Additional radiation factors in high-current electron accelerators

Abstract

The direct discharge of a pulsed high-voltage generator into a vacuum diode is preferably used in high-current electron accelerators of the first generation. One of the accelerators of this type is the MIG-5000 [i], which at a distance of one meter from the target renders a bremsstrahlung dose race of up to 0.28,10 s C/(kg~sec) at a pulse duration T i = 10 -6 sec and a current of about i0 ~ A. The pulsed operation of the vacuum diode and its mounting behind a radiation-protection shield reduce the radiation in industrial installations co the admissible levels. Only the activity induced by ~--n reactions was considered as an additional source of radiation hazard. However, since the quantum energy is low (Em ax = 2~5 MeV), this factor can be disregarded.