Cart (Loading....) | Create Account
Close category search window
 

Ablation dynamics and stagnation physics of copper wire array Z-pinch implosions at 20 MA

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

16 Author(s)
Coverdale, C.A. ; Sandia Nat. Labs., Albuquerque, NM, USA ; Deeney, C. ; Jones, B. ; Sinars, D.B.
more authors

Summary form only given. K-shell X-rays have been studied with various materials at the 20-MA (pre-refurbished) Z accelerator. This paper presents results obtained for the ablation dynamics and stagnation physics of single and nested copper z-pinches with varying initial load diameters. Monochromatic imaging and shadowgraphy provide detailed information regarding the ablation of the wires and the initial implosion, including instability growth. Time-resolved pinhole images near stagnation illustrate a cold blanket (< 1 keV, several mm diameter)/hot core (> 1 keV, ~ 1 mm diameter) structure and are used to provide estimates of the late time implosion velocity. Plasma parameters extracted from modeling of time-integrated K-shell spectra, as well as L-shell spectra, also suggest that temperature gradients are present in the plasma. Measurements of the Cu K-shell yield are also presented, although it generally appears that bright spots dominate the K- shell radiation pulse for single arrays. The experimental results will be compared with multi-dimensional Gorgon calculations, as well as a K-shell scaling theory.

Published in:

Plasma Science - Abstracts, 2009. ICOPS 2009. IEEE International Conference on

Date of Conference:

1-5 June 2009

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.