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- Title
Measurement of NORM in geologic and building materials by pair measurement–gamma spectrometry.
- Authors
Lee, Kil Yong; Hwang, Seho; Kim, Yongcheol; Ko, Kyung-Seok
- Abstract
Naturally occurring radioactive materials in geologic and building materials have been recommended or regulated in most countries. 226Ra, 232Th and 40K are important radionuclides for building materials. Sometimes for radiation dosimetry, the activity of the radionuclides must be determined in short time. However, samples must be stored in measurement containers for 30 days for the determination of 226Ra in traditional gamma-spectrometry. In this study, pair measurement–gamma spectrometry (PM–GS) method was studied to determine rapidly 226Ra in geologic and building materials. The samples were measured two times within 7 days after sealing. The activity concentrations of 226Ra, 232Th and 40K in geologic and building materials could be successfully determined within a week by using the PM–GS method.
- Subjects
CONSTRUCTION materials; THORIUM isotopes; RADIATION dosimetry; SPECTROMETRY; SCINTILLATION spectrometry; RADIOACTIVE substances; GAMMA ray spectrometry; RADIOISOTOPES
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2019, Vol 322, Issue 3, p1791
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-019-06896-w