Neutron Yields Based on Transport Calculation in EAST ICRF Minority Heating Plasmas

LI Xiaoling (李晓玲); WAN Baonian (万宝年); GUO Zhirong (郭智荣); ZHONG Guoqiang (钟国强); HU Liqun (胡立群); LIN Shiyao (林士耀); ZHANG Xinjun (张新军); DING Siye (丁斯晔); LU Bo (吕波)

doi:10.1088/1009-0630/15/5/03

Plasma Science and Technology > 2013 > 15(5): 411-416. > DOI: 10.1088/1009-0630/15/5/03

LI Xiaoling (李晓玲), WAN Baonian (万宝年), GUO Zhirong (郭智荣), ZHONG Guoqiang (钟国强), HU Liqun (胡立群), LIN Shiyao (林士耀), ZHANG Xinjun (张新军), DING Siye (丁斯晔), LU Bo (吕波). Neutron Yields Based on Transport Calculation in EAST ICRF Minority Heating Plasmas[J]. Plasma Science and Technology, 2013, 15(5): 411-416. DOI: 10.1088/1009-0630/15/5/03

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Neutron Yields Based on Transport Calculation in EAST ICRF Minority Heating Plasmas

1 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China 2 Wuhan Second Ship Design and Research Institute, Wuhan 430064, China

Funds: supported by National Natural Science Foundation of China (Nos. 10725523, 10721505) and National Magnetic Confinement Fusion Science Program of China (No. 2010GB106004)

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Received Date: December 06, 2011

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Abstract

Abstract

Neutron diagnostics, including °ux and energy spectrum measurements, have been applied on the experimental advanced superconducting tokamak (EAST). The absolute calibration of neutron yields has been achieved by a calculation method using the Monte Carlo automatic modeling (MCAM) system and the Monte Carlo N-Particles (MCNP) code. Since the neutron yield is closely related with the ion density and temperature, it is a good measure of plasma performance, especially the wave heating e®ect. In ion cyclotron range of frequencies (ICRF) experiments, the increase in the ion temperature derived by the neutron yield indicates an e®ective plasma heating. Minority protons damp a large fraction of the total wave power, and then transfer part of the energy to deuterium by collisions. Neutron spectrum measurements also indicate that no tail is created by high energy deuterons during ICRF heating. However, the ion temperature derived by the neutron yield is consistent with the result by using a poloidal X-ray imaging crystal spectrometer (PXCS), showing a reliable transport calculation.
- neutron yield,
- MCNP,
- ICRF,
- minority heating

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