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Lifetime of individual charged particles in a magnetic mirror trap

V.M. Balebanov, N.N. Semashko1967年被引用 8Nuclear FusionIF 3出版社

In the experiments described the authors measured the lifetime of individual charged particles (electrons) in a steady-state, axially symmetric magnetic mirror trap under certain definite particle injection conditions. The experiments confirmed that when the particles were reflected from the mirrors the change in magnetic moment Δμ/μ relative to the adia-baticity parameter was exponentially small. In the expression for Δμ/μ, the exponent and the pre-exponential factor were found for. an actual Ogra field configuration. Under conditions corresponding to absolute containment of the particles in the trap a marked increase in electron lifetime was observed. An expression was obtained for the change in the magnetic moment of a charged particle passing through a small magnetic field perturbation. The experimental results were found to be in satisfactory agreement with those obtained using this expression.

日本語訳

記載された実験において、著者らは、一定の明確な粒子入射条件下で、定常状態の軸対称磁気ミラー型トラップ内の個々の荷電粒子(電子)の寿命を測定した。実験により、粒子がミラーで反射されるとき、断熱パラメータに対する磁気モーメントの変化Δμ/μは指数関数的に小さいことが確認された。Δμ/μの式において、指数部と前指数因子は、実際のOgra磁場配位について求められた。トラップ内の粒子の絶対閉じ込めに対応する条件下では、電子寿命の顕著な増加が観測された。小さな磁場摂動を通過する荷電粒子の磁気モーメントの変化に対する式が得られた。実験結果は、この式を用いて得られた結果と満足できる一致を示すことがわかった。

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