A high resolution time measurement system with high data transfer rate was designed for the COLTRIMS (Cold Target Recoil-Ion Momentum Spectroscopy) system in Institute of Modern Physics,Chinese Academy of Sciences.It ...A high resolution time measurement system with high data transfer rate was designed for the COLTRIMS (Cold Target Recoil-Ion Momentum Spectroscopy) system in Institute of Modern Physics,Chinese Academy of Sciences.It is used to measure the Time of Flight(TOF) with a high resolution for all 20 channels.Based on the PCI Extensions for Instrumentation(PXI) standard,the readout electronics system consists of one Clock-Trigger fan-out module and four TOF modules.Test results show that the system meets the demands of COLTRIMS,with a time resolution of better than 25 ps and a data transfer rate over 20 MB/s.展开更多
In this paper,we report a clock distribution system for Water Cherenkov Detector Arrays(WCDAs) in Large High Altitude Air Shower Observatory(LHAASO) project.The designed electronics system is of high performance in im...In this paper,we report a clock distribution system for Water Cherenkov Detector Arrays(WCDAs) in Large High Altitude Air Shower Observatory(LHAASO) project.The designed electronics system is of high performance in implementing the clock distribution among detectors of a large scale of dimension.Based on Serializer/Deserializer(SerDes) and fiber transmission,the clock distribution system is the modules of central back end to distributed front end.The clock distribution system has been evaluated with a two modules system.While all the four SerDes candidates for clock transmission with jitters below 17 ps,the DS92LV16 has a fixed phase relationship between transmission clock and recovered clock,hence its use in LHAASO WCDAs.展开更多
基金Supported by the Knowledge Innovation Program of Chinese Academy of Sciences under Grant No.KJCX2-YW-N27
文摘A high resolution time measurement system with high data transfer rate was designed for the COLTRIMS (Cold Target Recoil-Ion Momentum Spectroscopy) system in Institute of Modern Physics,Chinese Academy of Sciences.It is used to measure the Time of Flight(TOF) with a high resolution for all 20 channels.Based on the PCI Extensions for Instrumentation(PXI) standard,the readout electronics system consists of one Clock-Trigger fan-out module and four TOF modules.Test results show that the system meets the demands of COLTRIMS,with a time resolution of better than 25 ps and a data transfer rate over 20 MB/s.
基金Supported by the Knowledge Innovation Program of Chinese Academy of Sciences(Grant No.KJCX2-YW-N31)
文摘In this paper,we report a clock distribution system for Water Cherenkov Detector Arrays(WCDAs) in Large High Altitude Air Shower Observatory(LHAASO) project.The designed electronics system is of high performance in implementing the clock distribution among detectors of a large scale of dimension.Based on Serializer/Deserializer(SerDes) and fiber transmission,the clock distribution system is the modules of central back end to distributed front end.The clock distribution system has been evaluated with a two modules system.While all the four SerDes candidates for clock transmission with jitters below 17 ps,the DS92LV16 has a fixed phase relationship between transmission clock and recovered clock,hence its use in LHAASO WCDAs.
