Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-12-31
Nucl.Instrum.Meth. A396 (1997) 350-359
Astronomy and Astrophysics
Astrophysics
17 pages Latex (uses aaspp4.sty) plus 7 postscript figures: available in file figs.tar.gz
Scientific paper
10.1016/S0168-9002(97)00785-7
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 $\times$ 10$^{-4}$ counts cm$^{-2}$ s$^{-1}$ keV$^{-1}$.
Barret Didier
Grindlay Jonathan E.
Lum Kenneth S. K.
Manandhar Raj P.
Mohr Joseph John
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