Purpose In order to avoiding the potential radiation harm caused by X-ray tube to the crew,and meeting the testing requirements for WLSF pad of Calorimeter Cell in the High Energy cosmic-Radiation Detection facility(H...Purpose In order to avoiding the potential radiation harm caused by X-ray tube to the crew,and meeting the testing requirements for WLSF pad of Calorimeter Cell in the High Energy cosmic-Radiation Detection facility(HERD).Method Designed a testing system,which is composed by LED,LYSO crystal,and narrow bandpass filter.The stability of the testing system is validated by conducting long-term measurements of signal amplitudes using a PMT waveform sampling module.Results and conclusions The result showed that the deviation levels of the WLSF Pad’s light output test results are all less than 5%.The linear relationship between the results of testing system and the results obtained with the cosmic ray test has demonstrated the effectiveness of the testing system,which promises the further application in large-scale WLSF pads performance testing.展开更多
Purpose To derive the temperature response of the basic unit of the electromagnetic calorimeter of the high energy cosmic-radiation detection(HERD)facility.Method Tested a method to measure HERD calorimeter cell(HCC)l...Purpose To derive the temperature response of the basic unit of the electromagnetic calorimeter of the high energy cosmic-radiation detection(HERD)facility.Method Tested a method to measure HERD calorimeter cell(HCC)light yield using an ultraviolet Light-Emitting Diode with a wavelength of 300 nm,and established an experimental setup and tested the light yield of the HCC at different temperatures in a thermal chamber.Results and conclusions The result showed that the signal amplitudes variation of the HCC reached up to 10.2% with temperature ranging from 0 to 60℃,if we narrow the temperature range to 0-35℃,the variation was about 3.7% and it showed much better linearity.This result provides a good instruction on the thermal control of the HERD calorimeter(CALO)to improve its performance.展开更多
基金support from the National Natural Science Foundation of China(Grant No.12027803,11875097,11975257)the support from the International Partnership Program of Chinese Academy of Sciences(Grant No.113111KYSB20190020)+2 种基金supported by the National Natural Science Foundation of China(No.12074045 and 62027820)the Natural Science Foundation of Jilin Province(No.20210101408JC,20230101352JC)“111”Project of China(D17017).
文摘Purpose In order to avoiding the potential radiation harm caused by X-ray tube to the crew,and meeting the testing requirements for WLSF pad of Calorimeter Cell in the High Energy cosmic-Radiation Detection facility(HERD).Method Designed a testing system,which is composed by LED,LYSO crystal,and narrow bandpass filter.The stability of the testing system is validated by conducting long-term measurements of signal amplitudes using a PMT waveform sampling module.Results and conclusions The result showed that the deviation levels of the WLSF Pad’s light output test results are all less than 5%.The linear relationship between the results of testing system and the results obtained with the cosmic ray test has demonstrated the effectiveness of the testing system,which promises the further application in large-scale WLSF pads performance testing.
基金the National Natural Science Foundation of China(Grant Nos.12027803,11875097,11975257)the support from the International Partnership Program of Chinese Academy of Sciences(Grant No.113111KYSB20190020).
文摘Purpose To derive the temperature response of the basic unit of the electromagnetic calorimeter of the high energy cosmic-radiation detection(HERD)facility.Method Tested a method to measure HERD calorimeter cell(HCC)light yield using an ultraviolet Light-Emitting Diode with a wavelength of 300 nm,and established an experimental setup and tested the light yield of the HCC at different temperatures in a thermal chamber.Results and conclusions The result showed that the signal amplitudes variation of the HCC reached up to 10.2% with temperature ranging from 0 to 60℃,if we narrow the temperature range to 0-35℃,the variation was about 3.7% and it showed much better linearity.This result provides a good instruction on the thermal control of the HERD calorimeter(CALO)to improve its performance.
