Abstract
Abstract The formative time of a Penning discharge was experimentally investigated and is described here. A controllable triode Penning system and pulse circuit technique were used for the purpose. It was experimentally established that at mean values of the magnetic field and anode voltage and at high vacuum this formative time is of the order of hundreds of microseconds. With an increase of the electrical and magnetic field and of the pressure, the discharge's formative time decreases. The experimentally obtained dependences were compared with those given by the theory of classical cross-field mobility of electrons. The long duration of the formative time, as well as of the other transient phenomena in the Penning discharge, characterize it as very slow in comparison with other types of self-maintained discharges.
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