A Digital Calorimeter for Dark Matter Search in Space

A novel digital imaging calorimeter is designed for the observation of high energy electrons and gamma rays on the Space Station of China. The MC data shows that the calorimeter has a capability of observing the electrons (without separation between e+ and e−) and the gamma-rays in 30GeV-5TeV with a...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2011-04, Vol.293 (1), p.012038-6
Main Authors: Sun, X L, Lu, J G, Hu, T, Zhou, L, Cai, X, Yu, B X, Fang, J, Xie, Y G, An, Z H, Wang, Z G, Zhang, A W, Xue, Z
Format: Article
Language:English
Subjects:
Angular resolution
China
Dark matter
Digital imaging
Energy distribution
Energy resolution
Energy spectra
Gamma rays
High energy electrons
Line spectra
Physics
Space stations
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel digital imaging calorimeter is designed for the observation of high energy electrons and gamma rays on the Space Station of China. The MC data shows that the calorimeter has a capability of observing the electrons (without separation between e+ and e−) and the gamma-rays in 30GeV-5TeV with a high energy resolution of 4% over 500GeV, a good angular resolution of 0.5 degree over 500GeV, and a high proton rejection power of ∼5×105(95% signal efficiency). The calorimeter has a large geometrical factor of ∼3.3 m2sr (5 sensitive faces) with ∼1T weight. The excellent energy resolution make us can detect any change of the energy spectra and a line signature in the energy distribution, as expected from the dark matter.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/293/1/012038