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一、前言近年来,光电子能谱方法得到迅速发展,已成功地用来研究基础学科和应用技术中提出的各种科学问题。这门技术的基础是精确测定物质中束缚电子的结合能量。一台光电子能谱仪的主要部件有激发光源、电子能量分析器、探测器和记录控制系统(电子计算机)等。从激发源来的单能量光子束照射样品,处于样品中的束缚电子被电离而射出,光电子在能量分析器中被“色散”、聚焦而由探测器接收。探测器输出的脉冲信号经放大、甄别、整形而输入记录控制系统。最后将信号输送到x-y记录仪控制其y轴。对光电子能量的扫描由连续地或步进地控制分析器电压(或电流)
I. Introduction In recent years, the photoelectron spectroscopy method has been rapidly developed and has been successfully used to study the various scientific issues raised in the basic and applied technologies. The basis of this technique is the precise determination of the binding energy of the bound electrons in the material. The main components of a photoelectron spectrometer are excitation light source, electronic energy analyzer, detector and recording control system (electronic computer). A single-energy photon beam from the excitation source illuminates the sample, the bound electrons in the sample are ionized and emitted, and the photoelectrons are “dispersed” in the energy analyzer, focused and received by the detector. The pulse signal output by the detector is amplified, screened and shaped and input into the record control system. Finally, the signal is sent to the x-y recorder to control its y-axis. Scanning of photoelectron energy is performed by continuously or step-by-step controlling the analyzer voltage (or current)