Magnetic discharge accelerating diode for the gas-filled pulsed neutron generators based on inertial confinement of ions

2nd Conference on Plasma & Laser Research and Technologies

Kozlovskij, K.I.^1 ; Shikanov, A.E.^1 ; Vovchenko, E.D.^1 ; Shatokhin, V.L.^1 ; Isaev, A.A.^1 ; Martynenko, A.S.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe shosse 31, Moscow

115409, Russia^1

关键词: Accelerating voltages;    Discharge volume;    Inertial confinement;    Pulsed high voltage discharge;    Pulsed neutron generator;    Research results;    Space charge compensation;    Volume discharges;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/747/1/012006/pdf
DOI  :  10.1088/1742-6596/747/1/012006

来源: IOP

【 摘 要 】

The paper deals with magnetic discharge diode module with inertial electrostatic ions confinement for the gas-filled pulsed neutron generators. The basis of the design is geometry with the central hollow cathode surrounded by the outer cylindrical anode and electrodes made of permanent magnets. The induction magnitude about 0.1-0.4 T in the central region of the discharge volume ensures the confinement of electrons in the space of hollow (virtual) cathode and leads to space charge compensation of accelerated ions in the centre. The research results of different excitation modes in pulsed high-voltage discharge are presented. The stable form of the volume discharge preserveing the shape and amplitude of the pulse current in the pressure range of 10-3-10-1Torr and at the accelerating voltage up to 200 kV was observed.