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对氚化钛膜表面氧化层厚度对氘氚中子产额的影响进行了理论与实验研究。理论计算表明,能量为120keV的氘核入射氚化钛膜的深度为833nm,入射钛氧化层的深度为527—577nm。实验结果表明,氧化层降低了氘氚反应的中子产额,且中子产额随氧化层厚度的增加而减小,氧化层厚度低于220nm,中子产额与氧化层厚度的线性关系为Y=(7.524-0.01326X)×106。
The effects of the thickness of the oxide layer on the deuterium and tritium neutron yield of the tritiated titanium film were theoretically and experimentally studied. Theoretical calculations show that the depth of the incident titanium oxide layer is 527-577 nm at a depth of 833 nm for a deuterium core with a energy of 120 keV. The experimental results show that the oxide layer reduces the neutron yield of deuterium-tritium reaction, and the neutron yield decreases with the increase of the oxide layer thickness. The oxide layer thickness is lower than 220 nm. The linear relationship between the neutron yield and the oxide layer thickness Y = (7.524-0.01326X) × 106.