Study on application of luminescence solution using a high performance feeble light source with a radiation source

我们研制了一种由闪烁体和伽马射线源组成的高性能参考微弱光源。该光源对精确测量微弱光测量仪器的稳定性很有用，因为闪烁体的发光量仅取决于相同配置下的伽马射线源的半衰期。采用对伽马射线效率高的BGO晶体作为闪烁体。用直径6英寸的积分球、光电倍增管、光电二极管和带有塑料光纤光导的光谱仪测量微弱的光。在该系统中，BGO闪烁体的发光量被精确测量，这导致了对传统设备(如发光计)的成功校准。

We developed a high performance reference feeble light source composed of a scintillator and a gamma-ray source. This light source is useful to precisely measure the stability of feeble light measurement instruments, because the amount of luminescence from the scintillator depends only on the half-life of the gamma-ray source under the same configuration. A BGO crystal with the large efficiency for gamma rays was used as a scintillator. The feeble light was measured with an integrating sphere 6 inch in diameter, a photomultiplier tube, a photo diode and a spectrometer with a light guide of a plastic fiber. In this system, the amount of luminescence from the BGO scintillator was precisely measured, which led to successful calibration of conventional devices such as luminometers.