摘要
在ICF总体实验中,用法拉第杯首次测量了腔靶离子飞行时间谱,相应得到飞行速度谱,进而得到腔靶内爆区的快离子特性。实验表明,腔靶等离子体从飞散速度上分三四群,不象平面靶分快慢两群。同时确认在间接驱动靶内爆区存在着从源区进入的速度高达10~8cm/s的快离子,对高效爆聚具有破坏性。
The characteristics of ions emission from laser -produced plasma in hohlraum is presented here. It differs obiviously from two - temperature electron velocity distribution observed in laser -planar target interaction, and presents a multi - temperature electron velocity distribution. This phenomenon reflects the evolution of plasma state in a hohlraum target. Furthermore, experimental results have shown that the DT fuel pellet placed in the hohlraum is probably bombarded by the fast ions in the explosion experiments.
出处
《强激光与粒子束》
EI
CAS
CSCD
1992年第3期455-460,共6页
High Power Laser and Particle Beams
关键词
离子发射特性
腔靶
飞行时间谱
hohlraum target, time of flight, ion velocity distribution, fast ion.
