Abstract
AbstractThe spectra of photoelectrons created by AlKα X‐rays are investigated in CsJ, CsF, LiJ, and LiF photocathodes. The energy distributions of the photoelectrons are determined by measuring the photoelectric current between two concentric spherical electrodes with a variable retarding potential between them. For a LiF target, the electron spectrum is analysed quantitatively using an analytical model for the energy distribution of the K photo and K → LL Auger electrons from fluorine atoms. A strong deviation from Whiddington's law is found for the penetration model of the electrons.
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