Along with laser-indirect(X-ray)-drive and magnetic-drive target concepts,laser direct drive is a viable approach to achieving ignition and gain with inertial confinement fusion.In the United States,a national program...Along with laser-indirect(X-ray)-drive and magnetic-drive target concepts,laser direct drive is a viable approach to achieving ignition and gain with inertial confinement fusion.In the United States,a national program has been established to demonstrate and understand the physics of laser direct drive.The program utilizes the Omega Laser Facility to conduct implosion and coupling physics at the nominally 30-kJ scale and lasereplasma interaction and coupling physics at the MJ scale at the National Ignition Facility.This article will discuss the motivation and challenges for laser direct drive and the broad-based program presently underway in the United States.展开更多
Pulsed power technology provides a platform for investigating plasmas in strong magnetic fields using a university-scale machine.Presented here are methods for generating and measuring the 1–4-MG magnetic fields deve...Pulsed power technology provides a platform for investigating plasmas in strong magnetic fields using a university-scale machine.Presented here are methods for generating and measuring the 1–4-MG magnetic fields developed for the 1-MA Zebra pulsed power generator at the University of Nevada,Reno.A laser coupled with the Zebra generator produces a magnetized plasma,and experiments investigate how a megagauss magnetic field affects the two-plasmon decay and the expansion of the laser-produced plasma in both transverse and longitudinal magnetic fields.展开更多
文摘Along with laser-indirect(X-ray)-drive and magnetic-drive target concepts,laser direct drive is a viable approach to achieving ignition and gain with inertial confinement fusion.In the United States,a national program has been established to demonstrate and understand the physics of laser direct drive.The program utilizes the Omega Laser Facility to conduct implosion and coupling physics at the nominally 30-kJ scale and lasereplasma interaction and coupling physics at the MJ scale at the National Ignition Facility.This article will discuss the motivation and challenges for laser direct drive and the broad-based program presently underway in the United States.
基金the NSF(Grant No.PHY-1903355)through the NSF-DOE Partnership in Basic Plasma Science and Engineering and by the DOE NNSA(Grant No.DE-NA0003991)the auspices of the U.S.Department of Energy by the Lawrence Livermore National Laboratory(Contract No.DE-AC52-07NA27344).
文摘Pulsed power technology provides a platform for investigating plasmas in strong magnetic fields using a university-scale machine.Presented here are methods for generating and measuring the 1–4-MG magnetic fields developed for the 1-MA Zebra pulsed power generator at the University of Nevada,Reno.A laser coupled with the Zebra generator produces a magnetized plasma,and experiments investigate how a megagauss magnetic field affects the two-plasmon decay and the expansion of the laser-produced plasma in both transverse and longitudinal magnetic fields.
