Fast ignition of asymmetrically compressed targets for inertial confinement fusion
- Authors: Gus’kov S.Y.1,2, Demchenko N.N.1, Zmitrenko N.V.3, Kuchugov P.A.1,3, Rozanov V.B.1, Stepanov R.V.1, Yakhin R.A.1
- 
							Affiliations: 
							- Lebedev Physical Institute
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
- Keldysh Institute of Applied Mathematics
 
- Issue: Vol 105, No 6 (2017)
- Pages: 402-407
- Section: Miscellaneous
- URL: https://journals.rcsi.science/0021-3640/article/view/160214
- DOI: https://doi.org/10.1134/S0021364017060066
- ID: 160214
Cite item
Abstract
It is shown that fast ignition can ensure the combustion of asymmetrically compressed targets for inertial confinement fusion with an efficiency close to the combustion of one-dimensionally compressed targets. This statement is valid not only for targets specially designed for fast ignition. Fast heating by an external energy source can ensure the ignition of a target designed for spark ignition, but where this ignition does not occur because inhomogeneities are formed in the temperature and density distributions owing to the development of hydrodynamic instabilities. The condition for ignition is the fast heating of the plasma in the combustion initiation region whose size is comparable with the sizes of compression inhomogeneities. Thus, fast ignition not only significantly reduces the ignition energy, but also is possibly a necessary stage in the inertial confinement fusion scheme when the spherically symmetric compression of a target requires very high engineering and financial expenses. The studies are based on the numerical simulation of the compression and combustion of inertial confinement fusion targets with one- and two-dimensional hydrodynamic codes.
About the authors
S. Yu. Gus’kov
Lebedev Physical Institute; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
							Author for correspondence.
							Email: guskov@sci.lebedev.ru
				                					                																			                												                	Russian Federation, 							Moscow, 119991; Moscow, 115409						
N. N. Demchenko
Lebedev Physical Institute
														Email: guskov@sci.lebedev.ru
				                					                																			                												                	Russian Federation, 							Moscow, 119991						
N. V. Zmitrenko
Keldysh Institute of Applied Mathematics
														Email: guskov@sci.lebedev.ru
				                					                																			                												                	Russian Federation, 							Moscow, 125047						
P. A. Kuchugov
Lebedev Physical Institute; Keldysh Institute of Applied Mathematics
														Email: guskov@sci.lebedev.ru
				                					                																			                												                	Russian Federation, 							Moscow, 119991; Moscow, 125047						
V. B. Rozanov
Lebedev Physical Institute
														Email: guskov@sci.lebedev.ru
				                					                																			                												                	Russian Federation, 							Moscow, 119991						
R. V. Stepanov
Lebedev Physical Institute
														Email: guskov@sci.lebedev.ru
				                					                																			                												                	Russian Federation, 							Moscow, 119991						
R. A. Yakhin
Lebedev Physical Institute
														Email: guskov@sci.lebedev.ru
				                					                																			                												                	Russian Federation, 							Moscow, 119991						
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