Gros, P. (2017) Characterisation and comparison of event generators for pair conversion: A crucial step for future low energy gamma telescope. Il nuovo cimento C, 40 (3). pp. 1-5. ISSN 1826-9885
|
Text
ncc11395.pdf - Published Version Download (244kB) | Preview |
Abstract
Gamma ray astronomy suffers from a sensitivity gap between 0.1 and 100Mev. With high angular resolution for the electrons, it will also be possible to probe the linear polarisation of the photons. An accurate simulation is necessary to correctly design and compare these detectors. We establish baseline distributions of key kinematic variables as simulated by a 5D, exact down to threshold, and polarised event generator. We compare them to simulations with the low energy electromagnetic models available in Geant4 and in EGS5. We show that different generators give a different picture of the optimal angular resolution of pair telescopes. We also show that, of all the simulations we used, only the full 5D generator describes accurately the angular asymmetry in the case of polarised photons.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 17 Nov 2020 10:03 |
| Last Modified: | 17 Nov 2020 10:03 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/19968 |
Actions (login required)
 |
View Item |
