SIXA阵列Si（Li）探测器电极厚度测量
Electrode thickness measurement of a Si(Li) detector for the SIXA array
摘要：
SIXA X射线光谱仪阵列的Si（Li）检测器元件的阴极电极由金-钯合金接触层形成。通过观察由单色同步辐射激发的金的特征L壳层X射线，测量一个元素中的金的等效厚度，其中光子能量高于金的L3吸收边。在低于L2边缘的4个不同光子能量下获得的结果产生22.4（35）nm的平均值，这与从检测效率测量中提取的早期结果一致。PACS：29.40.Wk; 85.30.De; 07.85.Nc; 95.55.Ka关键词：Si（Li）探测器，X射线光谱仪，X射线荧光，探测器校准，金电极，同步辐射
英文摘要：
Cathode electrodes of the Si(Li) detector elements of the SIXA X-ray spectrometer array are formed by gold-palladium alloy contact layers. The equivalent thickness of gold in one element was measured by observing the characteristic L-shell X-rays of gold excited by monochromatised synchrotron radiation with photon energies above the L3 absorption edge of gold. The results obtained at 4 different photon energies below the L2 edge yield an average value of 22.4(35) nm which is consistent with the earlier result extracted from detection efficiency measurements. PACS: 29.40.Wk; 85.30.De; 07.85.Nc; 95.55.Ka Keywords: Si(Li) detectors, X-ray spectrometers, X-ray fluorescence, detector calibration, gold electrodes, synchrotron radiation
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