In-flight energy calibration of the space-borne Compton polarimeter POLAR | |
Xiao HL(肖华林)![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
2018 | |
Source Publication | ASTROPARTICLE PHYSICS
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ISSN | 0927-6505 |
EISSN | 1873-2852 |
Volume | 103Pages:74-86 |
Subtype | Article |
Abstract | POLAR is a compact wide-field space-borne detector for precise measurements of the linear polarisation of hard X-rays emitted from gamma-ray burst and solar flares in the energy range of 50 keV to 500 keV. It consists of a 40 x 40 array of plastic scintillator bars used as a detection material. POLAR was launched into a low Earth orbit on-board the Chinese space-lab TG-2 on September 15, 2016. To achieve high accuracies in polarisation measurements it is essential to perform a precise energy calibration both before and during the flight. Such calibrations are performed with four low activity Na-22 radioactive sources placed inside the instrument. Energy conversion factors are related to Compton edge positions from the collinear annihilation photons from the sources. This paper presents the main principles of the in-flight calibration, describes studies of the method based on Monte Carlo simulations and its laboratory verification, and provides some observation results based on the in-flight data analysis. (C) 2018 Elsevier B.V. All rights reserved. |
Keyword | Gamma-ray burst Polarisation POLAR In-flight calibration |
DOI | 10.1016/j.astropartphys.2018.07.009 |
WOS Keyword | GAMMA-RAY BURSTS ; MISSION |
Indexed By | SCI ; EI |
Language | 英语 |
WOS Research Area | Astronomy & Astrophysics ; Physics |
WOS Subject | Astronomy & Astrophysics ; Physics, Particles & Fields |
WOS ID | WOS:000445718600010 |
EI Accession Number | 20183205676101 |
ADS Bibcode | 2018APh...103...74X |
AXRIV CODE | 1710 |
inspireid | 1632416 |
Citation statistics |
Cited Times:4 [INSPIRE]
Cited Times:9 [ADS]
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Document Type | 期刊论文 |
Identifier | http://ir.ihep.ac.cn/handle/311005/286368 |
Collection | 粒子天体物理中心 中国科学院高能物理研究所_中国散裂中子源 |
Corresponding Author | Xiao HL(肖华林) |
Affiliation | 中国科学院高能物理研究所 |
First Author Affilication | Institute of High Energy |
Corresponding Author Affilication | Institute of High Energy |
Recommended Citation GB/T 7714 | Xiao HL,Wu BB,Bao TW,et al. In-flight energy calibration of the space-borne Compton polarimeter POLAR[J]. ASTROPARTICLE PHYSICS,2018,103:74-86. |
APA | 肖华林.,吴伯冰.,鲍天威.,董永伟.,孔思伟.,...&Zwolinska, A.(2018).In-flight energy calibration of the space-borne Compton polarimeter POLAR.ASTROPARTICLE PHYSICS,103,74-86. |
MLA | 肖华林,et al."In-flight energy calibration of the space-borne Compton polarimeter POLAR".ASTROPARTICLE PHYSICS 103(2018):74-86. |
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