Neutron detectors for scattering experiments at HANARO |
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Authors: | Myungkook Moon Changhee Lee Jongkyu Cheon Younghyun Choi Harkrho Kim Shraddha S. Desai |
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Affiliation: | (1) Korea Atomic Energy Research Institute, 150 Duckjindong, Yusung, Daejeon, Republic of Korea, 305-353;(2) Bhabha Atomic Research Centre, Mumbai, India |
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Abstract: | Position sensitive detectors (PSD) measure the distribution of scattered neutrons and are essential tools for neutron scattering experiments. Various types of neutron detectors used at neutron diffractometers are conventional tube detectors, 1-D and 2-D PSDs. Korea Atomic Energy Research Institute (KAERI) has been developing various kinds of PSDs to improve the instrument performance and to develop new scattering instruments. Our development work is initiated with 1-D PSD for residual stress analysis spectrometer and finally the technology is extended to development of 2-D PSD with planar and curved geometry. All PSDs are based on multiwire grid assembly with delay line readout method for position encoding, as the response is faster than charge division method and enables higher count rate capability. Design details and operational characteristics of some of the PSDs developed, for application at neutron scattering instruments are presented. |
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Keywords: | Gas-filled proportional counters position sensitive detectors neutron scattering and diffraction |
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