Linear polarization measurement of gamma rays in Gd-155 by using a segmented Compton polarimeter
- Authors
- Lee, JH; Lee, CS; Huh, JY; Moon, JY; Kwon, YK; Gono, Y; Fukuchi, T; Tanaka, S; Shinozuka, T; Fujita, M; Yamazaki, A; Sonoda, T; Kim, YK; Chai, JS
- Issue Date
- May-2002
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- linear polarization; Compton polarimeter; planar-type germanium crystal; electric and magnetic types
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.40, no.5, pp 793 - 801
- Pages
- 9
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 40
- Number
- 5
- Start Page
- 793
- End Page
- 801
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/25121
- ISSN
- 0374-4884
1976-8524
- Abstract
- A linear polarization measurement for gamma rays has been performed to directly determine the parities for the levels in Gd-155. High-spin states in Gd-155 were populated in the Sm-154(alpha,3ngamma)Gd-155 reaction by using 35-MeV alphas. Linearly polarized gamma rays emitted from oriented states were measured by using a Compton polarimeter which is made of a planar-type germanium crystal and is segmented into 25 cathodes. The linear polarization of the gamma rays was measured by selecting Compton-scattered events fired in coincidence between two adjacent cathodes. The sign of the measured linear polarization enabled us to distinguish between electric and magnetic types of gamma-ray transitions. Accordingly. the parities of the high-spin states in Gd-155 were directly determined. Our parity assignment is in excellent agreement with a previous one.
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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