HIRFL-CSRe是兰州重离子加速器装置HIRFL(heavy ion research facility in Lanzhou)的后加速冷却储存环CSR(cooler storage ring)系统中的实验环部分,其中的二极铁磁铁对电源的性能提出了更高的要求。为满足此类磁铁电源高精度指标需求...HIRFL-CSRe是兰州重离子加速器装置HIRFL(heavy ion research facility in Lanzhou)的后加速冷却储存环CSR(cooler storage ring)系统中的实验环部分,其中的二极铁磁铁对电源的性能提出了更高的要求。为满足此类磁铁电源高精度指标需求并解决其技术难点,研制高精度直流电源装置。电源主回路采用多重化电路拓扑结构,控制部分采用多变量耦合的数字模拟混合控制策略,工艺结构采用功率变换器等关键部件标准化设计。实验结果表明,电源输出电流稳定度≤5×10^(-6)/8 h,电源的其他性能指标也达到了加速器物理设计的要求,并通过了验收测试。展开更多
The Cooling Storage Ring of the Heavy Ion Research Facility in Lanzhou(HIRFL-CSR)was constructed to study nuclear physics,atomic physics,interdisciplinary science,and related applications.The External Target Facility(...The Cooling Storage Ring of the Heavy Ion Research Facility in Lanzhou(HIRFL-CSR)was constructed to study nuclear physics,atomic physics,interdisciplinary science,and related applications.The External Target Facility(ETF)is located in the main ring of the HIRFL-CSR.The gamma detector of the ETF is built to measure emitted gamma rays with energies below 5 MeV in the center-of-mass frame and is planned to measure light fragments with energies up to 300 MeV.The readout electronics for the gamma detector were designed and commissioned.The readout electronics consist of thirty-two front-end cards,thirty-two readout control units(RCUs),one common readout unit,one synchronization&clock unit,and one sub-trigger unit.By using the real-time peak-detection algorithm implemented in the RCU,the data volume can be significantly reduced.In addition,trigger logic selection algorithms are implemented to improve the selection of useful events and reduce the data size.The test results show that the integral nonlinearity of the readout electronics is less than 1%,and the energy resolution for measuring the 60 Co source is better than 5.5%.This study discusses the design and performance of the readout electronics.展开更多
文摘HIRFL-CSRe是兰州重离子加速器装置HIRFL(heavy ion research facility in Lanzhou)的后加速冷却储存环CSR(cooler storage ring)系统中的实验环部分,其中的二极铁磁铁对电源的性能提出了更高的要求。为满足此类磁铁电源高精度指标需求并解决其技术难点,研制高精度直流电源装置。电源主回路采用多重化电路拓扑结构,控制部分采用多变量耦合的数字模拟混合控制策略,工艺结构采用功率变换器等关键部件标准化设计。实验结果表明,电源输出电流稳定度≤5×10^(-6)/8 h,电源的其他性能指标也达到了加速器物理设计的要求,并通过了验收测试。
基金supported by the National Natural Science Foundation of China (Nos. 12222512, 12375193, U2031206, U1831206, and U2032209)the Scientific Instrument Developing Project of the Chinese Academy of Sciences (GJJSTD20210009)+1 种基金the CAS Pioneer Hundred Talent Programthe CAS Light of West China Program
文摘The Cooling Storage Ring of the Heavy Ion Research Facility in Lanzhou(HIRFL-CSR)was constructed to study nuclear physics,atomic physics,interdisciplinary science,and related applications.The External Target Facility(ETF)is located in the main ring of the HIRFL-CSR.The gamma detector of the ETF is built to measure emitted gamma rays with energies below 5 MeV in the center-of-mass frame and is planned to measure light fragments with energies up to 300 MeV.The readout electronics for the gamma detector were designed and commissioned.The readout electronics consist of thirty-two front-end cards,thirty-two readout control units(RCUs),one common readout unit,one synchronization&clock unit,and one sub-trigger unit.By using the real-time peak-detection algorithm implemented in the RCU,the data volume can be significantly reduced.In addition,trigger logic selection algorithms are implemented to improve the selection of useful events and reduce the data size.The test results show that the integral nonlinearity of the readout electronics is less than 1%,and the energy resolution for measuring the 60 Co source is better than 5.5%.This study discusses the design and performance of the readout electronics.
