Research of Method for Activity Measurement of Neutron-Activation-Foil
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摘要: 提出了利用4πβ-γ符合装置,不制作薄膜源情况下测量中子活化片活度的新方法。通过改变光电倍增管电压,使γ道探测器对γ光子和K层特征X射线探测效率一致,不进行效率外推,便可得到中子活化片活度。理论分析表明该方法可行。Abstract: This paper puts forward a new method measuring the activity of neutron-activation-foil using 4πβ-γ coincidence equipment without making thin film source.By changing the voltage of photomultiplier tube,keeping the same efficiency of the γ detector in detection of γ photon and X ray of K shell,we can obtain the activity of neutron-activation-foil,without using efficiency extrapolation method.Theory analysis indicates that the method is feasible.
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Key words:
- Neutron-activation-foil /
- Activity /
- 4πβ-γ coincidence /
- Directness measurement
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