Optimization of irradiation configuration using spherical t -designs for laser-direct-drive inertial confinement fusion

Nuclear Fushion

article

A. Shvydky¹  W. Trickey¹  A.V. Maximov¹  I.V. Igumenshchev¹  P.W. McKenty¹  V.N. Goncharov¹ 

[1] Laboratory for Laser Energetics,University of Rochester

关键词: inertial confinement fusion;    laser irradiation;    spherical design;   

DOI  :  10.1088/1741-4326/aca685

来源: Institute of Physics Publishing Ltd.

【 摘 要 】

A new class of beam configurations is proposed for symmetric-direct-drive inertial confinement fusion laser systems. These configurations are based on sphericalt -designs that are studied in spherical design theory in mathematics (Delsarteet al1977Geom. Dedicata6363). Employingt -design configurations offers elimination of spherical-harmonic intensity modulations for modes ell leqslant t . Additionally, these configurations provide fast decay of intensity nonuniformities with increasing number of beams and symmetric intensity patterns on the surface of the target. Methods developed in spherical design theory offer a convenient, systematic way of obtaining beam configurations for an arbitrary number of beams.

【 授权许可】

Unknown