2013 Fiscal Year Final Research Report
Study on Beam Colliding Fusion by Spherical Ion Focus in Inertial Electrostatic Confinement Plasmas
| Project/Area Number |
22686011
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied physics, general
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| Research Institution | Kyoto University |
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Principal Investigator |
MASUDA Kai 京都大学, エネルギー理工学研究所, 准教授 (80303907)
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| Research Collaborator |
KIPRITIDIS John 京都大学, エネルギー理工学研究所, 研究員
KAJIWARA Taiju 京都大学, 大学院・エネルギー科学研究科, 博士後期課程学生
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | プラズマ / イオンビーム / 核融合 / 慣性静電閉じ込め / 空間電荷効果 / マグネトロン放電 / 核融合反応計測 / 放電シミュレーション |
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| Research Abstract |
We proposed a new inertial electrostatic confinement (IEC) fusion scheme which aims 'beam-beam' collisions between converging energetic ions with the aid of an internal ring-shaped magnetron ion source. Unlike linear dependence in the other existing IECs, experimental results showed fusion rate proportional to square of cathode grid current, which is encouraging for a drastic improvement in the fusion rate though it is also implied by experiments that a linear contribution from 'beam-target' collisions are still predominant under the present operating conditions. Also, a new scheme employing multistage electrode system was studied. The numerical simulations showed a possible drastic enhancement in the beam-beam fusion rate owing to an improved spherical symmetry of electrostatic potential distribution.
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