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Special Report of Pulsed Power Inertial Confinement Fusion Program

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  Z-Machine
Time-exposure photograph of electrical flashover arcs produced over the surface of the water in the accelerator tank as a byproduct of Z operation. These flashovers are much like strokes of lightning.


The Special Report was an occasional one-paragraph summary of important results/events in the Inertial Confinement Fusion (ICF) Program at Sandia that was produced from 1994 to 2000 for the weekly Defense Program News. These special reports were distributed to Sandia's Nuclear Weapons Program (9000), the Department of Energy, and management and staff in ICF in the Pulsed Power Sciences Center (1600).

These reports are included here in order to provide historical perspective with respect to the transition of Sandia's ICF Program from an emphasis on light ion beam research for fusion to an emphasis on z pinches for fusion and high energy density physics.

2000
Isentropic compression team receives award (March)
1998
Radiation temperature > 150 eV on Z (April)
Nested wire arrays increase peak radiated power on Z by 45% (February)
1997
Z pinch program receives IndustryWeek Award (December)
130 eV radiation temperature measured in vacuum hohlraum on Z (July)
90 kJ of x-ray energy >4.5 keV for weapons effects tests obtained on Z (June)
Improved power flow and load geometry increase x-ray power by 25% (April)
1996
PBFA-Z radiated energy and power milestones achieved on same shot (November)
PBFA-Z radiated x-ray energy milestone achieved (November)
First z-pinch-driven x-ray radiation shot on PBFA Z (October)
Extraction ion diode experiments on Gamble II for focusing and transport (September)
Extraction diode experiments on PBFA X (June)
World-record radiated x-ray power (February)
1995
Initial operation of PBFA X (September)
Changes in light ion ICF Program emphasis (July)
Direct observation of ion mode instability on PBFA II (May)
QUICKSILVER simulations of beam divergence (April)
Radiation smoothing observed in lithium-ion-heated hohlraums (March)
1994
Surface cleaning dramatically increases lithium ion production efficiency (September)

For more information on these reports, contact
Mary Ann Sweeney, Principal Mem. Technical Staff, 1-505-845-7307, masween@sandia.gov

Other Reports on High Energy Density and ICF

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