Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
Conditions for initiation of effective thermonuclear burning of laser targets. / Levkovskii, Aleksey A.; Andreev, Aleksandr A.; Il'in, Dmitrij V.; Sherman, Vladimir E.; Rozanov, Vladislav B.; Gus'kov, Sergei Yu.
в: Proceedings of SPIE - The International Society for Optical Engineering, Том 3886, 2000, стр. 448-456.Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
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TY - JOUR
T1 - Conditions for initiation of effective thermonuclear burning of laser targets
AU - Levkovskii, Aleksey A.
AU - Andreev, Aleksandr A.
AU - Il'in, Dmitrij V.
AU - Sherman, Vladimir E.
AU - Rozanov, Vladislav B.
AU - Gus'kov, Sergei Yu
PY - 2000
Y1 - 2000
N2 - The results of Monte-Carlo modelling of volume and spark ignition of spherical laser targets are systematized and the critical parameters are obtained both of isobaric and of isochoric central ignitors. It is shown that the target thermonuclear (TN) burning is independent on ignitor presence if the ignitor dimension and temperature are lower than the critical ones. In the opposite case TN flash results in effective burning with gain G to approximately 100, and the TN energy release is practically independent on the further increase of ignitor parameters. The intermediate gains 1<G<100 are obtained in rather narrow range of ignitor parameters near the critical. It is shown that the values of critical ignitor parameters are very sensitive to the way of ignition. The critical dimensions of isobaric ignitors are greater by several fold than ones of isochoric ignitors. On the contrary the overcritical target gain is practically independent on ignition origin and may be evaluated with a good accuracy by the simple asymptotic expression. The isochoric spark ignition associated with the fast ignition scheme is considered in detail and evaluations of minimum energy absorbed by extra laser pulse in terms of energy absorbed by basic driver are presented.
AB - The results of Monte-Carlo modelling of volume and spark ignition of spherical laser targets are systematized and the critical parameters are obtained both of isobaric and of isochoric central ignitors. It is shown that the target thermonuclear (TN) burning is independent on ignitor presence if the ignitor dimension and temperature are lower than the critical ones. In the opposite case TN flash results in effective burning with gain G to approximately 100, and the TN energy release is practically independent on the further increase of ignitor parameters. The intermediate gains 1<G<100 are obtained in rather narrow range of ignitor parameters near the critical. It is shown that the values of critical ignitor parameters are very sensitive to the way of ignition. The critical dimensions of isobaric ignitors are greater by several fold than ones of isochoric ignitors. On the contrary the overcritical target gain is practically independent on ignition origin and may be evaluated with a good accuracy by the simple asymptotic expression. The isochoric spark ignition associated with the fast ignition scheme is considered in detail and evaluations of minimum energy absorbed by extra laser pulse in terms of energy absorbed by basic driver are presented.
UR - http://www.scopus.com/inward/record.url?scp=0033906493&partnerID=8YFLogxK
U2 - 10.1117/12.375138
DO - 10.1117/12.375138
M3 - Conference article
AN - SCOPUS:0033906493
VL - 3886
SP - 448
EP - 456
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
SN - 0277-786X
T2 - High-Power Lasers in Energy Engineering
Y2 - 1 November 1999 through 4 November 1999
ER -
ID: 86385887