This study investigated the clinical performance of a novel solid-state diagnostic dosimeter, the RaySafe Xi transparent detector, by comparing its performance to a reference-class ionization chamber. Firstly a comparison of dosimeter response "free-in-air" with standard beam qualities was made, followed by an investigation into its relative transparency in an X-ray field and angular sensitivit...

This paper aims to inform the public and scientists not in the field of radioactivity on the way secondary activity measurements are undertaken at NMISA to ensure the quality of life of South Africans. Various secondary standard nuclear instruments are used for routine activity measurements for dissemination to the user community such as the nuclear medicine industry. Three instrument types are...

The response of an integrating ionization chamber at 10 g/cm •' depth in the atmosphere to particles of various rigidities is evaluated by using the change of ionization with latitude. This procedure yields the differential response curves at solar minimum and solar maximum and also the mean rigidity of response at any given latitude. For high latitude and Minneapolis, the mean responses are 2....