Study of neutrons at PF-1000

Author

Kubes, Pavel ; Kravarik, Jozef ; Klir, Daniel ; Barvir, Pavel ; Scholz, Marek ; Paduch, Marian ; Tomaszewski, Krzysztof ; Ivanova-Stanik, Irena ; Karpinski, Leslaw ; Juha, Libor ; Krasa, Josef ; Sadowski, Marek J. ; Jakubowski, Lech ; Banaszak, Anetta ; S

Author_Institution

Czech Tech. Univ., Prague, Czech Republic

fYear

2004

fDate

18-23 July 2004

Firstpage

742

Lastpage

745

Abstract

This paper presents the study of emission of the X-rays, fast electrons and neutrons from the plasma focus at the implosion of the deuterium plasma sheath. The discharges were carried out at the PF-1000 facility with the current amplitude of 2 MA. A good correlation of soft- and hard-X-rays and upstream electrons was confirmed. A distinctive anisotropy of upstream and side-on electrons with energy above 60 e V was observed. The mean energy of upstream neutrons was estimated as 2.7 MeV and of side-on neutrons as 2.5 MeV by pick to pick method. This value of energy enabled an estimation of ~50 ns time delay of maximum of neutrons after hard X-rays. Neutrons were produced at the time of plasma focus disintegration with ~50 ns FWHM as the FWHM of hard X-rays.

Keywords

explosions; neutron production; plasma X-ray sources; plasma focus; plasma sheaths; plasma transport processes; PF-1000 facility; X-ray emission; current 2 MA; deuterium plasma sheath implosion; fast electron emission; hard-X-ray FWHM; neutron production; pick-to-pick method; plasma focus discharges; plasma focus disintegration; soft-X-ray emission; time delay estimation; upstream electron anisotropy; upstream neutron mean energy; Energy measurement; Plasmas;

fLanguage

English

Publisher

ieee

Conference_Titel

High-Power Particle Beams (BEAMS 2004), 2004 International Conference on

Conference_Location

St. Petersburg

Print_ISBN

978-5-87911-088-3

Type

conf

Filename

6220650