ICF冷冻靶微管充气过程中气体压力测量  

Gas pressure measurement in ICF cryogenic target micro-tube gas-filling process

作　　者：林伟[1] 王凯[1] 毕鹏[1,2] 黎军[1] 马坤全[1] 唐永建[1] 雷海乐[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]四川大学原子与分子物理研究所,成都610065

出　　处：《强激光与粒子束》2012年第10期2343-2346,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(51006093)

摘　　要：利用自主设计的冷冻靶微管充气系统,通过在常温环境下向靶盒注入氘气,研究了充气管两端压强差与充气管长度、充气速率及充气时间之间的相互关系。研究表明:微管注入法充气过程中,充气管两端的压强差先增大然后减小最终趋于0;充气管长度越小,充气速率越大,充气管两端压强差达到平衡所需的时间越短。该实验结果与根据修正后的Hagen-Poiseuille方程所得到的理论计算值相吻合。A self-designed micro tube gas-filling system was used to fill cryogenic targets with deuterium gas in normal tem- perature. The relationships between difference of gas pressure at the two ends of gas-filling tube and tube length, gas-filling rate and gas-filling time were studied. The results show that the gas pressure difference first increses and ultimately decreases to zero, The time required for gas pressure equilibrium tends to be shorter when gas-filling tube length decreases and gas-filling rate in- creases. The experimental results are in good agreement with the prediction on the basis of the Hagen-Poiseuille equation.

关 键 词：惯性约束聚变 冷冻靶 充气 压强差 

分 类 号：O351[理学—流体力学]