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

Title: D2 and D-T Liquid-Layer Target Shots at the National Ignition Facility

Journal Article · · Fusion Science and Technology
 [1];  [2];  [1];  [2];  [1];  [1];  [1];  [1];  [3];  [1];  [1];  [1];  [1];  [1];  [1];  [3]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. General Atomics, San Diego, CA (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
+ Show Author Affiliations

Experiments at the National Ignition Facility (NIF) using targets containing a deuterium-tritium (D-T) fuel layer have, until recently, required that a high-quality layer of solid D-T (herein referred to as an ice layer) be formed in the capsule. The development of a process to line the inner surface of a target capsule with a foam layer of a thickness that is typical of ice layers has resulted in the ability to field targets with liquid layers wetting the foam. Successful fielding of liquid-layer targets on NIF required not only a foam-lined capsule but also changes to the capsule filling process and the manner with which the inventory is maintained in the capsule. Additionally, changes to target heater power and the temperature drops across target components were required in order to achieve the desired range of shot temperatures. Finally, these changes and the target’s performance during four target shots on NIF are discussed.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); General Atomics, San Diego, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344; AC52-06NA27279; AC52-06NA25396
OSTI ID:
1438648
Report Number(s):
LLNL-JRNL-747754; TRN: US1900475
Journal Information:
Fusion Science and Technology, Vol. 73, Issue 3; ISSN 1536-1055
Publisher:
American Nuclear SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

References (7)

First implosion experiments with cryogenic thermonuclear fuel on the National Ignition Facility journal March 2012
Cryogenic Target System for Hydrogen Layering journal February 2016
A new approach to foam-lined indirect-drive NIF ignition targets journal April 2012
Radioactively induced sublimation in solid tritium journal March 1988
Effects of self-heating and phase change on the thermal profile of hydrogen isotopes in confined geometries journal March 2014
First Liquid Layer Inertial Confinement Fusion Implosions at the National Ignition Facility journal December 2016
Deuterium-Tritium Fuel Layer Formation for the National Ignition Facility journal January 2011

Cited By (2)

Variable convergence liquid layer implosions on the National Ignition Facility journal May 2018
Robustness to hydrodynamic instabilities in indirectly driven layered capsule implosions journal January 2019

Figures / Tables (12)

Fig. 1(p. 23)figure Fig. 1
Fig. 2(p. 24)figure Fig. 2
Fig. 3(p. 25)figure Fig. 3
Fig. 4(p. 26)figure Fig. 4
Fig. 5(p. 27)figure Fig. 5
Fig. 6(p. 28)figure Fig. 6
Fig. 7(p. 29)figure Fig. 7
Fig. 8(p. 30)figure Fig. 8
Fig. 9(p. 31)figure Fig. 9
Fig. 10(p. 32)figure Fig. 10
Fig. 11(p. 33)figure Fig. 11
Fig. 12(p. 34)figure Fig. 12

Similar Records

D2 and DT Liquid-Layer Target Shots on NIF
Technical Report · Fri Sep 22 00:00:00 EDT 2017 · OSTI ID:1438648
+13 more
Fielding the NIF Cryogenic Ignition Target
Conference · Thu Feb 28 00:00:00 EST 2008 · OSTI ID:1438648
+7 more
Cryogenic DT and D{sub 2} targets for inertial confinement fusion
Journal Article · Tue May 15 00:00:00 EDT 2007 · Physics of Plasmas · OSTI ID:1438648
+17 more

Related Subjects

42 ENGINEERING
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
National Ignition Facility
target design
cryogenic D2/D-T liquid layer