Bremsstrahlung Spectrum of the 1000 MeV Electronsynchrotron at Frascati

摘要

The final results of some measurements on angular distri¬bution and on Bremsstrahlung spectrum of the γ-ray beam of the Frascati electronsynchrotron are given. The experimental results of angular distri¬bution for thick target fit with Schiff's theoretical angular distribution. We find, on the contrary, a difference between theory and experiments for thin target and this can be explained by multiple crosses through the target of the accelerated electrons. For the spectrum shape, comparing - the experimental results with Bethe and Heitler's theory, we have that for thin target the experimental points are. in fair agreement with the theoretical previsions while for thick target;we find a difference in the high energy range and we see that this difference can be explained by many different reasons.