THE USE OF NATURAL MATERIALS WITH A LOW CONTENT OF RADIONUCLIDES AS PROTECTION FROM THE EXTERNAL BACKGROUND DURING LABORATORY GAMMA-RAY SPECTROMETRIC AND RADIOMETRIC MEASUREMENTS
Journal: ANRI
№ 1
, 2025
Rubrics: SCIENTIFIC ARTICLE
Authors:
1.
Branch of Rosenergoatom, JSC, Novovoronezh NPP the Voronezh Region
(direktor filiala)
Russian Federation
Russian Federation
2.
Rosenergoatom, Joint-Stock Company (REA JSC) Novovoronezh Nuclear Power Plant (Novovoronezh NPP)
Russian Federation
Russian Federation
3.
Rosenergoatom, Joint-Stock Company (REA JSC) Novovoronezh Nuclear Power Plant (Novovoronezh NPP)
4.
Branch of JSC «Concern Rosenergoatom» «Novovoronezh Nuclear Power Plant»
5.
Novovoronezh Nuclear Power Plant (Novovoronezh NPP)
(Deputy Head of Department)
6.
Novovoronezh Nuclear Power Plant (Novovoronezh NPP)
(Deputy Head of the Shop)
7.
Novovoronezh Nuclear Power Plant (Novovoronezh NPP)
(Lead Engineer)
Type:
Article
Pages:
from 47
to 55
Status:
Published
Received:
27.04.2025
Accepted:
27.04.2025
Published:
27.04.2025
Subject area:
UDC 539.16.07
Language:
Russian
Keywords:
gamma-ray spectrometry, radiometry, shielding, calcium carbonate, laboratory, radiation control
Abstract (English):
An original method of organizing protection from the external background during gamma-spectrometric and radiometric measurements is considered, in which the inner surface of the walls, floor and ceiling of the laboratory room is covered with a solid screen made of natural materials with a low content of radionuclides. The use of this method makes it possible to eliminate the cost of purchasing traditional metal protective chambers used for low-background gamma-ray spectrometry and radiometry, and to remove restrictions on the size of the measured sample set by the internal dimensions of the measuring cavity of the protective chamber. It has been established that natural carbonates with a CaCO3 content of at least 98% are the optimal materials for these purposes. The boundaries of the application of this method of protection organization have been determined, and experimental confirmation of the effectiveness of the proposed method has been carried out by measurements in the Cretaceous cell of the Divnogorsky cave temple. A sketch of the layout of the laboratory room has been developed, which implements the proposed method of protection from the external background during measurements
An original method of organizing protection from the external background during gamma-spectrometric and radiometric measurements is considered, in which the inner surface of the walls, floor and ceiling of the laboratory room is covered with a solid screen made of natural materials with a low content of radionuclides. The use of this method makes it possible to eliminate the cost of purchasing traditional metal protective chambers used for low-background gamma-ray spectrometry and radiometry, and to remove restrictions on the size of the measured sample set by the internal dimensions of the measuring cavity of the protective chamber. It has been established that natural carbonates with a CaCO3 content of at least 98% are the optimal materials for these purposes. The boundaries of the application of this method of protection organization have been determined, and experimental confirmation of the effectiveness of the proposed method has been carried out by measurements in the Cretaceous cell of the Divnogorsky cave temple. A sketch of the layout of the laboratory room has been developed, which implements the proposed method of protection from the external background during measurements
Keywords:
gamma-ray spectrometry, radiometry, shielding, calcium carbonate, laboratory, radiation control
gamma-ray spectrometry, radiometry, shielding, calcium carbonate, laboratory, radiation control
1. URL: http://www.radiation.ru/research/laborat.htm (data obrascheniya: 27.01.2025).
2. URL: http://ru.wikipedia.org/wiki/Nacional'naya_laboratoriya_Gran-Sasso (data obrascheniya: 27.01.2025).
3. URL: http://ru.wikipedia.org/wiki/Solotvino (data obrascheniya: 27.01.2025).
4. Kudeyarova N.P., Nazarova V.V., Rozhkov V.P. Melovye tolschi Belgorodskoy oblasti: sostav, struktura i svoystva//Stroitel'nye materialy. 2010.
5. A.M. Kuzin. Nevidimye luchi vokrug nas. M.: Nauka, 1980, 151 s.
6. GOST 9479-98. Bloki iz gornyh porod dlya proizvodstva oblicovochnyh, arhitekturno-stroitel'nyh, memorial'nyh i drugih izdeliy. Tehnicheskie usloviya.
7. GOST 23342-91. Izdeliya apxitektupno-ctpoitel'nye iz ppipodnogo kamnya. Texnicheckie ucloviya.
