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LHAASO观测站中高低压电源模块性能的研究 被引量:2

Study the Module Power Supply's Performance for LHAASO
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摘要 大型高海拔空气簇射观测站( LHAASO )的所有探测器都将在羊八井进行宇宙线探测工作,其工作环境为高海拔(海拔4300 m)、低气压(大气压强0.6 atm)、昼夜温差大(温度-25-40℃)。即便如此,探测器依然要求稳定运行,为了保证光电倍增管的增益变化在5%以内,高压电源模块的温度系数和纹波系数要分别小于0.01%/℃和0.01%。为此,搭建了模拟试验系统,其试验箱中的温度和气压均可控。不同厂家不同型号的电源模块在模拟试验箱中进行了测试,试验结果表明,3个厂家的电源模块均满足要求。 The Large High Altitude Air Shower Observatory ( LHAASO) detectors would be operated at Yangba-jing, under the condition of high altitude (4300m, 0.6atm) and large dynamic temperature variation (from -25°C to 40°C).To keep the gains of the photomultiplier tubes used stable within 5%, it is required that the temperature coefficient and ripple index of the power supplies should be less than 0.01%/C and 0.01%, re-spectively .Different types of power supplies were tested in an environment simulation system , where the tem-perature and air pressure are controllable , three of which meet the requirements and are chosen as the candi-dates .
出处 《核电子学与探测技术》 CAS CSCD 北大核心 2014年第2期231-234,共4页 Nuclear Electronics & Detection Technology
基金 国家自然科学基金项目(10975046) 河北省教育厅基金项目(2009141) 河北师范大学博士基金项目(L2008B04)
关键词 大型高海拔空气簇射观测站(LHAASO) 电源模块 光电倍增管(PMT) 温度系数 纹波系数 Large High Altitude Air Shower Observatory (LHAAS0) power supply Photomultiplier tube(PMT) temperature coefficient ripple index
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