SPECTROMETRY

作品数:461被引量:896H指数:12
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Method for rapid warning and activity concentration estimates in online waterγ-spectrometry systems
《Nuclear Science and Techniques》2024年第3期1-12,共12页Meng Wang Yi Gu Mao-Lin Xiong Liang-Quan Ge Qing-Xian Zhang Guo-Qiang Zeng Heng Lu Sheng-Liang Guo 
supported by the National Natural Science Foundation of China(No.42127807);Natural Science Foundation of Sichuan Province of China(Project No.2023NSFSC0008);Uranium Geology Program of China Nuclear Geology(No.202205-6);the Sichuan Science and Technology Program(No.2021JDTD0018)。
Onlineγ-spectrometry systems for inland waters,most of which extract samples in situ and in real time,are able to produce reliable activity concentration measurements for waterborne radionuclides only when they are d...
关键词:Water radioactivity monitoring Dynamic detection efficiency Rapid warning Activity estimation 
Advanced algorithms for retrieving pileup peaks of digital alpha spectroscopy using antlions and particle swarm optimizations被引量:1
《Nuclear Science and Techniques》2020年第4期47-68,共22页Mohamed S.El_Tokhy 
Optimization algorithms are applied to resolve the second-order pileup(SOP)issue from high counting rates occurring in digital alpha spectroscopy.These are antlion optimizer(ALO)and particle swarm optimization(PSO)alg...
关键词:ALPHA SPECTROMETRY instrument SECOND-ORDER pileup SIGNAL processing Optimization algorithms 
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 
Performances of different efficiency calibration methods of high-purity-germanium gamma-ray spectrometry in an inter-comparison exercise被引量:7
《Nuclear Science and Techniques》2019年第3期9-14,共6页Bao-Lu Yang Qiang Zhou Jing Zhang Shuai-Mo Yao Ze-Shu Li Wen-Hong Li Fei Tuo 
supported by the Support Program of the Ministry of Science and Technology(No.2014FY211000);the National Key Technology Research and Development Program(No.2013BAK03B05)
This study reports the performances of efficiency calibrations for high-purity-germanium gamma-ray spectrometry using the source-, Laboratory Sourceless Object Calibration Software(LabSOCS)-and ANGLE-based methods in ...
关键词:EFFICIENCY CALIBRATION ANGLE Laboratory Sourceless Object CALIBRATION Software (LabSOCS) GAMMA-RAY SPECTROMETRY 
A reinvestigation of low molecular weight components in SOA produced by cyclohexene ozonolysis
《Nuclear Science and Techniques》2018年第11期238-246,共9页Jun Chen Zhao-Hui Li Ye-Peng Yu Xuan Lin Hang Zhang Yan-Bo Li Huan-Huan Wang Rui-Rui Sun Qing-Hui Meng Chao-Qun Huang Xiao-Bin Shan Fu-Yi Liu Chang-Jin Hu Wei-Jun Zhang Liu-Si Sheng 
supported by the National Natural Science Foundation of China(Nos.11575178,91544105,U1532137,91544228,and U1232130)
The ozonolysis of cyclohexene is an important model system for understanding the more complex reaction of O_3 with monoterpenes; however, many previous studies have come to qualitatively different conclusions about th...
关键词:CYCLOHEXENE OZONOLYSIS SOA SMOG CHAMBER Aerosol mass SPECTROMETRY 
Spectrometry analysis based on approximation coefficients and deep belief networks
《Nuclear Science and Techniques》2018年第5期65-74,共10页Jian-Ping He Xiao-Bin Tang Pin Gong Peng Wang Zhen-Yang Han Wen Yan Le Gao 
supported by the National Natural Science Foundation of China(No.11675078);the Foundation of Graduate Innovation Center in NUAA(No.kfjj20160606,kfjj20170613,and kfjj20170617);the Primary Research and Development Plan of Jiangsu Province(No.BE2017729);the Fundamental Research Funds for the Central Universities(No.NJ20160034);the Funding of Jiangsu Innovation Program for Graduate Education(No.KYLX16_0353);the Priority Academic Program Development of Jiangsu Higher Education Institutions
A method of spectrometry analysis based on approximation coefficients and deep belief networks was developed. Detection rate and accurate radionuclide identification distance were used to evaluate the performance of t...
关键词:APPROXIMATION coefficient DEEP BELIEF network SPECTROMETRY ANALYSIS RADIONUCLIDE identification Detection rate 
Methodological study on endogenous calcium absorptivity using rats and 41Ca tracing被引量:1
《Nuclear Science and Techniques》2018年第4期79-82,共4页Hui Zhang Liang Dou Xiao-Ming Wang Sheng-Quan Mi Qing-Zhang Zhao Shan Jiang Ming He 
supported by the National Nature Science Foundation of China(No.11375272)
Elemental calcium plays an important role in human physiology. In order to study the relationship between Ca-intake, Ca-chemical formulation, and Ca-absorptivity, a balance experiment using a ^(41)Ca tracer technique ...
关键词:ENDOGENOUS CALCIUM ABSORPTIVITY 41Ca TRACER Accelerator mass SPECTROMETRY measurement 
Implementation of a cusp-like for real-time digital pulse shaper in nuclear spectrometry被引量:7
《Nuclear Science and Techniques》2017年第7期79-84,共6页Jun Liu Jian Yang Guo-Qiang Zeng Kai-Qi Zhang Shi-Long Wei Liang-Quan Ge 
supported by the National Natural Science Foundation of China(Nos.41474159 and 41504139);Sichuan Youth Science and Technology Foundation(No.2015JQ0035);Sichuan Science and Technology Support Program(No.2017GZ0390);the Key Laboratory of Applied Nuclear Techniques in Geosciences Sichuan(No.gnzds2014006)
Pulse shaping,which improves signal-to-noise ratio excellently,has been extensively used in nuclear signal processing.This paper presents a cusp-like pulse-shaping technique developed through the recursive difference ...
关键词:脉冲整形器 现场可编程门阵列 能量分辨率 尖点 实时 谱仪 递归差分方程 整形技术 
An enhanced differential evolution-based inverse radiation transport model for identification of unknown shielding layer thicknesses with gamma-ray spectrum被引量:2
《Nuclear Science and Techniques》2017年第6期161-168,共8页Ying Chen Lian-Ping Zhang Xue Sai Meng-Fu Wei Lun-Qiang Wu Jian-Min Hu 
supported by the CAEP foundation for Development of Science and Technology(No.2015B0103014);National Natural Science Foundation of China(No.11605163)
Identifying the geometric information of an object by analyzing the detected radiation fields is an important problem for national and global security.In the present work,an inverse radiation transport model,based on ...
关键词:INVERSE RADIATION transport y SPECTROMETRY Multi-shielding layers Differential evolution with local and global neighborhoods 
Studies of Al metabolism in animal by accelerator mass spectrometry
《Nuclear Science and Techniques》1997年第4期249-250,共2页WangNa-Xiu ZhuHan-Min  
StudiesofAlmetabolisminanimalbyaceleratormasspectrometryWangNaXiu,ZhouWeiNan,LiuLianFan,ChengXiaoWu,ZhuJinHu...
关键词:^26Al 新陈代谢 加速器质量光谱测定 
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