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Optimized online filter stack spectrometer for ultrashort X-ray pulses
《Nuclear Science and Techniques》2024年第5期85-98,共14页Jia-Xing Wen Ge Ma Ming-Hai Yu Yu-Chi Wu Yong-Hong Yan Shao-Yi Wang Huai-Zhong Gao Lu-Shan Wang Yu-Gang Zhou Qiang Li Yue Yang Fang Tan Xiao-Hui Zhang Jie Zhang Wen-Bo Mo Jing-Qin Su Wei-Min Zhou Yu-Qiu Gu Ming Zeng Zong-Qing Zhao 
partially supported by the Natural Science Foundation of China(Nos.12004353,11975214,11991071,11905202,12175212,and 12120101005);the Key Laboratory Foundation of the Science and Technology on Plasma Physics Laboratory(Nos.6142A04200103 and 6142A0421010).
Currently,with the advent of high-repetition-rate laser-plasma experiments,the demand for online diagnosis for the X-ray spectrum is increasing because the laser-plasma-generated X-ray spectrum is very important for c...
关键词：Filter stack spectrometer Laser plasma diagnostics X-ray diagnostics Scintillator PIN diode 
Artificial neural network-based method for discriminating Compton scattering events in high-purity germaniumγ-ray spectrometer
《Nuclear Science and Techniques》2024年第2期64-84,共21页Chun-Di Fan Guo-Qiang Zeng Hao-Wen Deng Lei Yan Jian Yang Chuan-Hao Hu Song Qing Yang Hou 
This work was supported by the National Key R&D Program of China(Nos.2022YFF0709503,2022YFB1902700,2017YFC0602101);the Key Research and Development Program of Sichuan province(No.2023YFG0347);the Key Research and Development Program of Sichuan province(No.2020ZDZX0007).
To detect radioactive substances with low activity levels,an anticoincidence detector and a high-purity germanium(HPGe)detector are typically used simultaneously to suppress Compton scattering background,thereby resul...
关键词：High-purity germaniumγ-ray spectrometer Pulse-shape discrimination Compton scattering Artificial neural network Minimum detectable activity 
The study of a neutron spectrum unfolding method based on particle swarm optimization combined with maximum likelihood expectation maximization被引量：1
《Nuclear Science and Techniques》2023年第4期149-160,共12页Hong-Fei Xiao Qing-Xian Zhang He-Yi Tan Bin Shi Jun Chen Zhi-Qiang Cheng Jian Zhang Rui Yang 
supported by the National Natural science Foundation of China (No. 42127807);the Sichuan Science and Technology Program (No. 2020YJ0334);the Sichuan Science and Technology Breeding Program (No. 2022041)。
The neutron spectrum unfolding by Bonner sphere spectrometer(BSS) is considered a complex multidimensional model,which requires complex mathematical methods to solve the first kind of Fredholm integral equation. In or...
关键词：Particle swarm optimization Maximum likelihood expectation maximization Neutron spectrum unfolding Bonner spheres spectrometer Monte Carlo method 
Simulation and test of the SLEGS TOF spectrometer at SSRF被引量：9
《Nuclear Science and Techniques》2023年第3期171-184,共14页Kai-Jie Chen Long-Xiang Liu Zi-Rui Hao Yu-Gang Ma Hong-Wei Wang Gong-Tao Fan Xi-Guang Cao Hang-Hua Xu Yi-Fei Niu Xin-Xiang Li Xin-Rong Hu Yu-Xuan Yang Sheng Jin Pan Kuang 
supported by the National Natural Science Foundation of China (Nos.12275338,12005280,11905274 and 11875311);the Key Laboratory of Nuclear Data foundation (JCKY2022201C152);National key research and development program (No.2022YFA1602404);the Strategic Priority Research Program of the CAS (No.XDB34030000).
The Shanghai laser electron gamma source(SLEGS)is a powerful tool for exploring photonuclear physics,such as giant dipole resonance(GDR)and pygmy dipole resonance,which are the main mechanisms of collective nuclear mo...
关键词：SLEGS TIME-OF-FLIGHT Photoneutron nuclear reaction 
Conceptual design of a Cs2LiLaBr6 scintillator‑based neutron total cross section spectrometer on the back‑n beam line at CSNS被引量：3
《Nuclear Science and Techniques》2023年第1期23-32,共10页Da‑Jun Zhao Song Feng Pin‑Jing Cheng Rong Liu Wen Luo Hao‑Qiang Wang Jie‑Ming Xue Kun Zhu Bo Zheng 
supported by the Key Laboratory of Nuclear Data Foundation(No.JCKY2022201C153);National Natural Science Foundation of China(No.11505216),Educational Commission of Hunan Province of China(No.19B488);Natural Science Foundation of Hunan Province of China(Nos.2021JJ40444 and 2020RC3054).
To reduce the experimental uncertainty in the 235 U resonance energy region and improve the detection efficiency for neutron total cross section measurements compared with those obtained with the neutron total cross s...
关键词：Neutron total cross section CLLB scintillator GEANT4 Pulse shape discrimination(PSD) 
Reconstruction of fission events in heavy ion reactions with the compact spectrometer for heavy ion experiment被引量：1
《Nuclear Science and Techniques》2022年第4期1-9,共9页Xin-Yue Diao Fen-Hai Guan Yi-Jie Wang Yu-Hao Qin Zhi Qin Dong Guo Qiang-Hua Wu Da-Wei Si Xuan Zhao Sheng Xiao Yao-Peng Zhang Xiang-Lun Wei Hai-Chuan Zou He-Run Yang Peng Ma Rong-Jiang Hu Li-Min Duan Artur Dobrowolski Krzysztof Pomorski Zhi-Gang Xiao 
supported by the National Natural Science Foundation of China(Nos.11875174,11961131010,and 11961141004);the Polish National Science Center(No.2018/30/Q/ST2/00185)。
We report a reconstruction method for fast-fission events in 25 MeV/u^(86)Kr +^(208)Pb reactions at the Compact Spectrometer for Heavy Ion Experiment(CSHINE). The fission fragments(FFs) are measured using three large-...
关键词：Fast fission Heavy ion reactions Parallelplate avalanche counter CSHINE 
Determination of gross α and β activities in Zouma River based on online HPGe gamma measurement system被引量：3
《Nuclear Science and Techniques》2020年第12期65-76,共12页Xian Guan Liang-Quan Ge Guo-Qiang Zeng Xiao-Qin Deng Li-Peng Xu Sheng-Liang Guo 
the National Science Foundation of China(No.41774147);the National Key R&D Program of China(No.2017YFC0602105);the Science–Technology Support Plan Projects of Sichuan Province(No.2020YJ0334);the Sichuan Science and Technology Program(No.2020JDRC0108).
This paper describes a low-cost and fast method to evaluate gross α and β^(-) radioactivities in natural water based on an online high-purity germanium detector gamma measurement system.The major gamma activities in...
关键词：Grossαandβ^(-)activity HPGe gamma spectrometer Online radioactivity level measurement for natural water Natural radioactivity Water sources of Chengdu 
Development of the real-time double-ring fusion neutron time-of-flight spectrometer system at HL-2M被引量：3
《Nuclear Science and Techniques》2019年第12期22-30,共9页Bo-Wen Zheng Wei Zhang Tong-Yu Wu Si-Cheng Huang Yi-Po Zhang Xiu-Feng Xu Shi-Biao Tang Ze-Jie Yin 
partially supported by the National Science and Technology Major Project of Ministry of Science and Technology of China(Nos.2014GB109003 and 2015GB111002);the National Natural Science Foundation of China(Nos.11375195,11575184,11375004,and 11775068)
A real-time double-ring neutron time-of-flight(TOFII) spectrometer system has been proposed to achieve plasma diagnosis on HL-2M tokamak with a relatively high count rate and sufficient energy resolution.The TOFII sys...
关键词：Time-of-light NEUTRON SPECTROMETER GEANT4 HL-2M 
Correction and verification of HL-2A Tokamak Bonner sphere spectrometer in monoenergetic neutron fields from 100 keV to 5 MeV被引量：3
《Nuclear Science and Techniques》2019年第11期72-82,共11页Bo-Wen Zheng Chun-Yu Jiang Zi-Hao Liu Yin-Hai Pan Xian-Ying Song Shi-Biao Tang Ze-Jie Yin 
supported by the National Natural Science Foundation of China(Nos.11375195 and 11575184)
A real-time Bonner sphere spectrometer(BSS)has been developed for spectral neutron measurements with the HL-2A Tokamak.To correct and verify the accuracy of the neutron spectrum from the BSS,the BSS system was calibra...
关键词：Bonner SPHERE SPECTROMETER Calibration Response function NEUTRON SPECTROMETRY 
Evaluation of CdZnTe spectrometer performance in measuring energy spectra during interventional radiology procedure被引量：2
《Nuclear Science and Techniques》2019年第9期55-60,共6页Lin Chai Lian Chen Cui-Ping Yang Dong-Dong Zhou Meng-Meng Yang Wei-Wei Qu Gao-Long Zhang Da-Qian Hei Shou-Ping Xu Xin-Jian Chen 
supported by the National Natural Science Foundation of China(No.11705123);Natural Science Foundation of Jiangsu Province(No.BK20160306);China Postdoctoral Science Foundation(No.2016M591911);the Project of the State Key Laboratory of Radiation Medicine and Protection,Soochow University(No.GZN1201801)
Interventional radiology has been beneficial for patients for over 30 years of age with the combination of diagnostic and therapeutic methods. The radiation affecting occupationally exposed workers should be evaluated...
关键词：INTERVENTIONAL RADIOLOGY procedures Energyresponse CURVE Energy spectrum Radiation protection 
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