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

Title: Design and Fabrication of Opacity Targets for the National Ignition Facility

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

Accurate models for opacity of partially ionized atoms are important for modeling and understanding stellar interiors and other high-energy-density phenomena such as inertial confinement fusion. Lawrence Livermore National Laboratory is leading a multilaboratory effort to conduct experiments on the National Ignition Facility (NIF) to try to reproduce recent opacity tests at the Sandia National Laboratory Z-facility. Since 2015, the NIF effort has evolved several hohlraum designs that consist of multiple pieces joined together. The target also has three components attached to the main stalk over a long distance with high tolerances that have resulted in several design iterations. The target has made use of rapid prototyped features to attach a capsule and collimator under the hohlraum while avoiding interference with the beams. Furthermore, this paper discusses the evolution of the hohlraum and overall target design and the challenges involved with fabricating and assembling these targets.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396; AC52‐07NA27344; NA0001808; AC52-07NA27344
OSTI ID:
1416284
Alternate ID(s):
OSTI ID: 1438713
Report Number(s):
LA-UR-17-26125; LLNL-JRNL-740900; TRN: US1800896
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: 4 works
Citation information provided by
Web of Science

References (5)

Replicating the Z iron opacity experiments on the NIF journal June 2017
Capsule implosions for continuum x-ray backlighting of opacity samples at the National Ignition Facility journal June 2017
Development of the Triple Theta Assembly Station with Machine Vision Feedback journal April 2009
Additive Manufacturing Capabilities Applied to Inertial Confinement Fusion at Los Alamos National Laboratory journal September 2016
A higher-than-predicted measurement of iron opacity at solar interior temperatures journal December 2014

Cited By (2)

Hohlraum modeling for opacity experiments on the National Ignition Facility journal June 2018
Iron X-ray Transmission at Temperature Near 150 eV Using the National Ignition Facility: First Measurements and Paths to Uncertainty Reduction journal October 2018

Figures / Tables (17)

Figure 1(p. 17)figure Figure 1
Figure 2(p. 17)figure Figure 2
Figure 3(p. 18)figure Figure 3
Figure 4(p. 18)figure Figure 4
Figure 5(p. 19)figure Figure 5
Figure 6(p. 20)figure Figure 6
Figure 7(p. 20)figure Figure 7
Figure 8(p. 21)figure Figure 8
Figure 10(p. 22)figure Figure 10
Figure 11(p. 22)figure Figure 11
Figure 9(p. 22)figure Figure 9
Figure 12(p. 23)figure Figure 12
Figure 13(p. 23)figure Figure 13
Figure 14(p. 23)figure Figure 14
Figure 15(p. 24)figure Figure 15
Figure 16(p. 24)figure Figure 16
Figure 17(p. 25)figure Figure 17

Similar Records

Conceptual design of initial opacity experiments on the national ignition facility
Journal Article · Mon Jan 09 00:00:00 EST 2017 · Journal of Plasma Physics · OSTI ID:1416284
+17 more
National Ignition Facility Target Chamber
Conference · Thu Oct 05 00:00:00 EDT 2000 · OSTI ID:1416284
Indirectly driven targets for ignition
Technical Report · Sat Dec 31 00:00:00 EST 1994 · OSTI ID:1416284

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Opacity
77 NANOSCIENCE AND NANOTECHNOLOGY
47 OTHER INSTRUMENTATION
70 PLASMA PHYSICS AND FUSION
opacity
solar interior
target fabrication