Two-dimensional modeling of the x-radiation output from perturbed Z pinches

Physics of Plasmas

Volumn 3, Issue 4, 1996, Pages 1415-1429

  Matuska, W ^a   Bowers, R L ^a   Brownell, J H ^a   Lee, H ^a   Lund, C M ^a   Peterson, O L ^a   Roderick, N F ^a,b  

^a LOS ALAMOS NATIONAL LABORATORY   (United States)

^b University of New Mexico   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ALGORITHMS; BOLOMETERS; COMPUTER SIMULATION; ELECTRIC BREAKDOWN; ELECTRIC CURRENT MEASUREMENT; ELECTRIC WAVEFORMS; EQUATIONS OF STATE; MAGNETOHYDRODYNAMICS; PHOTONS; PLASMA DIAGNOSTICS; X RAY CAMERAS; X RAY SPECTROMETERS;

FARADAY PROBES; IMPLOSIONS; RAY TRACING; RAYLEIGH TAYLOR INSTABILITIES; TWO DIMENSIONAL; X RAY DIODES; X RAY PINHOLE CAMERAS; X RAY TRANSMISSION GRATING SPECTROMETERS; Z PINCHES;

X RAYS;

EID: 0030128530     PISSN: 1070664X     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.871731     Document Type: Article

References (15)

1. D. L. Peterson, R. L. Bowers, A. E. Greehe, K. D. McLenithan, T. A. Oliphant, N. F. Roderick, and A. J. Scannapieco, Phys. Plasmas 3, 368 (1996).
2. A description of the bank Parameters can be found in Ref. 1.
3. J. C. Cochrane, R. R. Bartsch, J. R. Benage, P. R. Forman, R. F. Gribble, J. S. Ladish, H. Oona, J. V. Parker, D. W. Scudder, J. S. Shlachter, and F. J. Wysocki, Proceedings of the 9th IEEE Pulsed Power Conference, Albuquerque, NM, June 1993 (Institute of Electrical and Electronic Engineers, Piscataway, NJ, 1993), p. 805.
4. See National Technical Information Service Document No. NTIS DE94-011699 (J. D. Johnson, "SESAME data base"). Copies may be ordered from the National Technical Information Service, Springfield, Virginia 22161.
5. The equations describing the nonequilibrium flux-limited diffusion model are discussed in the Appendix in Ref. 1.
6. In most of the plasma the electron and ion temperatures are essentially the same. When this occurs we refer to their value simply as the plasma temperature.
7. Defined as the radius in the plasma at which the optical depth (measured from infinity) equals 2/3.
8. See National Technical Information Service Document No. NTIS DE93-012674 (W. Matuska, H. Lee, R. Hockaday, and D. Peterson, "Source to detector spectrum transformation and its inverse for the Pegasus Z-pinch," 3rd International Conference on Dense Z-Pinches, 19-23 April 1993, Imperial College, London). Copies may be ordered from the National Technical Information Service, Springfield, Virginia 22161.
9. For some portions of the spectrum the photon mean-free path is large compared with the size of the pinch, so it is necessary to use the entire structuer of the pinch in the ray trace analysis.
10. N. H. Magee, Jr. (private communication, 1993), A. Weiss, J. J. Keady, and N. H. Magee, Jr., Atomic Data and Nuclear Data Tables (Academic, New York, 1990), Vol. 45, pp. 209-238. See National Technical Information Service Document No. NTIS LA-6760M (W> F. Huebner, A. L. Merts, N. H. Magee, Jr., and M. F. Argo, "Astrophysical opacity lihrary"). Copies may be ordered from the National Technical Information Service, Springfield, Virginia 22161.
11. N. H. Magee, Jr. (private communication, 1993), A. Weiss, J. J. Keady, and N. H. Magee, Jr., Atomic Data and Nuclear Data Tables (Academic, New York, 1990), Vol. 45, pp. 209-238. See National Technical Information Service Document No. NTIS LA-6760M (W> F. Huebner, A. L. Merts, N. H. Magee, Jr., and M. F. Argo, "Astrophysical opacity lihrary"). Copies may be ordered from the National Technical Information Service, Springfield, Virginia 22161.
12. N. H. Magee, Jr. (private communication, 1993), A. Weiss, J. J. Keady, and N. H. Magee, Jr., Atomic Data and Nuclear Data Tables (Academic, New York, 1990), Vol. 45, pp. 209-238. See National Technical Information Service Document No. NTIS LA-6760M (W> F. Huebner, A. L. Merts, N. H. Magee, Jr., and M. F. Argo, "Astrophysical opacity lihrary"). Copies may be ordered from the National Technical Information Service, Springfield, Virginia 22161.
13. 3, the perturbed models discussed previously used a pure aluminum Rosseland mean opacity.
14. We find typically that this radius is consistent with the radius at which the optical depth exceeds unity.
15. See, for example, D. J. Wilde and C. S. Beightler, Foundations of Optimizations (Preatice-Hall, Englewood Cliffs, NJ, 1967), p. 298.