摘要
携带式的软β剂量仪可监测放射源钜147Pm对环境的污染,确保人身安全。提高软β剂量仪探测效率的关键是选择低噪声的光电倍增管、研制最佳的对三联苯闪烁晶体及设计合适的电子线路。根据147Pm的β粒子能量的特点,用0.618序贯化法和实验的方法研制的最佳厚度对三联苯闪烁晶体的探测效率达27%.
To inspect the pollution released by Hard Iron (a kind of radioactive source Pm),a kind of portative soft-βdosage instrument is needed.According to the energy specialty of β-particle of Pm,the three most important things to be done for improving the detective efficiency are: to choose a low-noise photoelectrical multiple-canal; to develop the flickering three-united-benzene crystal; and to design the appropriate electrical circuits.The most adaptive flickering three-united-benzene crystal has been developed from experiments.The detective efficiency could reach to twenty-seven percent.
出处
《桂林电子工业学院学报》
2003年第6期91-93,共3页
Journal of Guilin Institute of Electronic Technology
