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Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

AN INAA STUDY ON SOIL BACKGROUND VALUES OF U, Th AND REE IN CHINA

The background values of elements in soil have been investigated by INAA. The contents of 8 REE (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu), U and Th in 364 top soil samples (A horizon) in China were determin...

Sun Jingxin (孙景信) and Wang Yuqi (王玉琦)

1992, 3 (3): 161

A SPHERICAL GRAPHITE IONIZATION CHAMBER

This paper describes an exposure ratemeter made of graphite ion chamber. The sensitive volume is 14 cm3. The wall is 5 mm in thickness. The DC amplifier with a high input impedance consists of several...

Chen Lishu (陈丽姝)

1992, 3 (3): 167

3H—LABELLING OF BELLADONNA ALKALOIDS BY CATALYSED EXCHANGE WITH MICROWAVE EXCITATION

The 3H-labelled belladonna alkaloids obtained by catalysed exchange method with microwave excitation was investigated. The specific activities of the labelled products were 16— 32 TBq/mol. More than 9...

Zhang Liming (张丽明), Zheng Dongzhu (郑冬珠) Yuan Jianmin (袁建民), Jiang Xiaoma (蒋晓马) and Zhao Xialing (赵夏令)

1992, 3 (3): 171

ELASTIC RECOIL DETECTION ANALYSIS OF LIGHT ELEMENTS IN THIN FILMS USING 35 MeV 35Cl6+ BEAM

In this paper. an elastic recoil detection analysis method is described using 35 MeV 35Cl as incident ions. This method can determine and profile simultaneously H, D, He, C and O or in the other case,...

Yang Xihong (杨熙宏) Wei Luncun (韦伦存) Li Renxing (李认兴). Yu Jinxiang (于金祥) Liang Bin (梁斌) Ren Xiaotang (任晓棠), Wang Zhaojiang (王光江), Hong Xiuhua (洪秀花) and Zhang Lichun (张利春)

1992, 3 (3): 175

KINETIC STUDY OF LIGAND EXCHANGE REACTION BETWEEN 99mTc一GH AND ECD

In order to explore this type of 99mTc-GH and N2S2 ligands exchange reaction as a common method for the preparation of 99mTc-N2S2 complexes, detailed kinetic study of ligand exchange reaction between ...

Fang Ping (方 平) Wu Chunying (吴春英), Luo Shineng (罗世能), Kuang Qinfang (匡琴芳) Feng Yingying (冯瑛瑛) Xie Minhao (谢敏浩), Xi Yuefen (奚月芬) and Guo Yuzhi (国毓智)

1992, 3 (3): 182

PROTON ELASTIC SCATTERING ANALYSIS OF C, N AND O COMPOSITION IN MATERIALS

Proton elastic scattering at energies around 2.0 MeV was used to determine the concentration of oxygen in a Y-Ba-Cu-O compound. nitrogen in a TiN film on steel substrate. and carbon and oxygen in a th...

Yang Guohua (杨国华) Zhu Dezhang (朱德彰) Pan Haochang (潘浩昌), Xu Hongjie (徐洪杰) and Chen Shoumian (陈寿面)

1992, 3 (3): 186

A TOTAL CONTENT X— RAY FLUORESCENCE METHOD FOR COPPER PROSPECTING

A new method is proposed to prospect copper deposits with portable XRF analyzer. The method is based on the close relation between Cu and the chalcophile elements or some other elements in the geochem...

Zhou Sichun (周四春), Xie Tingzhou {(谢庭周) and Ge Liangquan (葛良全)

1992, 3 (3): 191

MULTI— ELEMENT DETERMINATION OF SOIL SOLUTION BY INAA

One factor of influencing crop growth is the effective elemental contents, especially trace elements, under the circumstances of the same concentrations of N, P and K in soil. In order to obtain the d...

Qian Qinfang (钱琴芳), Wu Shuiqing (吴水清), Tian 下bing (田继兵), Chen Shiqing (陈世庆)

1992, 3 (3): 196

IMPROVEMENT IN SEPARATION OF 68Ge FROM Ga2OTARGET

Two new systems have been presented for the extraction separation of 68Ga from irradiated Ga2O3 target after proton bombardment. It could avoid the loss of 68GeCl4 during the processing and storage, r...

Bao Borong (包伯荣) and Wang Yinsong (王荫淞)

1992, 3 (3): 202

IDENTIFICATION OF MARINE AEROSOL COMPONENT BY COMBINED NAA AND SCANNING ELECTRON MICROSCOPY WITH X— RAY ANALYSIS

The concentrations of 30 elements in aerosol particles collected in western Pacific ocean have been determined by INAA. The crustal element concentrations decrease with increasing distance from land o...

Yang Shaojin (杨绍晋), Zhang Yiming (章一鸣)

1992, 3 (3): 205

PIXE ANALYSIS OF GRAPHITE PHASE IN NODULAR CAST IRON

The graphite phase has been extracted from the nodular cast iron to measure the concentration of trace element in it. The impurity phase was removed from the extracted matter by dissolving it with HCl...

Zhong Ming (钟溟), Feng Songlin (冯松林), Wang Yu (王禹), Ren Minqin (任彰秦), Liu Nianqing (刘年庆), Zhang Xiaofeng (张晓峰), Yan Lingna (焉伶娜), Han Qiyong(韩其勇)

1992, 3 (3): 210

DETERMINATION OF TRACE ELEMENTS IN SUBCELLULAR FRACTION OF HUMAN LIVER BY INAA

The concentrations of 18 elements in subcellular fractions of human liver were determined by combining differential centrifugation and INAA. Samples of human liver were homogenized in a buffer. The ho...

Zheng Jian (郑 建) Zhuang Guisun (庄圭荪) and Cheng Yuandi (成源棣)

1992, 3 (3): 216

DETERMINATION OF REE IN HIGH— PURE Y2O3 BY NAA

The method used is divided into two parts. One part is the determination of La, Ce, Pr and Sm by pretreatment neutron activation analysis. The other part is the determination of Ce, Eu, Tb, Tm, Yb and...

Lu Huijuan (陆蕙娟) and Zhou Yunlu (周云鹿)

1992, 3 (3): 222

 Nuclear Science and Techniques

ISSN: 1001-8042     eISSN: 2210-3147

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