Sensitivity of ICF reactor targets to long-wavelength drive nonuniformities
The sensitivity of a family of high gain inertial confinement fusion (ICF) targets to implosion nonuniformities is studied by means of 2-D numerical simulations. The effect of single wavelength, low mode number perturbations of the driving pressure is considered. It is shown that the ratio Q of the 2-D target yield to the yield obtained in the spherically symmetric case is a function of the perturbation parameters as well as of the spark convergence ratio and of the 1-D ignition margin of the target. The scaling of Q with mode number and amplitude is derived; it is also shown that tolerable levels of nonuniformities depend critically on the 1-D ignition margin.
Bibliographic Reference: Report: RT/FUS/89/24 EN (1989) 13 pp.
Availability: Available from Servizio Studi e Documentazione, ENEA, Centro Ricerche Energia Frascati, C.P.65-00044 Frascati, Roma (IT)
Record Number: 199011468 / Last updated on: 1994-12-02
Original language: en
Available languages: en