《光電子光譜學:原理和應用(第3版)內容為：Since the completion of the manuscript for the first edition of PhotoelectronSpectroscopy, the field has undergone a steady growth.Firstly, the theory has been refined and condensed into a manageableform. Secondly two important experimental developments have occurred. Theresolution that can be obtained is now of the order of 3 meV, which corre-sponds approximately to an energy of 30 kBK. This means that photoelectronspectroscopy can now obtain data with an accuracy similar to that achievedin standard thermodynamic experiments （such as specific heat experiments）,thus facilitating a direct comparison of data from the two different types ofexperiment. The second important experimental advance is that one can nowreadily measure electron energy distributions over a solid angle of almost This yields valuable information whenever these electron energy distributionshave anisotropies.