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Title: X-ray power and yield measurements at the refurbished Z machine

Abstract

Advancements have been made in the diagnostic techniques to measure accurately the total radiated x-ray yield and power from z-pinch implosion experiments at the Z machine with high accuracy. The Z machine is capable of outputting 2 MJ and 330 TW of x-ray yield and power, and accurately measuring these quantities is imperative. We will describe work over the past several years which include the development of new diagnostics, improvements to existing diagnostics, and implementation of automated data analysis routines. A set of experiments on the Z machine were conducted in which the load and machine configuration were held constant. During this shot series, it was observed that the total z-pinch x-ray emission power determined from the two common techniques for inferring the x-ray power, a Kimfol filtered x-ray diode diagnostic and the total power and energy diagnostic, gave 449 TW and 323 TW, respectively. Our analysis shows the latter to be the more accurate interpretation. More broadly, the comparison demonstrates the necessity to consider spectral response and field of view when inferring x-ray powers from z-pinch sources.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)
Publication Date:
OSTI Identifier:
22314655
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 85; Journal Issue: 8; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCURACY; DATA ANALYSIS; EMISSION; SPECTRAL RESPONSE; X RADIATION; X-RAY SOURCES; YIELDS

Citation Formats

Jones, M. C., E-mail: micjone@sandia.gov, Ampleford, D. J., Cuneo, M. E., Hohlfelder, R., Jennings, C. A., Johnson, D. W., Jones, B., Lopez, M. R., MacArthur, J., Mills, J. A., Preston, T., Rochau, G. A., Savage, M., Spencer, D., Sinars, D. B., and Porter, J. L. X-ray power and yield measurements at the refurbished Z machine. United States: N. p., 2014. Web. doi:10.1063/1.4891316.
Jones, M. C., E-mail: micjone@sandia.gov, Ampleford, D. J., Cuneo, M. E., Hohlfelder, R., Jennings, C. A., Johnson, D. W., Jones, B., Lopez, M. R., MacArthur, J., Mills, J. A., Preston, T., Rochau, G. A., Savage, M., Spencer, D., Sinars, D. B., & Porter, J. L. X-ray power and yield measurements at the refurbished Z machine. United States. https://doi.org/10.1063/1.4891316
Jones, M. C., E-mail: micjone@sandia.gov, Ampleford, D. J., Cuneo, M. E., Hohlfelder, R., Jennings, C. A., Johnson, D. W., Jones, B., Lopez, M. R., MacArthur, J., Mills, J. A., Preston, T., Rochau, G. A., Savage, M., Spencer, D., Sinars, D. B., and Porter, J. L. 2014. "X-ray power and yield measurements at the refurbished Z machine". United States. https://doi.org/10.1063/1.4891316.
@article{osti_22314655,
title = {X-ray power and yield measurements at the refurbished Z machine},
author = {Jones, M. C., E-mail: micjone@sandia.gov and Ampleford, D. J. and Cuneo, M. E. and Hohlfelder, R. and Jennings, C. A. and Johnson, D. W. and Jones, B. and Lopez, M. R. and MacArthur, J. and Mills, J. A. and Preston, T. and Rochau, G. A. and Savage, M. and Spencer, D. and Sinars, D. B. and Porter, J. L.},
abstractNote = {Advancements have been made in the diagnostic techniques to measure accurately the total radiated x-ray yield and power from z-pinch implosion experiments at the Z machine with high accuracy. The Z machine is capable of outputting 2 MJ and 330 TW of x-ray yield and power, and accurately measuring these quantities is imperative. We will describe work over the past several years which include the development of new diagnostics, improvements to existing diagnostics, and implementation of automated data analysis routines. A set of experiments on the Z machine were conducted in which the load and machine configuration were held constant. During this shot series, it was observed that the total z-pinch x-ray emission power determined from the two common techniques for inferring the x-ray power, a Kimfol filtered x-ray diode diagnostic and the total power and energy diagnostic, gave 449 TW and 323 TW, respectively. Our analysis shows the latter to be the more accurate interpretation. More broadly, the comparison demonstrates the necessity to consider spectral response and field of view when inferring x-ray powers from z-pinch sources.},
doi = {10.1063/1.4891316},
url = {https://www.osti.gov/biblio/22314655}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 8,
volume = 85,
place = {United States},
year = {Fri Aug 15 00:00:00 EDT 2014},
month = {Fri Aug 15 00:00:00 EDT 2014}
}

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