engleski

Absolute-scale determination of bremsstrahlung following photoabsorption of incident x and gamma rays

The spectrum of bremsstrahlung due to photoelectrons ejected by incident photons of energy 59.5 keV was measured on absolute scale. A coincidence experimental setup with two HP germanium detectors was used. One detector served as the target as well as the detector of ejected electron and another (second) detector served as the detector of bremsstrahlung radiation. The applied experimental method gives a very clean bremsstrahlung spectrum which can be reliably determined on absolute scale in low- and mid-energy range. Detailed processing of the data is presented, including calculations of all other processes, which have also been recorded in the experiment. A simple theoretical model for the bremsstrahlung of photoelectrons in an infinitely-thick target is applied and the results are compared with experimental values. A good agreement between the theoretical and experimental results has been obtained.

Bremsstrahlung of photoelectrons; germanium target;; incident photons of energy 59.5 keV; two germanium detectors in coincidence; simple theoretical model for bremsstrahlung of photoelectrons

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