skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Radiation-driven hydrodynamics of long pulse hohlraums on the National Ignition Facility

Abstract

The first hohlraum experiments on the National Ignition Facility (NIF) using the first four laser beams have activated the indirect drive experimental capabilities and tested radiation temperature limits imposed by hohlraum plasma filling. Vacuum hohlraums have been irradiated with laser powers up to 6 TW, 1 ns to 9 ns long square pulses and energies of up to 17 kJ to activate several diagnostics, to study the hohlraum radiation temperature scaling with the laser power and hohlraum size, and to make contact with hohlraum experiments performed at the NOVA and Omega laser facilities. Furthermore, for a variety of hohlraum sizes and pulse lengths, the measured x-ray flux shows signatures of plasma filling that coincide with hard x-ray emission from plasma streaming out of the hohlraum. These observations agree with hydrodynamic simulations and with analytical modeling that includes hydrodynamic and coronal radiative losses. The modeling predicts radiation temperature limits on full NIF (1.8 MJ) that are significantly greater than required for ignition hohlraums.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
885408
Report Number(s):
UCRL-CONF-216946
TRN: US0603889
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: 47th Annual Meeting of the Division of Plasma Physics, Denver, CO, United States, Oct 24 - Oct 28, 2005
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; HYDRODYNAMICS; IGNITION; LASERS; PHYSICS; PLASMA; RADIATIONS; SIMULATION; US NATIONAL IGNITION FACILITY

Citation Formats

Dewald, D L, Landen, O L, Suter, L J, Schein, J, Holder, J, Campbell, K, Glenzer, S H, McDonald, J W, Niemann, C, Mackinnon, A J, Schneider, M S, Haynam, C, Hinkel, D, and Hammel, B A. Radiation-driven hydrodynamics of long pulse hohlraums on the National Ignition Facility. United States: N. p., 2005. Web.
Dewald, D L, Landen, O L, Suter, L J, Schein, J, Holder, J, Campbell, K, Glenzer, S H, McDonald, J W, Niemann, C, Mackinnon, A J, Schneider, M S, Haynam, C, Hinkel, D, & Hammel, B A. Radiation-driven hydrodynamics of long pulse hohlraums on the National Ignition Facility. United States.
Dewald, D L, Landen, O L, Suter, L J, Schein, J, Holder, J, Campbell, K, Glenzer, S H, McDonald, J W, Niemann, C, Mackinnon, A J, Schneider, M S, Haynam, C, Hinkel, D, and Hammel, B A. Mon . "Radiation-driven hydrodynamics of long pulse hohlraums on the National Ignition Facility". United States. https://www.osti.gov/servlets/purl/885408.
@article{osti_885408,
title = {Radiation-driven hydrodynamics of long pulse hohlraums on the National Ignition Facility},
author = {Dewald, D L and Landen, O L and Suter, L J and Schein, J and Holder, J and Campbell, K and Glenzer, S H and McDonald, J W and Niemann, C and Mackinnon, A J and Schneider, M S and Haynam, C and Hinkel, D and Hammel, B A},
abstractNote = {The first hohlraum experiments on the National Ignition Facility (NIF) using the first four laser beams have activated the indirect drive experimental capabilities and tested radiation temperature limits imposed by hohlraum plasma filling. Vacuum hohlraums have been irradiated with laser powers up to 6 TW, 1 ns to 9 ns long square pulses and energies of up to 17 kJ to activate several diagnostics, to study the hohlraum radiation temperature scaling with the laser power and hohlraum size, and to make contact with hohlraum experiments performed at the NOVA and Omega laser facilities. Furthermore, for a variety of hohlraum sizes and pulse lengths, the measured x-ray flux shows signatures of plasma filling that coincide with hard x-ray emission from plasma streaming out of the hohlraum. These observations agree with hydrodynamic simulations and with analytical modeling that includes hydrodynamic and coronal radiative losses. The modeling predicts radiation temperature limits on full NIF (1.8 MJ) that are significantly greater than required for ignition hohlraums.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {10}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: