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KMID : 0364920130380030143
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Journal of Radiation Protection and Research
2013 Volume.38 No. 3 p.143 ~ p.148
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Measurement of neutron spectra in MC50 cyclotron using Bonner sphere spectrometer with LiI scintillation detector
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Ha Wi-Ho
Park Se-Young
Yoo Jae-Ryong
Yoon Seok-Won
Lee Seung-Sook
Kim Jung-Ho
Kim Jong-Kyung
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Abstract
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Operational nuclear facilities such as nuclear power plants and particle accelerators show various neutron spectra according to the type of facilities and specific position. Necessities of neutron dose management and neutron monitoring for radiation protection of radiation workers in such a kind of facilities have continuously increased in recent years. Bonner sphere spectrometers are widely used for measurement of neutron spectra. Data on response function of neutron detector, default neutron spectra and count rates of Bonner sphere spectrometer are required to obtain unfolded neutron spectra in specific workplaces. In this study, we carried out measurement of neutron spectra produced in MC50 cyclotron using Bonner sphere spectrometer with LiI scintillation detector. Additionally, we estimated quantitative data on neutron flux, mean neutron energy and ambient dose equivalent rate according to the incident proton energies and positions in MC50 cyclotron.
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KEYWORD
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LiI scintillation detector, Bonner sphere spectrometer, MC50 cyclotron, Neutron spectra
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