Polar direct drive: Proof-of-principle experiments on OMEGA and prospects for ignition on the National Ignition Facility

Details Polar direct drive: Proof-of-principle experiments on OMEGA and prospects for ignition on the National Ignition Facility Polar direct drive: Proof-of-principle experiments on OMEGA and prospects for ignition on the National Ignition Facility

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phpl...12e6304c&link_type=abstract

Physics of Plasmas, Volume 12, Issue 5, pp. 056304-056304-8 (2005).

Physics

14

Plasma Production And Heating By Laser Beams, Explosions, Exploding Wires, Laser Inertial Confinement, X-Ray And Gamma-Ray Measurements, Plasma Simulation, Materials, Fueling, Heating And Ignition

Scientific paper

Polar direct drive (PDD) [S. Skupsky et al., Phys. Plasmas 11 2763 (2004)] shows promise for achieving direct-drive ignition while the National Ignition Facility (NIF) [E. M. Campbell and W. J. Hogan, Plasma Phys. Control. Fusion 41 B39 (1999)] is initially configured for indirect drive. Experiments have been carried out using 40 repointed beams of the 60-beam OMEGA laser system [T. R. Boehly et al., Rev. Sci. Instrum. 66 508 (1995)] to approximate the NIF PDD configuration. Backlit x-ray framing-camera images of D2-filled spherical CH capsules show a characteristic nonuniformity pattern that is in close agreement with predictions. Saturn targets (similar capsules surrounded by a plastic ring) increase the drive on the equator, suggesting that highly symmetric PDD implosions may be possible with appropriate tuning. Two-dimensional (2D) simulations reproduced the approximately threefold reduction in yield found for the non-Saturn PDD capsules. Preliminary simulations for a NIF Saturn design predict a high gain close to the 1D prediction. These results increase the prospects of obtaining direct-drive ignition with the initial NIF configuration.

Affiliated with

Also associated with

No associations

Rating

Polar direct drive: Proof-of-principle experiments on OMEGA and prospects for ignition on the National Ignition Facility does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Polar direct drive: Proof-of-principle experiments on OMEGA and prospects for ignition on the National Ignition Facility, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polar direct drive: Proof-of-principle experiments on OMEGA and prospects for ignition on the National Ignition Facility will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1378434