Accurate measurements of the pitch-angle scattering of beam ions
Accurate measurements of the pitch-angle scattering of beam ions
复制标题
精确测量束离子的俯仰角散射
DOI：
10.1063/1.1423622
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发表时间：
2001
影响因子：
2.2
通讯作者：
W. Heidbrink
中科院分区：
文献类型：
--
作者：
W. Heidbrink
在诊断良好的、相对安静的、磁约束的重离子等离子体中，测量了75keV的稀离子的俯仰角散射率。中性粒子诊断技术在注入束离子10ms的短脉冲后检测速度空间中的快离子密度。将这些数据与由许多小角度库仑散射事件引起的速度空间中的经典扩散理论进行了比较。在≲为15%的不确定度范围内，数据证实了经典理论。
The pitch-angle scattering rate of a dilute population of 75 keV deuterium ions is measured in a well-diagnosed, relatively quiet, magnetically-confined deuterium plasma. Neutral particle diagnostics detect the fast-ion density in velocity space following a short 10 ms pulse of injected beam ions. The data are compared to the classical theory of diffusion in velocity space caused by many, small-angle, Coulomb-scattering events. Within uncertainties of ≲15%, the data confirm the classical theory.