http://arxiv.org/abs/2201.11461
Polarization detection of X-ray is a non-negligible topic to astrophysical observation. Many polarization detection methods have been well developed for X-ray in the energy range below 10 keV, while the detection at 10-30 keV is rarely discussed. This paper presents a simulation study of a Xe-based Gas Pixel Detector, which can achieve the polarization detection of X-ray at 10-30 keV. To verify the emission angle distribution of photoelectrons, different electromagnetic models in Geant4 were investigated. After a necessary modification by considering the missing factor when sampling the emission angle, good agreement can be achieved. Moreover, the detection capability of 20 keV polarized photons was discussed and the modulation factor could be improved from 16.24% to 43.26% after the modification.
J. Zhang, X. Cai, Y. Huang, et. al.
Fri, 28 Jan 22
28/64
Comments: N/A