A MONTE-CARLO ANALYSIS OF THE LIQUID XENON TPC AS GAMMA-RAY TELESCOPE

被引：23

作者：

APRILE, E ^{[1
]}

BOLOTNIKOV, A ^{[1
]}

CHEN, D ^{[1
]}

MUKHERJEE, R ^{[1
]}

机构：

[1] COLUMBIA UNIV,COLUMBIA ASTROPHYS LAB,NEW YORK,NY 10027

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1993年 / 327卷 / 01期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/0168-9002(93)91446-T

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Extensive Monte Carlo modeling of a coded aperture gamma-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.

引用

页码：216 / 221

页数：6

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