NDLI: Correlation of Radiation With Electron and Neutron Signals Taken in a Plasma-Focus Device

Content Provider	IEEE Xplore Digital Library
Author	Kubes, P. Kravarik, J. Klir, D. Rezac, K. Scholz, M. Paduch, M. Tomaszewski, K. Ivanova-Stanik, I. Bienkowska, B. Karpinski, L. Sadowski, M.J. Schmidt, H.
Copyright Year	1973
Abstract	In the PF 1000 plasma-focus device, deuterium is used as a filling gas for the study of fast neutrons (originated from D-D fusion reactions) and X-rays. The X-ray signals have two peaks. The first peak corresponds to the time of the minimum diameter of the pinch phase, as recorded by the visible frames. The second peak has its maximum 150 to 200 ns later. The electrons with energy above a few hundreds of kiloelectronvolts are registered mostly at the first peak in both axial directions. Upstream and downstream electrons differ in their intensity (ratio 3 : 1), temporal profile, and time of their maximum. The energy of the neutrons and the time of their generation are determined by the time-of-flight method using six or seven scintillation detectors positioned in the axial direction. Each neutron pulse has a dominant portion of beam-target origin with downstream energies up to 3.2 MeV and the final portion of the neutrons with energies in the range of 2.2 to 2.7 MeV. The evolution of the neutron pulses correlates with the visible frames. The first pulse correlates with the fast downstream motion of the intense radiating axis layer of the pinch and with the forming and existence of the radiating ball-shaped structure at the bottom of the dilating plasma sheath. The second neutron pulse correlates with the exploding of the plasma after the second pinching, and with the forming and existence of the structure of the dense plasma at the bottom of the dilating current sheath, which is similar to the first pulse
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	2349
Ending Page	2355
Page Count	7
File Size	348783
File Format	PDF
ISSN	00933813
Volume Number	34
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrons Neutrons Plasma devices Plasma density Plasma x-ray sources Plasma sheaths Plasma diagnostics Deuterium Plasma accelerators Production X-ray radiation Neutron production plasma diagnostics plasma focus (PF)
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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