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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.6
- 수록면
- 881 - 885 (5page)
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초록· 키워드
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This work presents a new technique for discriminating between alpha particles of different energy levels. In a first study, two groups of alpha particles emitted from radium-226 and americium-241 sources were successfully separated using a CR-39 microfilm of appropriate thickness. This thickness was adjusted by chemical etching before and after irradiation so that lower-energy particles were stopped within the detector, while higher-energy particles were revealed on the back side of the detector. The number of tracks on the front side of the microfilm represented all alpha particles incident on that side from the two sources.
However, the number of tracks on the back side of the microfilm represented only the longrange alpha particles of higher energy that arrived at that side. Therefore, by subtracting the number of tracks on the back side from the number of tracks on the front side, one could easily determine the number of tracks for the short-range alpha particles of lower energy that remained embedded in the microfilm. Discrimination of the two energy levels is thus achieved in a simple, fast, and reliable process.
목차
등록된 정보가 없습니다.
참고문헌 (23)
참고문헌 신청
D. Zhou / 2006 / Charge spectra of cosmic ray nuclei measured with CR-39 detectors in low earth orbit / Nucl. Instrum. Methods Phys. Res. A 564:262~266
S. Kodaira / 2008 / Development of high resolution solidstate track detector for ultra heavy cosmic ray observation / Proceedings of the 30th International Cosmic Ray Conference :425~428
C. Zhao / 2014 / Effects of atmospheric parameters on radon measurements using alpha-track detectors / Rev. Sci. Instrum 85:022101/1~022101/5
M. Janik / 2014 / Radon and thoron intercomparison experiments for integrated monitors at NIRS, Japan / Rev. Sci. Instrum 85:022001/1~022001/22
A. Ulug / 2004 / Radon measurements with CR-39 track detectors at specific locations in turkey / Nucl. Tech. Radiat. Prot 19:46~49
S. Kodaira / 2008 / Development of high resolution solidstate track detector for ultra heavy cosmic ray observation / Proceedings of the 30th International Cosmic Ray Conference :425~428
C. Zhao / 2014 / Effects of atmospheric parameters on radon measurements using alpha-track detectors / Rev. Sci. Instrum 85:022101/1~022101/5
M. Janik / 2014 / Radon and thoron intercomparison experiments for integrated monitors at NIRS, Japan / Rev. Sci. Instrum 85:022001/1~022001/22
A. Ulug / 2004 / Radon measurements with CR-39 track detectors at specific locations in turkey / Nucl. Tech. Radiat. Prot 19:46~49
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