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在 2× 1 7MV串列加速器上用7Li(p ,n) 7Be、T(p ,n) 3He、D(d ,n) 3He和T(d ,n) 4 He核反应产生的 2 0keV～ 19MeV单能快中子对中国原子能科学研究院研制的固体气泡损伤探测器进行了刻度。结果表明 :该探测器对快中子的探测阈能约为 10 0keV ,阈能处中子探测效率急剧上升约 3个数量级 ,阈能以上效率曲线基本平坦 ,中子探测效率约为 1 5× 10 - 4。这种探测器可用于中子能谱和中子剂量测量
The 2 0 keV ~ 19 MeV single nuclei generated by the nuclear reaction of 7Li (p, n) 7Be, T (p, n) 3He, D (d, n) 3He and T (d, n) 4 He on a 2 × 1 7 MV tandem accelerator Can fast neutrons on the China Institute of Atomic Energy developed a solid bubble damage detector was scored. The results show that the detector has a fast detection threshold of about 10 keV for fast neutrons and a neutron detection efficiency of about 3 orders of magnitude for the threshold energy. The efficiency curve above the threshold energy is basically flat, and the neutron detection efficiency is about 15 × 10 - 4. This detector can be used for neutron spectrum and neutron dose measurement