Bremsstrahlung spectra from roentgen tubes

Abstract

A Nal (Tl) scintillation spectrometer was used to study spectra of bremsstrahlung from thick tungsten target roentgen tubes operating at constant potentials between 25 and 250 kv. Measured pulse height distributions were corrected with an automatic computer. Relative intensity of K roentgen radiation at different tube voltages was studied and spectra obtained with different filters were compared with those calculated from the corresponding measurements of the unfiltered radiation. A method was developed for deriving the shape of roentgen spectra produced by roentgen tubes operating at pulsating potentials of various wave forms.