray background for the actual flight configuration agrees reasonably well (within a factor of $sim$ 2) with the results measured on the first flight of EXITE2 from Palestine, Texas. The measured background flux at 100 keV is $sim$ 4 $ imes$ 10$^{-4}$ counts cm$^{-2}$ s$^{-1}$ keV$^{-1}$.
Source:	arXiv, astro-ph/9712356
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