Ultrahigh charging of dust grains by the beam−plasma method for creating a compact neutron source
- Авторлар: Akishev Y.1,2, Karal’nik V.1, Petryakov A.1, Starostin A.1, Trushkin N.1, Filippov A.1
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Мекемелер:
- Troitsk Institute for Innovation and Fusion Research
- National Research Nuclear University Moscow Engineering Physics Institute
- Шығарылым: Том 42, № 1 (2016)
- Беттер: 14-24
- Бөлім: Dusty Plasma
- URL: https://journals.rcsi.science/1063-780X/article/view/185521
- DOI: https://doi.org/10.1134/S1063780X16010013
- ID: 185521
Дәйексөз келтіру
Аннотация
Generation of high-voltage high-current electron beams in a low-pressure (P = 0.1–1 Torr) gas discharge is studied experimentally as a function of the discharge voltage and the sort and pressure of the plasma-forming gas. The density of the plasma formed by a high-current electron beam is measured. Experiments on ultrahigh charging of targets exposed to a pulsed electron beam with an energy of up to 25 keV, an electron current density of higher than 1 A/cm2, a pulse duration of up to 1 μs, and a repetition rate of up to 1 kHz are described. A numerical model of ultrahigh charging of dust grains exposed to a high-energy electron beam is developed. The formation of high-energy positive ions in the field of negatively charged plane and spherical targets is calculated. The calculations performed for a pulse-periodic mode demonstrate the possibility of achieving neutron yields of higher than 106 s–1 cm–2 in the case of a plane target and about 109 s–1 in the case of 103 spherical targets, each with a radius of 250 μm.
Авторлар туралы
Yu. Akishev
Troitsk Institute for Innovation and Fusion Research; National Research Nuclear University Moscow Engineering Physics Institute
Хат алмасуға жауапты Автор.
Email: fav@triniti.ru
Ресей, Troitsk, Moscow, 142190; Kashirskoe sh. 31, Moscow, 115409
V. Karal’nik
Troitsk Institute for Innovation and Fusion Research
Email: fav@triniti.ru
Ресей, Troitsk, Moscow, 142190
A. Petryakov
Troitsk Institute for Innovation and Fusion Research
Email: fav@triniti.ru
Ресей, Troitsk, Moscow, 142190
A. Starostin
Troitsk Institute for Innovation and Fusion Research
Email: fav@triniti.ru
Ресей, Troitsk, Moscow, 142190
N. Trushkin
Troitsk Institute for Innovation and Fusion Research
Email: fav@triniti.ru
Ресей, Troitsk, Moscow, 142190
A. Filippov
Troitsk Institute for Innovation and Fusion Research
Email: fav@triniti.ru
Ресей, Troitsk, Moscow, 142190