氘氚气体与CO₂在常温下的辐照性能研究

Researches on Irradiation Properties of Deuterium-Tritium Mixed Gases with CO₂ in Room Temperature

摘要: 进行了氘氚混合气体与CO₂辐照反应的压力监测、在线四极质谱和激光拉曼光谱、色谱分析及反应机理的机理计算。结果表明，在反应初期(2 min内)，反应体系的总压无明显且无CO产生；随着反应时间的延长(10 min后)，反应体系的总压呈逐渐下降且有CO产生；CO的产生量随混合体系的温度及氚的含量的增加而呈增加趋势；理论计算表明，CO₂直接与T2反应的可能性较低，在T+的作用下，CO₂与T2反应生成的主要产物为CO且反应体系以离子–分子反应为主；实验获得的反应速率与理论计算的吻合性较好。

Abstract: Pressure monitoring, quadrupole mass spectrometer, Raman spectrum, color spectrum, and the-oretical arithmetic were carried out on the reaction deuterium-tritium mixed gases and CO₂. The results declare that the pressure variation of the reaction system is not patency, and there is no CO engender in reaction initial stage (<2 min). With the reaction proceeding (>10 min), the pressure variation of the reaction system becomes downtrend and CO starts producing, and the CO output increases with the raise of the temperature and tritium content. The theoretical arithmetic results show that the possibility for CO₂ and T2 direct reaction is low, but CO₂ can react with T2 under the effect of T+ generated by β irradiation, and CO is the main product of those reactions. Ionic molecule reactions are the main reactions for CO₂ and T2 system, and the experimental and theoretical results of reaction rate make a good accordance.