A Simple Apparatus for Studies of UV-Bremsstrahlung

The basic principles of a simple apparatus for efficient recording of Bremsstrahlung in the UV-range is outlined. The radiation is analyzed with the use of a bandpass filter which is composed of a VUV window and a photocathode. The electrons from the photocathode are counted with a channeltron. Spectra of polycrystalline W obtained with LiF and CaF2 windows are reported.