Title :
Efficient ignition of fusion using PW-ps laser pulses for ultrahigh acceleration of plasma blocks
Author :
Hora, Heinrich ; Miley, George
Author_Institution :
Univ. of New South Wales, Sydney, NSW, Australia
Abstract :
Physics defines the reasons why laser driven ICF by laser pulses of nanosecond duration is basically different from the use of picosecond length. High intensity picoseconds laser pulses transfer energy directly into kinetic energy of plasma blocks without thermal losses, without delays by collisions and with exclusion of most instabilities. Following the long known theory by the nonlinear (ponderomotive) force, it was predicted that the plasma receives an ultra-high predicted acceleration first measured by Sauerbrey and theoretically confirmed in all details. Interaction of the plasma blocks with solid state fusion fuel should generate a Chu-Bobin fusion flame. Usng hydrodynamics with separate electron and ion fluids, detales properties can be studied about shock generation, and the varying velocity of the flame fronts far above 1000 km/s for high gains.
Keywords :
flames; fusion reactor fuel; laser fusion; plasma chemistry; plasma flow; plasma light propagation; plasma nonlinear processes; plasma shock waves; Chu-Robin fusion flame; PW-ps laser pulses; electron fluid; high intensity picoseconds laser pulses; hydrodynamics; ion fluid; kinetic energy; laser driven ICF; nanosecond duration; nonlinear force; plasma blocks; shock generation; solid state fusion fuel; thermal losses; ultra-high predicted acceleration; Acceleration; Fires; Force; Ignition; Laser fusion; Plasmas; Solids; fusion by lasers; ignition by fusion flame; non-thermal interaction; nonlinear (ponderomotive) force; petawatt-picoseocond pulses; ultrahigh acceleration; uncompressed solid fuel;
Conference_Titel :
Fusion Engineering (SOFE), 2013 IEEE 25th Symposium on
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4799-0169-2
DOI :
10.1109/SOFE.2013.6635298