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Extension of photomultiplier tube dynamic range for the LHAASO-KM2A electromagnetic particle detectors
LHAASO Collaboration
2015
发表期刊NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
卷号781页码:34-38
通讯作者吕洪魁
摘要In the Large High Altitude Air Shower Observatory (LHAASO), the 1 km(2) array (KM2A) requires linear measurement of optical intensity with a wide dynamic range. Over 5000 photomultiplier tubes (PMTs) are employed in this experiment and developed as "two outputs" device (anode and dynode) to meet the relevant requirements. In this study, the linearity of the anode and the eighth dynode (DY8), which is limited by space charge effects and mainly related to the relative dynode voltage ratios of the PMT divider, is examined. A voltage divider for the Hamamatsu R11102 PMT is designed and a dramatically enhanced linearity is demonstrated. Test results show that this design can cover a wide dynamic range from 20 to 2 x 10(5) photoelectrons and achieve a peak anode current of 380 mA at a PMT gain of 10(5), which satisfies the requirements of KM2A electromagnetic particle detectors. The circuit design has been successfully simulated using the simulation software Multisim. The details of PMT performance tests and simulations are described. (C) 2015 Elsevier B.V. All rights reserved.
文章类型Article
关键词Photomultiplier tube Linearity optimization Dynode output Cosmic ray detection
学科领域Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy
DOI10.1016/j.nima.2015.01.085
收录类别SCI ; EI ; CA
WOS类目Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Particles & Fields ; Spectroscopy
WOS记录号WOS:000351063000006
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228219
专题粒子天体物理中心
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LHAASO Collaboration. Extension of photomultiplier tube dynamic range for the LHAASO-KM2A electromagnetic particle detectors[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2015,781:34-38.
APA LHAASO Collaboration.(2015).Extension of photomultiplier tube dynamic range for the LHAASO-KM2A electromagnetic particle detectors.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,781,34-38.
MLA LHAASO Collaboration."Extension of photomultiplier tube dynamic range for the LHAASO-KM2A electromagnetic particle detectors".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 781(2015):34-38.
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