论文标题
在$^{60} $ CO源的放射性衰减中发出的两个伽玛射线之间的角相关性测量与两个NAI（TL）闪光灯
Measurement of the angular correlation between the two gamma rays emitted in the radioactive decays of a $^{60}$Co source with two NaI(Tl) scintillator
论文作者
论文摘要
我们实施了一个教学实验，以研究在典型的$^{60} $ co放射性衰减中发出的两个伽马射线之间的角相关性。我们使用了两个NAI（TL）闪光灯，已经在我们的实验室中可用，还有一个低活动性$^{60} $ CO来源。探测器安装在两个导轨上，源位于其中心。第一个导轨是固定的，而第二条可以围绕源旋转。我们通过将两个闪烁体之间的角度从$ 90^\ Circ $更改为$ 180^\ Circ $，进行了几个测量。还进行了专用的背景运行，从实验设置中删除了源。我们发现，信号速率随两个闪烁体之间的角度分离而增加，并且与理论期望的差异很小。
We implemented a didactic experiment to study the angular correlation between the two gamma rays emitted in typical $^{60}$Co radioactive decays. We used two NaI(Tl) scintillators, already available in our laboratory, and a low-activity $^{60}$Co source. The detectors were mounted on two rails, with the source at their center. The first rail was fixed, while the second could be rotated around the source. We performed several measurements by changing the angle between the two scintillators in the range from $90^\circ$ to $180^\circ$. Dedicated background runs were also performed, removing the source from the experimental setup. We found that the signal rate increases with the angular separation between the two scintillators, with small discrepancies from the theoretical expectations.
