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Experimental setup for elemental analysis using prompt gamma rays at research reactor IBR-2

Hramco C.|Turlybekuly K.|Borzakov S.B.|Gundorin N.A.|Lychagin E.V.|Nehaev G.V.|Muzychka A. Yu|Strelkov A.V.|Teymurov E.
한국원자력학회 (Korean Nuclear Society)|2022.08|Nuclear Engineering and Technology|제54권 제8호|pp. 2999-3005|DOI 10.1016/j.net.2022.02.022

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참고문헌

키워드

Prompt gammaHydrogen contentDiamond powderElemental analysisNeutron activation analysisIBR-2 FLNP JINR
주제분류원자력공학

초록

The new experimental setup has been built at the 11b channel of the IBR-2 research reactor at FLNP, JINR, to study the elemental composition of samples by registration of prompt gamma emission during thermal neutron capture. The setup consists of a curved mirror neutron guide and a radiation-resistant HPGe high-purity germanium detector. The detector is surrounded by lead shielding to suppress the natural background gamma level. The sample is placed in a vacuum channel and surrounded by a LiF shield to suppress the gamma background generated by scattered neutrons. This work presents characteristics of the experimental setup. An example of hydrogen concentration determining in a diamond powder made by detonation synthesis is given and on its basis, the sensitivity of the setup is calculated being ~4 mg.

Abstract

The new experimental setup has been built at the 11b channel of the IBR-2 research reactor at FLNP, JINR, to study the elemental composition of samples by registration of prompt gamma emission during thermal neutron capture. The setup consists of a curved mirror neutron guide and a radiation-resistant HPGe high-purity germanium detector. The detector is surrounded by lead shielding to suppress the natural background gamma level. The sample is placed in a vacuum channel and surrounded by a LiF shield to suppress the gamma background generated by scattered neutrons. This work presents characteristics of the experimental setup. An example of hydrogen concentration determining in a diamond powder made by detonation synthesis is given and on its basis, the sensitivity of the setup is calculated being ~4 mg.

참고문헌 (20)

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