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The charge exchange process between C6+ and He+ ions: computation of cross sections and comparison with some data from fusion plasmas

F Sattin, M Valisa, L Carraro, M E Puiatti, P Scarin2000年Plasma Physics and Controlled FusionIF 2.2出版社

The total and partial cross sections for the capture process C6++He+C5++He2+are computed at impact energy in the range 0.1-40 keV amu-1using the classical trajectory Monte Carlo (CTMC) method. Rate coefficients, which are used in practical applications, are estimated by assuming Maxwellian energy distributions for both incident and target ions, and are used to compute the intensity of the hydrogen-like carbon Lyman series lines in a fusion plasma. A comparison with the line ratios measured in a reversed field pinch device is made. It is shown that this charge exchange process is not likely to sensitively alter line ratios in helium fusion plasmas.

日本語訳

捕獲過程C6++He+C5++He+の全断面積および部分断面積を、衝突エネルギー0.1〜40 keV amu-1の範囲で古典軌道モンテカルロ(CTMC)法を用いて計算した。実用的な応用で用いられる速度係数は、入射イオンと標的イオンの両方についてマクスウェルエネルギー分布を仮定することによって推定され、核融合プラズマ中の水素様炭素ライマン系列輝線の強度を計算するために用いられた。逆転磁場ピンチ装置で測定された輝線強度比との比較が行われた。この電荷交換過程は、ヘリウム核融合プラズマにおける輝線強度比を鋭敏に変化させる可能性は低いことが示された。

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