氙灯的瞬态放电特性研究  

Transient Property of Xenon Flashlamp Discharge

作　　者：张华[1] 范滇元[2] 

机构地区：[1]南通师范学院物理系,南通226007 [2]中国科学院上海光机所,上海201800

出　　处：《光学精密工程》1999年第4期28-34,共7页Optics and Precision Engineering

基　　金：863 计划416 主题青年基金

摘　　要：建立了求解氙灯 Ｌ Ｃ 供电网络电路模拟计算程序，与以往的模型相比，我们在 Ｍ Ｅ Ｈ 理论的基础上考虑了氙灯放电过程中等离子体直径随时间的变化关系，因而可以更准确地研究大口径氙灯的放电特性。根据国内外的实验和计算结果对模拟程序进行了校核。结果表明：在氙灯放电开始时，等离子体放电柱的膨胀可以不受灯壁的影响；在放电后期，放电柱的膨胀要受灯壁的影响，因此，等离子体的膨胀过程对电流波形有影响。但在大能量长脉冲放电情况下，大口径氙灯的等离子体也可以充满内径。The paper presents an improving computer code of solving the LC net circuit used in inertial confinement fusion and accurately indicates the instantaneous property of large bore flashlamp discharge. We considered the expansion of plasma arc during a pulse basic on the well known MEH theory. It is shown that the early part of the expansion is independent of the lamp diameter. However, at some point in the expansion, the presence of the flashlamp wall becomes important, and the current pulse is dependent of the arc expansion. But under the condition of large energy and long pulse the plasma arc may fill the flashlamp bore.

关 键 词：惯性约束核聚变 氙灯 MEH理论 瞬态放电特性 

分 类 号：TM923.323[电气工程—电力电子与电力传动]