低强度空心玻璃微球充氘氚气体工艺研究

摘要: 采用分步法对低强度空心玻璃微球充氘氚气体。为了充气，建立一套高压系统，在15MPa下漏率为3.7×10-4 PaL/s。用铀床和LaNi5床组合起来，作为充气的高压气源。室温和250℃时，玻璃微球的最大承受压力为1.0MPa，内外压之比约0.51。在250℃时，对微球进行充气，充进微球内的氘氚气体量为0.51～0.54Mpa，满足了物理实验的要求。

Abstract: Step by step fill procedures for thin-wall hollow micro-sphere was applied. The leakage of the metal system was 3.7×10-4Pa L/s under the pressure of 15MPa. U and LaNi5 combination serve as good gas-resource，supplying high pressure. Both at the room temperature and 250℃, the shell can bear 1.0MPa and the pressure ratio of inside to outside was about 0.51. At 250℃,the pressure of D-T filled into the spheres was 0.51-0.54MPa,which satisfied the physical experiment requirement.