LaBr3：Ce和LaCl3：Ce晶体对同步辐射X射线的非比例响应
Nonproportional response of LaBr3:Ce and LaCl3:Ce scintillators to synchrotron X-ray irradiation
摘要：
用高单色同步辐射测量了掺5%Ce ~（3+）的LaBr_3和掺10%Ce ~（3+）的LaCl_3的非比例闪烁响应。为了估计光子响应，测量了在9 keV和100 keV之间的许多精细间隔的能量值处的脉冲高度谱。实验是在德国汉堡的汉堡同步辐射实验室（HASYLAB）同步辐射设施的X-1光束线上进行的。特别注意的是X射线荧光逃逸峰，因为它们为我们提供了额外的信息，光子响应范围为1.2 - 14.5 keV的LaBr 3：Ce和2.0 - 11.6 keV的LaCl 3：Ce。在镧K-电子结合能附近观察到两种晶体的光子响应曲线的快速变化。围绕这个能量进行密集的数据采样，这些数据用于应用一种方法，我们称之为K-浸渍光谱法。这种方法使我们能够得到的电子响应曲线的LaBr 3：Ce和LaCl 3：Ce的能量低至0.1千电子伏。
英文摘要：
The nonproportional scintillation response of LaBr3 doped with 5% Ce3+ and of LaCl3 doped with 10% Ce3+ was measured using highly monochromatic synchrotron irradiation. To estimate the photon response, pulse height spectra at many finely spaced energy values between 9 keV and 100 keV were measured. The experiment was carried out at the X-1 beamline at the Hamburger Synhrotronstrahlungslabor (HASYLAB) synchrotron radiation facility in Hamburg, Germany. Special attention was paid to the X-ray fluorescence escape peaks as they provide us with additional information about photon response in the range 1.2 - 14.5 keV for LaBr3:Ce and 2.0 - 11.6 keV for LaCl3:Ce. A rapid variation of the photon response curve is observed near the Lanthanum K- electron binding energy for both scintillators. A dense sampling of data is performed around this energy and that data are used to apply a method, which we call K-dip spectroscopy. This method allows us to derive the electron response curves of LaBr3:Ce and LaCl3:Ce down to energies as low as 0.1 keV.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
