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	Precision measurement of 0.5 gev-3 tev electrons and positrons using the ams electromagnetic calorimeter
	Kounine, A.1; Weng, Z.1; Xu, W.1; Zhang, C.2
刊名	Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment
	2017-10-11
卷号	869页码:110-117
关键词	Cosmic rays Calorimeter Energy reconstruction
ISSN号	0168-9002
DOI	10.1016/j.nima.2017.07.013
通讯作者	Xu, w.(weiwei.xu@cern.ch)
英文摘要	The alpha magnetic spectrometer, ams, is successfully collecting data on the international space station since its installation on may 19, 2011. one of the main objectives of ams is the precision measurement of high energy cosmic ray electrons and positrons. the key detector for this measurement is the electromagnetic calorimeter. reconstruction of electrons and positrons in the calorimeter uses a 3-dimensional shower parametrization, which accounts for the detector specifics: finite size of the calorimeter, non-uniform efficiency of the signal collection, and saturation effects due to the electronics and due to high energy density in the active calorimeter elements. this technique provides ams with a precision energy measurement of electrons and positrons up to several tev as well as an excellent rejection of the proton background. (c) 2017 elsevier b. v. all rights reserved.
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
WOS类目	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Nuclear ; Physics, Particles & Fields
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000409530200015
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177005
专题	高能物理研究所
通讯作者	Xu, W.
作者单位	1.MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA 2.Chinese Acad Sci, IHEP, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Kounine, A.,Weng, Z.,Xu, W.,et al. Precision measurement of 0.5 gev-3 tev electrons and positrons using the ams electromagnetic calorimeter[J]. Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment,2017,869:110-117.
APA	Kounine, A.,Weng, Z.,Xu, W.,&Zhang, C..(2017).Precision measurement of 0.5 gev-3 tev electrons and positrons using the ams electromagnetic calorimeter.Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment,869,110-117.
MLA	Kounine, A.,et al."Precision measurement of 0.5 gev-3 tev electrons and positrons using the ams electromagnetic calorimeter".Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment 869(2017):110-117.

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