Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Thomas, Alan"'
Autor:
Thomas Alan Mehlhorn
Publikováno v:
IEEE Transactions on Plasma Science. 48:768-791
This article is based on my plenary presentation that was associated with my Peter Haas Award, where I overview my 40 years of research and the people with whom I have had the pleasure of working, both domestically and internationally. In 1978, Sandi
Autor:
William A. Stygar, Gary Wayne Cooper, P. W. Lake, G. S. Dunham, Gregory Rochau, W. Varnum, D. B. Steinman, R. J. Leeper, Carlos L. Ruiz, S. A. Slutz, Thomas Alan Mehlhorn, Gordon A. Chandler, James E. Bailey, Diana Grace Schroen, Raymond W. Lemke, Kyle Peterson, Abbas Nikroo
Publikováno v:
Plasma Physics and Controlled Fusion. 49:B591-B600
The Z-pinch dynamic hohlraum (ZPDH) is a high-power x-ray source that has been used in a variety of high energy-density experiments including inertial confinement fusion (ICF) studies. The system consists of a tungsten wire-array Z pinch that implode
Autor:
L. Ziegler, Thomas Alan Mehlhorn, W. Varnum, J. Franklin, Gordon A. Chandler, R. J. Leeper, Kate Bell, Thomas J. Nash, Gregory Rochau, D.T. Casey, D. L. Fehl, Gary Wayne Cooper, S. A. Slutz, Kyle Peterson, James E. Bailey, A. J. Nelson, Carlos L. Ruiz
Publikováno v:
Journal de Physique IV (Proceedings). 133:775-778
Deuterium-filled capsule implosion experiments that employ the dynamic hohlraum are presently being conducted on the Z facility at Sandia National Laboratories. This paper will address the evidence for thermonuclear neutron production in the initial
Publikováno v:
Journal de Physique IV (Proceedings). 133:1167-1172
The pulsed-power driven double-ended vacuum hohlraum allows highly symmetric capsule implosions, aided by the separation of the capsule from the z-pinch and its associated instabilities, spatial variations, and non-thermal spectral components. Experi
Autor:
Thomas Alan Mehlhorn, David Lester Hanson, Michael Edward Cuneo, Robert B. Campbell, Stephen A. Slutz, Roger Alan Vesey, John L. Porter
Publikováno v:
Fusion Science and Technology. 49:384-398
Fast ignition using pulsed-power drivers combines the efficient production of X-rays to drive fusion fuel assembly with precise ultraintense laser pulses for fuel ignition. Z-pinches convert electrical energy into thermal X-ray energy with high effic
Autor:
Thomas Alan Mehlhorn, Igor Golovkin, T. C. Moore, P. W. Lake, Diana Grace Schroen, Gregory Rochau, Evgeny Stambulchik, G. S. Dunham, S. A. Slutz, J. Lucas, Gordon A. Chandler, Raymond W. Lemke, Yitzhak Maron, Joseph J. MacFarlane, James E. Bailey, K. Youngblood
Publikováno v:
High Energy Density Physics. 1:21-30
A dynamic hohlraum is created when an annular z-pinch plasma implodes onto a cylindrical 0.014 g/cc 6-mm-diameter CH2 foam. The impact launches a radiating shock that propagates toward the axis at w350 mm/ns. The radiation trapped by the tungsten z-p
Autor:
D. Schroen, J. Lucas, T. W. L. Sanford, Robert E. Chrien, Gordon A. Chandler, J. S. McGurn, T. C. Moore, D. O. Jobe, T. L. Gilliland, Thomas Alan Mehlhorn, D.L. Peterson, C. Russell, R. C. Mock, John P. Apruzese, George C. Idzorek, John Lee McKenney, R. J. Leeper, J. F. Seaman, Robert G. Watt, Jose A. Torres, D. S. Nielsen, P. Lake, Thomas J. Nash, Joseph J. MacFarlane, James E. Bailey
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 91:333-345
We present results from crystal spectroscopic analysis of silicon aero-gel foams heated by dynamic hohlraums on Z. The dynamic hohlraum on Z creates a radiation source with a 230-eV average temperature over a 2.4-mm diameter. In these experiments sil
Autor:
Robert G. Watt, Norman F. Roderick, D.L. Peterson, S. A. Slutz, James E. Bailey, G. S. Sarkisov, Raymond W. Lemke, R. C. Mock, Gordon A. Chandler, William A. Stygar, Thomas Alan Mehlhorn, John P. Apruzese, T. W. L. Sanford, Carlos L. Ruiz, Gary Wayne Cooper, Maurice Keith Matzen, M. G. Haines, Thomas J. Nash, Robert E. Chrien, David E. Bliss, Richard E. Olson, Craig L. Olson, R. J. Leeper, M. E. Cuneo, Jerry Chittenden
Publikováno v:
Plasma Physics and Controlled Fusion. 46:B423-B433
Progress in understanding the physics of dynamic-hohlraums is reviewed for a system capable of generating 13 TW of axial radiation for high temperature (>200 eV) radiation-flow experiments and ICF capsule implosions.
Autor:
W. Varnum, Gordon A. Chandler, Roberto Mancini, Roger Alan Vesey, R. J. Leeper, Diana Grace Schroen, Thomas Alan Mehlhorn, Joseph J. MacFarlane, S. A. Slutz, David Lester Hanson, Gary Wayne Cooper, Maurice Keith Matzen, Craig L. Olson, I. Golovkin, John L. Porter, Carlos L. Ruiz, James E. Bailey, M. E. Cuneo, Thomas J. Nash, Guy R. Bennett
Publikováno v:
Plasma Physics and Controlled Fusion. 45:A325-A334
Inertial confinement fusion capsule implosions absorbing up to 35 kJ of x-rays from a ~220 eV dynamic hohlraum on the Z accelerator at Sandia National Laboratories have produced thermonuclear D–D neutron yields of (2.6±1.3) × 1010. Argon spectra
Autor:
D. S. Nielson, Raymond W. Lemke, Jose A. Torres, James E. Bailey, J. S. McGurn, W. Varnum, Diana Grace Schroen, P. W. Lake, J. S. Lash, T. C. Moore, Gordon A. Chandler, Roger Alan Vesey, Thomas Alan Mehlhorn, S. A. Slutz, S. Lazier, Thomas J. Nash, Gary Wayne Cooper, Guy R. Bennett, Chimpén Ruiz
Publikováno v:
Physics of Plasmas. 10:1875-1882
A dynamic hohlraum is formed when an imploding annular cylindrical Z-pinch driven plasma collides with an internal low density convertor. This collision generates an inward traveling shock wave that emits x rays, which are trapped by the optically th