Bremsstrahlung spectrum data for thick targets by keV electrons

The dataset presented here is supplemental material for our paper published in Nuclear Instruments and Methods in Physics Research B 267 (2009) 3495-3499 (Lixia Tian, et al), entitled “Bremsstrahlung spectra produced by kilovolt electron impact on thick targets”. Experimental details have been given in this paper. The dataset includes our measured bremsstrahlung spectra on Al, Ti, Zr, Mo, and W thick targets for 5, 10, 15, 20, and 25 keV electron impact.
Please notice that the experimental bremsstrahlung spectra in this dataset are multiplied by some factors (i.e., 3, 10, 30, 100 for 10, 15, 20, and 25 keV, respectively ) except for the case of 5 keV incident electron energy.
The X-ray detector used in our experiment was an Ortec Si(Li) detector which was in vacuum, some detector parameters provided by the manufacturer were given in Tian et al's NIMB paper, and the detector active diameter was 4 mm. In our experiment, we made use of standard point sources to calibrate the detection efficiency of this X-ray detector (i.e., figure 1 in Tian et al's NIMB paper). Based on the figure 1 in Tian et al's NIMB paper, we can deduce the solid angle subtended by the detector, it was 0.003351, therefore we can estimate that the distance from the detector to the target was about 6.124 cm. These information may be useful for Monte Carlo simulations.

本数据集系补充我们发表于《核仪器与方法物理研究B》第267卷（2009年）第3495-3499页的论文《千伏电子轰击厚靶产生的轫致辐射谱》之材料。实验细节已在该论文中详细阐述。数据集包含了我们对铝、钛、锆、钼和钨厚靶在5、10、15、20和25 keV电子轰击下的轫致辐射谱的测量结果。请注意，本数据集中的实验轫致辐射谱除5 keV入射电子能量外，均乘以某些系数（即10、15、20和25 keV对应的系数分别为3、10、30和100）。实验中使用的X射线探测器为Ortec Si(Li)探测器，该探测器处于真空状态，制造商提供的部分探测器参数已在Tian等人在《NIMB》论文中给出，探测器有效直径为4 mm。在实验中，我们利用标准点源校准了该X射线探测器的检测效率（即Tian等人在《NIMB》论文中的图1）。根据《NIMB》论文中的图1，我们可以推算出探测器所截取的立体角为0.003351，因此可以估算出探测器与靶之间的距离约为6.124 cm。这些信息可能对蒙特卡洛模拟有所帮助。