Possible version of the compression degradation of the thermonuclear indirect-irradiation targets at the national ignition facility and a reason for the failure of ignition


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Abstract

The main parameters of compression of a target and tendencies at change in the irradiation conditions are determined by analyzing the published results of experiments at the megajoule National Ignition Facility (NIF) on the compression of capsules in indirect-irradiation targets by means of the one-dimensional RADIAN program in the spherical geometry. A possible version of the “failure of ignition” of an indirect-irradiation target under the NIF conditions is attributed to radiation transfer. The application of onedimensional model to analyze the National Ignition Campaign (NIC) experiments allows identifying conditions corresponding to the future ignition regime and distinguishing them from conditions under which ignition does not occur.

About the authors

V. B. Rozanov

Lebedev Physical Institute

Author for correspondence.
Email: rozanov@sci.lebedev.ru
Russian Federation, Moscow, 119991

G. A. Vergunova

Lebedev Physical Institute

Email: rozanov@sci.lebedev.ru
Russian Federation, Moscow, 119991

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