In-flight energy calibration of the space-borne Compton polarimeter POLAR

doi:10.1016/j.astropartphys.2018.07.009

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	In-flight energy calibration of the space-borne Compton polarimeter POLAR
	Xiong SL(熊少林); Kong, SW; Li, L; Li, ZH; Liu, JT; Liu, X; Marcinkowski, R; Rybka, DK; Pohl, M; Shi, HL
刊名	ASTROPARTICLE PHYSICS
	2018
卷号	103 页码:74-86
关键词	Gamma-ray burst Polarisation POLAR In-flight calibration
ISSN号	0927-6505
DOI	10.1016/j.astropartphys.2018.07.009
文献子类	Article
英文摘要	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.
电子版国际标准刊号	1873-2852
WOS关键词	GAMMA-RAY BURSTS ; MISSION
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
WOS记录号	WOS:000445718600010
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286368]
专题	高能物理研究所_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
通讯作者	Xiao HL(肖华林)
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Xiong SL,Kong, SW,Li, L,et al. In-flight energy calibration of the space-borne Compton polarimeter POLAR[J]. ASTROPARTICLE PHYSICS,2018,103:74-86.
APA	熊少林.,Kong, SW.,Li, L.,Li, ZH.,Liu, JT.,...&Kramert, R.(2018).In-flight energy calibration of the space-borne Compton polarimeter POLAR.ASTROPARTICLE PHYSICS,103,74-86.
MLA	熊少林,et al."In-flight energy calibration of the space-borne Compton polarimeter POLAR".ASTROPARTICLE PHYSICS 103(2018):74-86.