发表机构
Princeton University; University of Wisconsin-Madison（普林斯顿大学; 威斯康星大学麦迪逊分校）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文揭示热离子模式等离子体中蒸发冷却因电子-离子质量比及碰撞率对速度的敏感依赖而呈现独特机制，离子蒸发速率显著降低，对经济型核聚变具有潜在应用价值。
AI 中文摘要
本文展示了热等离子体中的蒸发冷却与其他介质（如中性气体或玻色-爱因斯坦凝聚体）中的蒸发冷却存在本质区别。等离子体中的根本差异源于完全电离等离子体中电子与离子之间的大质量比，以及等离子体碰撞率对速度异常敏感的依赖性。因此，热离子模式等离子体（$T_e < T_i$）被证明支持一种独特的蒸发冷却机制，其中离子蒸发速率出现显著降低。这一新机制可能对经济型核聚变方法有所应用，因为在核聚变反应速率中，离子尾部起着超常重要的作用。
英文摘要
It is shown how evaporative cooling in hot plasma is essentially different from evaporative cooling in other media, such as neutral gases or Bose-Einstein condensates. The fundamental difference in plasmas arises both from the large mass ratio between electrons and ions in fully ionized plasma and the unusually sensitive dependence of plasma collisionality on speed. Thus, a hot ion mode plasma ($T_e < T_i$) is shown to support a distinctive evaporative cooling regime, where a strong reduction in the ion evaporation rate appears. This new regime may have application to approaches to economical nuclear fusion, where the ion tail plays an outsized role in the fusion reaction rate.
Comments7 pages, 3 figures
