Test bench for fibers of the LHAASO-WCDA time calibration system

doi:10.1088/1748-0221/12/10/P10021

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	Test bench for fibers of the LHAASO-WCDA time calibration system
	LHAASO Collaboration
刊名	JOURNAL OF INSTRUMENTATION
	2017
卷号	12 页码:10021
关键词	Detector alignment and calibration methods (lasers, sources, particle-beams) Cherenkov detectors
ISSN号	1748-0221
DOI	10.1088/1748-0221/12/10/P10021
文献子类	Article
英文摘要	The Water Cherenkov Detector Array (WCDA), which is one of the main components of the Large High Altitude Air Shower Observatory (LHAASO), functions in surveying the northern sky for high-energy gamma ray sources at the energy range around of 100 GeV-30 TeV. The precision of the time measurement for shower particles hitting every detector in the array is directly associated with the detection sensitivity for the sources. The calibration precision of the time offsets among the detector cells should be less than 0.1 ns to obtain less than 0.1 degrees pointing error of the detector to any point source. In this regard, "cross calibration" is employed for the detector array, with 180 bundles of fiber systems guiding the lights of LEDs to each PMT. A test bench comprising fast PMTs and an one-dimensional slide platform is set up in the laboratory to test the fiber bundles. The test bench and the test procedure is described in this paper, and the test results are presented.
WOS关键词	PROJECT
WOS研究方向	Instruments & Instrumentation
语种	英语
WOS记录号	WOS:000414167100021
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284817]
专题	高能物理研究所_粒子天体物理中心
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	LHAASO Collaboration. Test bench for fibers of the LHAASO-WCDA time calibration system[J]. JOURNAL OF INSTRUMENTATION,2017,12:10021.
APA	LHAASO Collaboration.(2017).Test bench for fibers of the LHAASO-WCDA time calibration system.JOURNAL OF INSTRUMENTATION,12,10021.
MLA	LHAASO Collaboration."Test bench for fibers of the LHAASO-WCDA time calibration system".JOURNAL OF INSTRUMENTATION 12(2017):10021.