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==== Shock ignition ==== Proposed by C. Zhou and R. Betti,<ref>{{Cite journal |last=Betti |first=R. |last2=Zhou |first2=C. D. |last3=Anderson |first3=K. S. |last4=Perkins |first4=L. J. |last5=Theobald |first5=W. |last6=Solodov |first6=A. A. |date=2007-04-12 |title=Shock Ignition of Thermonuclear Fuel with High Areal Density |url=https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.98.155001 |journal=Physical Review Letters |volume=98 |issue=15 |pages=155001 |doi=10.1103/PhysRevLett.98.155001}}</ref> after an early compression phase similar to that of the direct drive approach, an additional driver is applied (such as a laser, electron beam, or similar pulse). This create a shock wave orders of magnitude stronger. The separation of the compression process from the final heating, where ignition is achieved, offers the advantage of reducing the compression requirements and utilizing more efficient energy deposition mechanisms. Additionally, some theoretical and experimental findings claim that these approach enhances ignition conditions,<ref>{{Cite journal |last=Theobald |first=W. |last2=Betti |first2=R. |last3=Stoeckl |first3=C. |last4=Anderson |first4=K. S. |last5=Delettrez |first5=J. A. |last6=Glebov |first6=V. Yu. |last7=Goncharov |first7=V. N. |last8=Marshall |first8=F. J. |last9=Maywar |first9=D. N. |last10=McCrory |first10=R. L. |last11=Meyerhofer |first11=D. D. |last12=Radha |first12=P. B. |last13=Sangster |first13=T. C. |last14=Seka |first14=W. |last15=Shvarts |first15=D. |date=2008-03-26 |title=Initial experiments on the shock-ignition inertial confinement fusion concepta) |url=https://pubs.aip.org/aip/pop/article-abstract/15/5/056306/1016578/Initial-experiments-on-the-shock-ignition-inertial?redirectedFrom=fulltext |journal=Physics of Plasmas |volume=15 |issue=5 |pages=056306 |doi=10.1063/1.2885197 |issn=1070-664X}}</ref> as demonstrated, for instance, at the [[OMEGA laser]] at the University of Rochester.<ref>{{Cite journal |last=Ribeyre |first=X. |last2=Tikhonchuk |first2=V. T. |last3=Breil |first3=J. |last4=Lafon |first4=M. |last5=Le Bel |first5=E. |date=2011-10-11 |title=Analytic criteria for shock ignition of fusion reactions in a central hot spot |url=https://pubs.aip.org/aip/pop/article-abstract/18/10/102702/317098/Analytic-criteria-for-shock-ignition-of-fusion?redirectedFrom=fulltext |journal=Physics of Plasmas |volume=18 |issue=10 |pages=102702 |doi=10.1063/1.3646743 |issn=1070-664X}}</ref> This increases the efficiency of the process while lowering the overall amount of power required.
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