Observations of soft x-ray production in the speed 2 plasma focus
- 15 January 1991
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 69 (2) , 613-617
- https://doi.org/10.1063/1.347394
Abstract
A new soft x-ray source has been developed and investigated. Argon is injected into a plasma focus through a hole in the anode. The pinch emits several Joules per shot of soft x rays at λ<0.5 nm from multiple micropinches well aligned along the axis of symmetry. When viewed end-on the pinch appears as a small source of 700 μm diam. The micropinches have the following characteristics: Range of size 40–250 μm (depending on radiation wavelength), density 1028 m−3, temperature 1.5 keV, and lifetime typically less than 1 ns. The helium-like emission from single micropinches lasts for 250 ps only, which is much shorter than previously reported.This publication has 9 references indexed in Scilit:
- The formation of the micropinch structure in plasma focus by the addition of heavy impuritiesJournal of Physics D: Applied Physics, 1988
- Mass loss of exploding foilsJournal of Applied Physics, 1988
- High-energy x-ray response of photographic films: models and measurementJournal of the Optical Society of America B, 1986
- Power limits for dynamical pinch dischargesPlasma Physics and Controlled Fusion, 1986
- High performance 300 kV driver speed 2 for MA pinch dischargesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1986
- Temporal development of hard and soft x-ray emission from a gas-puff Z pinchReview of Scientific Instruments, 1986
- Spectra—A model for K-shell spectroscopyJournal of Quantitative Spectroscopy and Radiative Transfer, 1984
- Photoelectric quantum efficiencies and filter window absorption coefficients from 20 eV to 10 KeVJournal of Applied Physics, 1981
- Contraction of Z pinches actuated by radiation lossesPhysics of Fluids, 1976