Development of a particle-γ coincidence detection system built with position-sensitive semiconductor detectors
- Authors
- Lee, J.H.; Jung, H.S.; Kwon, Y.K.; Lee, C.S.
- Issue Date
- Aug-2008
- Publisher
- Korean Physical Society
- Keywords
- 16-pixellated CdZnTe detector; Double-sided silicon strip detector; Particle-γ coincidence detection
- Citation
- Journal of the Korean Physical Society, v.53, no.2 PART 1, pp 1192 - 1196
- Pages
- 5
- Journal Title
- Journal of the Korean Physical Society
- Volume
- 53
- Number
- 2 PART 1
- Start Page
- 1192
- End Page
- 1196
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/49804
- DOI
- 10.3938/jkps.53.1192
- ISSN
- 0374-4884
1976-8524
- Abstract
- We propose a particle-γ coincidence detection system consisting of double-sided silicon detectors (DSSDs) and 16-pixellated CdZnTe detectors (16pCZTs) for nuclear reaction studies. The 16pCZTs can be used for γ-ray spectroscopy, such as energy and linear polarization measurements of γ rays emitted from reaction residues, while the DSSDs can be used for particle spectroscopy, such as energy measurement and particle identification for reaction ejectiles. Using the DSSDs in conjunction with the 16pCZTs, we can measure the particle-γ angular correlation and then determine the spin and parity, i.e., the spectroscopic factors, as well as the excitation energy for the nuclear states of reaction residues. Before developing the detection system, we performed a performance test of a DSSD and a 16pCZT with a 226Ra α-decay source and 133Ba and 22Na γ-ray sources. The particle-γ detection performance was also investigated with a 4601-keV α particle emitted from the 226Ra source and an 186.3-keV transition γ ray emitted from the first excited state of 222Rn, and was then compared with the performance of a system consisting of a high-purity germanium detector (HpGe). Despite the poor energy resolution of the 16pCZT, the proposed system is expected to function as an efficient and useful tool for in-beam particle-γ spectroscopy and other applications because of its compactness and high sensitivity.
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