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

Jones, M. C.; 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.

doi:10.1063/1.4891316

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

Journal Article · Mon Aug 04 00:00:00 EDT 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4891316· OSTI ID:1145734

Jones, M. C. ^[1]; Ampleford, D. J. ^[1]; Cuneo, M. E. ^[1]; Hohlfelder, R. ^[1]; Jennings, C. A. ^[1]; Johnson, D. W. ^[1]; Jones, B. ^[1]; Lopez, M. R. ^[1]; MacArthur, J. ^[1]; Mills, J. A. ^[1]; Preston, T. ^[1]; Rochau, G. A. ^[1]; Savage, M. ^[1]; Spencer, D. ^[1]; Sinars, D. B. ^[1]; Porter, J. L. ^[1]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Advancements have been made in the diagnostic techniques to measure accurately the total radiated x-ray yield and power from z-pinch loads at the Z Machine with high accuracy. The Z-accelerator is capable of outputting 2MJ 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 were conducted on the Z machine where the load and machine configuration were held constant. During this shot series, it was observed that total z-pinch x-ray emission power determined from the two common techniques for inferring the x-ray power, Kimfol filtered x-ray diode diagnostic and the Total Power and Energy diagnostic gave 450 TW and 327 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 xray powers from z-pinch sources.

View Accepted Manuscript (DOE)

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000

OSTI ID:: 1145734

Alternate ID(s):: OSTI ID: 22314655

Report Number(s):: SAND2014--4261J; 518375

Journal Information:: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 8 Vol. 85; ISSN 0034-6748; ISSN RSINAK

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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A Wolter imager on the Z machine to diagnose warm x-ray sources Fein, J. R.; Ampleford, D. J.; Vogel, J. K. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5038347	journal	October 2018
Enhancing performance of magnetized liner inertial fusion at the Z facility Slutz, S. A.; Gomez, M. R.; Hansen, S. B. Physics of Plasmas, Vol. 25, Issue 11 https://doi.org/10.1063/1.5054317	journal	November 2018
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Conceptual designs of two petawatt-class pulsed-power accelerators for high-energy-density-physics experiments Stygar, W. A.; Awe, T. J.; Bailey, J. E. Physical Review Special Topics - Accelerators and Beams, Vol. 18, Issue 11 https://doi.org/10.1103/physrevstab.18.110401	journal	November 2015
H β and H γ Absorption-line Profile Inconsistencies in Laboratory Experiments Performed at White Dwarf Photosphere Conditions Schaeuble, M. -A.; Nagayama, T.; Bailey, J. E. The Astrophysical Journal, Vol. 885, Issue 1 https://doi.org/10.3847/1538-4357/ab479d	journal	November 2019

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