Pulsed neutron generators based on the sealed chambers of plasma focus design with D and DT fillings

30th International Conference on Interaction of Intense Energy Fluxes with Matter

Yurkov, D.I.^1 ; Dulatov, A.K.^1 ; Lemeshko, B.D.^1 ; Golikov, A.V.^1 ; Andreev, D.A.^1 ; Mikhailov, Yu.V.^1 ; Prokuratov, I.A.^1 ; Selifanov, A.N.^1

All-Russia Scientific Research Institute of Automatics, Luganskaya 9, Moscow

115304, Russia^1

关键词: Deuterium-Tritium mixtures;    Hydrogen isotope;    Neutron generators;    Pulse neutron generators;    Pulsed neutron generator;    Scientific research institutes;    Sealed chambers;    Ultrafast process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/653/1/012019/pdf
DOI  :  10.1088/1742-6596/653/1/012019

来源: IOP

【 摘 要 】

Development of neutron generators using plasma focus (PF) chambers is being conducted in the All-Russia Scientific Research Institute of Automatics (VNIIA) during more than 25 years. PF is a source of soft and hard x-rays and neutrons 2.5 MeV (D) or 14 MeV (DT). Pulses of x-rays and neutrons have a duration of about several tens of nanoseconds, which defines the scope of such generators - the study of ultrafast processes. VNIIA has developed a series of pulse neutron generators covering the range of outputs 107-1012n/pulse with resources on the order of 103-104switches, depending on purposes. Generators have weights in the range of 30-700 kg, which allows referring them to the class of transportable generators. Generators include sealed PF chambers, whose manufacture was mastered by VNIIA vacuum tube production plant. A number of optimized PF chambers, designed for use in generators with a certain yield of neutrons has been developed. The use of gas generator based on gas absorber of hydrogen isotopes, enabled to increase the self-life and resource of PF chambers. Currently, the PF chambers withstand up to 1000 switches and have the safety of not less than 5 years. Using a generator with a gas heater, significantly increased security of PF chambers, because deuterium-tritium mixture is released only during work, other times it is in a bound state in the working element of the gas generator.