A Monte Carlo analysis of the liquid xenon TPC as gamma-ray telescope

Details A Monte Carlo analysis of the liquid xenon TPC as gamma-ray telescope A Monte Carlo analysis of the liquid xenon TPC as gamma-ray telescope

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993nimpa.327..216a&link_type=abstract

Nuclear Instruments and Methods in Physics Research Section A, Volume 327, Issue 1, p. 216-221.

Physics

15

Scientific paper

Extensive Monte Carlo modeling of a coded aperture γ-ray telescope based on a high resolution liquid xenon TPC has been performed. Results on efficiency, background reduction capability and source flux sensitivity are presented. We discuss in particular the development of a reconstruction algorithm for events with multiple interaction points. From the energy and spatial information, the kinematics of Compton scattering is used to identify and reduce background events, as well as to improve the detector response in the few MeV region. Assuming a spatial resolution of 1 mm RMS and an energy resolution of 4.5% FWHM at 1 MeV, the algorithm is capable of reducing the background rate expected at balloon altitude by an order of magnitude, thus significantly improving the telescope sensitivity.

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