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Lifetime and shelf life of sealed tritium-filled plasma focus chambers with gas generator

Lifetime and shelf life of sealed tritium-filled plasma focus chambers with gas generator

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Abstract

The paper describes the operation features of plasma focus chambers using deuteriumetritium mixture. Handling tritium requires the use of sealed, vacuum-tight plasma focus chambers. In these chambers, there is an accumulation of the impurity gases released from the inside surfaces of the electrodes and the insulator while moving plasma current sheath inside chambers interacting with b-electrons generated due to the decay of tritium. Decay of tritium is also accompanied by the accumulation of helium. Impurities lead to a decreased yield of neutron emission from plasma focus chambers, especially for long term operation. The paper presents an option of absorption type gas generator in the chamber based on porous titanium, which allows to significantly increase the lifetime and shelf life of tritium chambers. It also shows the results of experiments on the comparison of the operation of sealed plasma focus chambers with and without the gas generator.

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DOI:10.1016/j.mre.2017.08.001

所属栏目:Research Article

收稿日期:2017-06-01

修改稿日期:2017-08-15

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B.D. Lemeshko:Federal State Unitary Enterprise All-Russian Research Institute of Automatics (FSUE VNIIA), 22 Suschevskaya st, Moscow, Russia
А.К. Dulatov:Federal State Unitary Enterprise All-Russian Research Institute of Automatics (FSUE VNIIA), 22 Suschevskaya st, Moscow, Russia
Yu V. Mikhailov:Federal State Unitary Enterprise All-Russian Research Institute of Automatics (FSUE VNIIA), 22 Suschevskaya st, Moscow, Russia
I.A. Prokuratov:Federal State Unitary Enterprise All-Russian Research Institute of Automatics (FSUE VNIIA), 22 Suschevskaya st, Moscow, Russia
A.N. Selifanov:Federal State Unitary Enterprise All-Russian Research Institute of Automatics (FSUE VNIIA), 22 Suschevskaya st, Moscow, Russia
T.S. Fatiev:Federal State Unitary Enterprise All-Russian Research Institute of Automatics (FSUE VNIIA), 22 Suschevskaya st, Moscow, Russia
V.G. Andreev:Federal State Unitary Enterprise All-Russian Research Institute of Automatics (FSUE VNIIA), 22 Suschevskaya st, Moscow, Russia

联系人作者:Yu V. Mikhailov(bogolubov@vniia.ru)

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引用该论文

B.D. Lemeshko,А.К. Dulatov,Yu V. Mikhailov,I.A. Prokuratov,A.N. Selifanov,T.S. Fatiev,V.G. Andreev. Lifetime and shelf life of sealed tritium-filled plasma focus chambers with gas generator[J]. Matter and Radiation at Extremes, 2017, 2(6): 303-308

B.D. Lemeshko,А.К. Dulatov,Yu V. Mikhailov,I.A. Prokuratov,A.N. Selifanov,T.S. Fatiev,V.G. Andreev. Lifetime and shelf life of sealed tritium-filled plasma focus chambers with gas generator[J]. Matter and Radiation at Extremes, 2017, 2(6): 303-308

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