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Fabrication and calibration of new carbon-14 reference standards using irradiated graphite from uranium–graphite reactors
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment ( IF 1.5 ) Pub Date : 2021-04-16 , DOI: 10.1016/j.nima.2021.165350
A.O. Pavliuk , S.G. Kotlyarevsky , R.I. Kan , V.B. Gorshkov , I.M. Maksimova , A.G. Volkova , E.V. Zakharova , A.V. Stepanov , A.G. Volkovich , Yu.N. Simirsky , V.N. Dushin , I.E. Alekseev , V.G. Merkulov , E.V. Tchibisov , D.V. Kabanov

The paper deals with measurements of carbon-14 in irradiated nuclear graphite. It suggests approaches to the problem, impart experience in production and calibration of new C-14, reference standards got from irradiated elements (sleeve, block) of the uranium–graphite reactor (UGR) stacks. Reference standards in the form of irradiated graphite were created and certified by the C-14 concentration. The concentration of C-14 in different samples was determined by interlaboratory comparisons. Results of the work proved an opportunity of creating reference materials for the C-14 radionuclide based on irradiated graphite obtained from the graphite elements of the uranium–graphite reactors. C-14 reference standards with different concentrations of interfering Cl-36, Co-60, H-3, Cs-137, Sr-90 and other radionuclides can be used for future development of new methods of determination the C-14 concentration in irradiated graphite and spectrometric equipment calibration.



中文翻译:

使用铀-石墨反应堆中的辐照石墨制作和校准新的碳14参考标准

本文涉及辐照核石墨中碳14的测量。它提出了解决问题的方法,传授了生产和校准新C-14的经验,以及从铀-石墨反应堆(UGR)堆中的辐照元素(套筒,块)获得的参考标准。建立了辐照石墨形式的参考标准,并通过C-14浓度进行了认证。通过实验室间比较确定不同样品中C-14的浓度。这项工作的结果证明是一个机会,可以基于从铀-石墨反应堆的石墨元素获得的辐照石墨,为C-14放射性核素创建参考材料。具有不同浓度的干扰Cl-36,Co-60,H-3,Cs-137,

更新日期:2021-04-21
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