脉冲离子束作用下金属氚化物氦释放测量技术研究

Experimental Study of ³He Release from Metal Tritide under Bombardment of Pulsed Ion Beam

摘要: 为认识脉冲离子束作用下金属氚化物的氦释放行为，建立了脉冲离子束作用下金属氚化物氦释放测量系统。利用标准体积气体取样装置，采用气体反扩散法，对系统的容积比、灵敏度进行了实验标定。在此基础上，发展了脉冲离子束作用下金属氚化物氦释放的测量技术，开展了脉冲离子束作用下金属氚化物氦释放实验研究。结果显示，单次脉冲离子束作用下金属氚化物的氦释放呈脉冲式，释放量最大可达10¹³个原子以上。

Abstract: An experimental system for the measurement of ³He release from metal tritide was established to explore ³He release behavior under the bombardment of pulsed ion beam. The volume ratio and sensitivity of this system were calibrated by the gas back-diffusion method using air sample device and standard volume gas sample device. Based on this, an experimental technology for the measurement of ³He release under the bombardment of pulsed ion beam was developed. The ³He release of metal tritide was studied under the bombardment of pulsed ion beam. It indicates that the ³He release is in pulse, and the ³He atoms per pulse is up to 10¹³.