X-Ray Isochromat and Continuous Spectrum of Aluminum

Abstract

The X-ray spectrum of metallic aluminum was investigated near the short wavelength limit at the excitation voltage 9.3 kV by the isochromat and photographic methods. The apparatus used consists of an ultra-high vacuum X-ray tube, a curved quartz crystal spectrometer and an automatic counting system with a GM counter. The gross structures of the continuous spectrum and the isochromat were observed to be similar except for the details. Discussions were made in connection with the characteristic energy loss and the density of states of the electrons.