Low Fuel Convergence Path to Direct-Drive Fusion Ignition
Abstract
A new class of inertial fusion capsules is presented that combines multishell targets with laser direct drive at low intensity (2.8 × 1014 W/cm2) to achieve robust ignition. The targets consist of three concentric, heavy, metal shells, enclosing a volume of tens of μg of liquid deuterium-tritium fuel. Ignition is designed to occur well “upstream” from stagnation, with minimal pusher deceleration to mitigate interface Rayleigh-Taylor growth. As a result, laser intensities below thresholds for laser plasma instability and cross beam energy transfer facilitate high hydrodynamic efficiency (~10%).
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE (originally DOE/LANL); USDOE
- OSTI Identifier:
- 1410615
- Alternate Identifier(s):
- OSTI ID: 1259339
- Report Number(s):
- LA-UR-16-20796
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US1800136
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 116; Journal Issue: 25; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Molvig, Kim, Schmitt, Mark J., Albright, Brian James, Dodd, Evan S., Hoffman, Nelson M., McCall, Gene H., and Ramsey, Scott D. Low Fuel Convergence Path to Direct-Drive Fusion Ignition. United States: N. p., 2016.
Web. doi:10.1103/PhysRevLett.116.255003.
Molvig, Kim, Schmitt, Mark J., Albright, Brian James, Dodd, Evan S., Hoffman, Nelson M., McCall, Gene H., & Ramsey, Scott D. Low Fuel Convergence Path to Direct-Drive Fusion Ignition. United States. https://doi.org/10.1103/PhysRevLett.116.255003
Molvig, Kim, Schmitt, Mark J., Albright, Brian James, Dodd, Evan S., Hoffman, Nelson M., McCall, Gene H., and Ramsey, Scott D. Fri .
"Low Fuel Convergence Path to Direct-Drive Fusion Ignition". United States. https://doi.org/10.1103/PhysRevLett.116.255003. https://www.osti.gov/servlets/purl/1410615.
@article{osti_1410615,
title = {Low Fuel Convergence Path to Direct-Drive Fusion Ignition},
author = {Molvig, Kim and Schmitt, Mark J. and Albright, Brian James and Dodd, Evan S. and Hoffman, Nelson M. and McCall, Gene H. and Ramsey, Scott D.},
abstractNote = {A new class of inertial fusion capsules is presented that combines multishell targets with laser direct drive at low intensity (2.8 × 1014 W/cm2) to achieve robust ignition. The targets consist of three concentric, heavy, metal shells, enclosing a volume of tens of μg of liquid deuterium-tritium fuel. Ignition is designed to occur well “upstream” from stagnation, with minimal pusher deceleration to mitigate interface Rayleigh-Taylor growth. As a result, laser intensities below thresholds for laser plasma instability and cross beam energy transfer facilitate high hydrodynamic efficiency (~10%).},
doi = {10.1103/PhysRevLett.116.255003},
journal = {Physical Review Letters},
number = 25,
volume = 116,
place = {United States},
year = {Fri Jun 24 00:00:00 EDT 2016},
month = {Fri Jun 24 00:00:00 EDT 2016}
}
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Works referencing / citing this record:
Laser-direct-drive program: Promise, challenge, and path forward
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First experiments on Revolver shell collisions at the OMEGA laser
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