THE STUDY ON THE LEAKAGE OF THE THERAPEUTIC X-RAY TUBES

Abstract

The writers investigated the leakage from four kinds of therapeutic X-ray tubes now operating in the University Hospital of Kanazawa with following results. The leaking dose was, in general, rather large. For example, it amounted to 440 mr. in hour at one meter under loading of 200 kVp. 25 mA. So the writers concluded that more strict control of X.ray apparatus should be employed in Japan.