Details

Autor(en) / Beteiligte

• Pavliuk, A.O.
• Kotlyarevsky, S.G.
• Kan, R.I.
• Gorshkov, V.B.
• Maksimova, I.M.
• Volkova, A.G.
• Zakharova, E.V.
• Stepanov, A.V.
• Volkovich, A.G.
• Simirsky, Yu.N.
• Dushin, V.N.
• Alekseev, I.E.
• Merkulov, V.G.
• Tchibisov, E.V.
• Kabanov, D.V.

Titel

Fabrication and calibration of new carbon-14 reference standards using irradiated graphite from uranium–graphite reactors

Ist Teil von

• Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2021-07, Vol.1003, p.165350, Article 165350

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.