Jiangxi Nuclear Industry Geological Bureau Testing Center

Nanchang, China

Jiangxi Nuclear Industry Geological Bureau Testing Center

Nanchang, China
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Du X.-S.,Jiangxi Nuclear Industry Geological Bureau Testing Center | Xiong C.,Jiangxi Nuclear Industry Geological Bureau Testing Center | Dou X.-P.,Jiangxi Nuclear Industry Geological Bureau Testing Center | Wang H.-H.,Jiangxi Nuclear Industry Geological Bureau Testing Center
Hedianzixue Yu Tance Jishu/Nuclear Electronics and Detection Technology | Year: 2014

The in-situ core analysis is made by field EDXRF analysis during the process of anomaly inspection in Duobaoshan polymetallic area. There is a high level of consistency between core in-situ analysis and core powder sample analysis. The regional high-anomaly for some elements, such as copper, zinc and manganese, can be obtained by analyzing 37 samples from 20 drill holes. Some error, which is led by uneven mineralization, can be corrected via multi and Split-core measurement. The relative error is less than 20% between in-situ EDXRF and WDXRF in laboratory. ©, 2014, Hedianzixue Yu Tance Jishu/Nuclear Electronics and Detection Technology. All right reserved.


Du X.-S.,Jiangxi Nuclear Industry Geological Bureau Testing Center | Zhang L.-X.,Jiangxi Nuclear Industry Geological Bureau Testing Center | Liang B.,Jiangxi Nuclear Industry Geological Bureau Testing Center | Xie D.-X.,Jiangxi Nuclear Industry Geological Bureau Testing Center | And 2 more authors.
He-Huaxue yu Fangshe Huaxue/Journal of Nuclear and Radiochemistry | Year: 2012

This paper investigates the adsorption of uranium on the polyaluminium and the determination of uranium in the solution containing aluminum ion using Arsenazo III. Research shows that: the error of uranium determination using Arsenazo III is less than 10% when the concentration of aluminum is less than 0.1 mol/L in the 1:1 hydrochloric acid medium, molar absorption coefficient is 103 L/(mol·cm). When OH- is two times aluminum in the polyaluminum and the concentration of aluminum is 5.64×10-3 mol/L, the removal rate of uranium can reach 90% or more. Therefore, polyaluminum is a kind of very good uranium adsorption materials, and it can realize the volume reduction of the waste water containing uranium, thus reducing the costs of nuclear waste disposal.


Xiong C.,Chengdu University of Technology | Xiong C.,Jiangxi Nuclear Industry Geological Bureau Testing Center | Ge L.-Q.,Chengdu University of Technology | Liu D.,The Radiation Environment Monitoring Station of Mianyang | And 4 more authors.
Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis | Year: 2016

Aiming at the self-excitation effect on the interference of measurements which exist in the process of Energy dispersive X-ray fluorescence method for uranium measurement. To solve the problem of radioactive isotopes only used as excitation source in determination of uranium. Utilizing the micro X-ray tube to test Self-excitation effect to get a comparison of the results obtained by three different uranium ore samples-109Cd, 241Am and Mirco X-ray tube. The results showed that self-excitation effect produced the area measure of characteristic X-ray peak is less than 1% of active condition, also the interference of measurements can be negligible. Photoelectric effect cross-section excited by 109Cd is higher, corresponding fluorescence yield is higher than excited by 241Am as well due to characteristics X-ray energy of 109Cd, 22.11 & 24.95 KeV adjacent to absorption edge energy of Lα, 21.75 KeV, based on the above, excitation efficiency by 109Cd is higher than 241Am; The fact that measurement error excited by 241Am is significantly greater than by 109Cd is mainly due to peak region overlap between L energy peaks of uranium and Scattering peak of 241Am, 26.35 keV, These factors above caused the background of measured Spectrum higher; The error between the uranium content in ore samples which the X-ray tube as the excitation source and the chemical analysis results is within 10%. Conclusion: This paper come to the conclusion that the technical quality of uranium measurement used X-ray tube as excitation source is superior to that in radioactive source excitation mode. © 2016, Peking University Press. All right reserved.


Wei X.,Wuhan University | Wei X.,Jiangxi Nuclear Industry Geological Bureau Testing Center | Zhang X.,Wuhan University | Huang X.,Wuhan University | Luan T.,Wuhan University
Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences | Year: 2016

The collection of fossil wood growth rings data is helpful for rebuilding paleoclimate. Based on the statistical analysis of fossil wood growth rings from Middle Permian Taerlang Formation in the northeast edge of Tuha basin, the paleoclimate evolution of Middle Permian is reconstructed for the first time. The analysis of fossil wood growth rings shows that this area was subject to north subtropical climate with obvious seasonal variations during the Middle Permian. The paleoclimate was relatively warm, but intermittent hot climate had occurred. The low percentage of latewood and the abrupt transition between earlywood and latewood of some growth rings reflect that the seasonal variations were very obvious during the period of trees' growth. The paleoclimate was prevailed by a subtropical monsoon climate with hot and humid summer and dry and cold winter. The relatively high mean sensitivity (MS average of 0.4) of fossil woods indicates that trees were influenced by monsoon climate during the growth period, and the environment was very unstable with uneven annual precipitation. The change of consecutive growth ring width and the existence of false rings implies that the climate changed frequently and generally was humid with arid and semi-arid fluctuations. © 2016, Editorial Department of Earth Science. All right reserved.

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