TIMING PROPERTIES OF PHILIPS XP2020UR-PHOTOMULTIPLIER

作     者：MOSZYNSKI, M 

作者机构：Centre de Recherches Nuclé aires IN2P3-CNRS / Université Louis Pasteur B.P. 20 F-67037 Strasbourg Cedex France 

出 版 物：《NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT》 (物理学研究中的核仪器与方法，A辑：加速器，分光仪，检测器和相关设备)

年 卷 期：1993年第324卷第1-2期

页      面：269-275页

核心收录：

学科分类：08[工学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 0702[理学-物理学] 

主　　题：Photomultipliers 

摘      要：The timing properties of scintillation counters consisting of small NE111 plastic scintillators coupled to the XP2020UR photomultipliers have been studied in comparison to that based on the XP2020. The time jitter of both the photomultipliers, their photoelectron yield for the NE111 plastics and the time resolution with Co-60 and Na-22 sources were measured. A high time resolution was achieved with the XP2020UR equal to 90 ps for Co-60 (at 1 MeV) and 140 ps for Na-22 (at 290 keV) energy settings, about 30% and 20% better respectively than those observed with the XP2020. The large improvement of the time resolution is due to: 30% lower time jitter, about 25% higher photoelectron yield and for the Co-60 energy settings also to a reduced influence of the space charge effect in the XP2020UR. The normalised time resolution to the photoelectron number, measured with Na-22 source, is better by a factor of 1.14 which corresponds well to the improvement of the time jitter in the new XP2020UR photomultiplier.