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New Mechanism for Enhancing Ash Removal Efficiency and Reducing Tritium Inventory
作者姓名:李承跃  邓柏权  严建成
作者单位:[1]School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 [2]Southwestern Institute of Physics, PO Box 432, Chengdu 610041
摘    要:A new mechanism is suggested to suppress ash particle back streams in the divertor region of our fusion experimental breeder (FEB) reactor for enhancing the ash removal efficiency and reducing the tritium inventory by applications of the nonlinear effect of high power rf ponderomotive force potential which reflects the platereleased and re-ionized He^+ back to the plate. Meanwhile, the potential does not hinder α particles, which are coming from scraping of the layer, flowing to the target plate. However, it does stop tritium ions flowing to the target. Based on the FEB design parameters, our calculations have shown that the ash removal efficiency can be improved by as much as 40% if the parallel component of rf field 150-200 V/cm is applied to the location at a perpendicular distance L = 20 cm apart from the plate and the plate-recycling neutral helium atom energy is' about 0.75eV, at the same time, the tritium inventory can be reduced to some extent.

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修稿时间:2006-04-29

New Mechanism for Enhancing Ash Removal Efficiency and Reducing Tritium Inventory
LI Cheng-Yue,DENG Bai-Quan,YAN Jian-Cheng.New Mechanism for Enhancing Ash Removal Efficiency and Reducing Tritium Inventory[J].Chinese Physics Letters,2007,24(1):155-157.
Authors:LI Cheng-Yue  DENG Bai-Quan  YAN Jian-Cheng
Affiliation:School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 Southwestern Institute of Physics, PO Box 432, Chengdu 610041
Abstract:
Keywords:52  35  Mw  52  40  Db  52  55  Pi  28  52  -s
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