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Measurements of the Specific Activities of(137)Cs in Antarctica Environmental Samples by Using the Low-Level Radiation Analysis Method
- Title
- Measurements of the Specific Activities of(137)Cs in Antarctica Environmental Samples by Using the Low-Level Radiation Analysis Method
- Authors
- Huh, Jangyong; Park, Chaeyeon; Kim, Taehee; Hahn, Insik; Kim, Go Woon; Lee, Eunkyung; Kim, Ji Hee
- Ewha Authors
- 한인식; 허장용
- SCOPUS Author ID
- 한인식; 허장용
- Issue Date
- 2020
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- ISSN
- 0374-4884
1976-8524
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY vol. 77, no. 3, pp. 217 - 222
- Keywords
- Antarctica; Cs-137 tracing; Environmental radiation; Efficiency calibration; GEANT4
- Publisher
- KOREAN PHYSICAL SOC
- Indexed
- SCIE; SCOPUS; KCI
- Document Type
- Article
- Abstract
- Since the King Sejong Korean Antarctic Research Station began operation in 1988, studies of various fields have been then carried out in polar regions and significant achievements have been yielded. However, environmental and biological radiations have not been dealt with compared to other research areas. In this study, the(137)Cs distribution is investigated for environmental elements in the vicinity of the two research stations, the Jang Bogo Station and the King Sejong Station, operated by the Korea Polar Research Institute (KOPRI) in Antarctica by using a low-level radiation analysis method. Three different types of environmental samples, soils, mosses, and lichens are investigated for identification of(137)Cs. In order to discriminate low levels of radiations from background radiations and estimate their specific activities with high reliability and precision, we used a heavily shielded HPGe detector in an underground laboratory to perform the activity measurements. GEANT4 simulations were carried out for efficiency calibrations corresponding to the shape of the pre-processed sample.Cs-137 has been identified in all the samples and the energy spectrum has been found to reflect their physical and ecological characteristics.
- DOI
- 10.3938/jkps.77.217
- Appears in Collections:
- 사범대학 > 과학교육과 > Journal papers
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