CHEN Yuqing, WU Bin, WANG Jinfang, et al. Analysis of fusion neutron production in EAST with neutral beam injection[J]. Nuclear techniques, 2013, 36(11): 110603
CHEN Yuqing, WU Bin, WANG Jinfang, et al. Analysis of fusion neutron production in EAST with neutral beam injection[J]. Nuclear techniques, 2013, 36(11): 110603 DOI: 10.11889/j.0253-3219.2013.hjs.36.110603.
Background: The neutron emission rate increases rapidly with high-power deuterium beam injected into deuterium plasmas. It is necessary to calculate the neutron production in Experimental Advanced Superconducting Tokamak(EAST) for the radiation safety. Purpose: We aim to provide reference for developing new detection systems of fusion neutron and neutron radiation shielding design. Methods: Neutron emission rate was calculated using the typical particle model and analysis method. The relationships were analyzed among the fusion neutron production and the ion density
ion temperature
neutral beam energy and neutral beam power respectively. Results: The results demonstrated that the total fusion neutron production was 1016 n·s-1 with 80-keV
4-MW neutral beam injection. Conclusion: Neutron intensity in EAST will increase by a factor of ten when appropriate neutral beam injection is applied. It can be referred for further performance improvement and radiation protection of EAST.