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http://dx.doi.org/10.14407/jrp.2013.38.3.143

Measurement of neutron spectra in MC50 cyclotron using Bonner sphere spectrometer with LiI scintillation detector  

Ha, Wi-Ho (Korea Institute of Radiological and Medical Sciences)
Park, Seyoung (Korea Institute of Radiological and Medical Sciences)
Yoo, Jaeryong (Korea Institute of Radiological and Medical Sciences)
Yoon, Seokwon (Korea Institute of Radiological and Medical Sciences)
Lee, Seung-Sook (Korea Institute of Radiological and Medical Sciences)
Kim, Jungho (Korea Research Institute of Standards and Science)
Kim, Jong Kyoung (Hanyang University)
Publication Information
Journal of Radiation Protection and Research / v.38, no.3, 2013 , pp. 143-148 More about this Journal
Abstract
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.
Keywords
LiI scintillation detector; Bonner sphere spectrometer; MC50 cyclotron; Neutron spectra;
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