An electromagnetic physics constructor for low energy polarised X-/gamma ray transport in Geant4

被引：0
作者：
Brown, Jeremy M. C. [1 ,2 ]
Dimmock, Matthew R. [3 ]
机构：
[1] Delft Univ Technol, Dept Radiat Sci & Technol, Delft, Netherlands
[2] Univ Wollongong, Ctr Med Radiat Phys, Wollongong, NSW, Australia
[3] Monash Univ, Dept Med Imaging & Radiat Sci, Melbourne, Vic, Australia
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2021年 / 502卷
关键词：
Geant4; Polarized gamma ray; Compton scattering; X-ray astronomy; Gamma-ray astronomy; Synchrotron radiation facility; COMPTON POLARIMETER; BETHE-HEITLER; GAMMA; BEAMLINE; SCATTERING; VALIDATION; SIMULATION; POGOLITE; ADRESS; MODEL;
D O I：
10.1016/j.nimb.2021.06.009
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The production, application, and/or measurement of polarised X-/gamma rays are key to the fields of synchrotron science and X-/gamma-ray astronomy. The design, development and optimisation of experimental equipment utilised in these fields typically relies on the use of Monte Carlo radiation transport modelling toolkits such as Geant4. In this work the Geant4 "G4LowEPPhysics" electromagnetic physics constructor has been reconfigured to offer a best set of electromagnetic physics models for studies exploring the transport of low energy polarised X-/gamma rays. An overview of the physics models implemented in "G4LowEPPhysics", and it's experimental validation against Compton X-ray polarimetry measurements of the BL38B1 beamline at the SPring-8 synchrotron (Sayo, Japan) is reported. "G4LowEPPhysics" is shown to be able to reproduce the experimental results obtained at the BL38B1 beamline (SPring-8) to within a level of accuracy on the same order as Geant4's X-/gamma ray interaction cross-sectional data uncertainty (approximately +/- 5 %).
引用
收藏
页码：176 / 182
页数：7
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