Quenching of the Nonlocal Electron Heat Transport by Large External Magnetic Fields in a Laser-Produced Plasma Measured with Imaging Thomson Scattering

Demonstration of thermonuclear conditions in magnetized liner inertial fusion experimentsa)

“…Because the applied magnetic field appears to affect liner stability in addition to fuel magnetization, the impact of the field on thermal conduction in a stagnation experiment is not easily separable. However, previous work has experimentally demonstrated the temperature in laser-heated plasmas is greater with an applied magnetic field, 48 which indicates the applied field in MagLIF impacts the fuel temperature prior to compression. Additionally, in 1D MagLIF simulations (e.g., Refs.…”

Rapid self-magnetization of laser speckles in plasmas by nonlinear anisotropic instability

“…In experiments, magnetic fields have been observed to affect the long-term evolution of an expanding plasma [15], to suppress nonlocality [16], and to be generated and reconnect in laboratory astrophysical experiments [17]. Understanding the role magnetic fields take in suppressing heat flow is particularly important in laser fusion scenarios, such as hohlraums [18].…”

Energy Spread Reduction of Electron Beams Produced via Laser Wake

“…For a Gaussian laser pulse a parabolic radial density profile with a minimum on the laser axis is needed for guiding [18]. Such structures have been produced with long pulse (few nanosecond duration) lasers in low density (n e < 10 19 cm −3 ) plasmas using 1-5 T magnetic fields parallel to the laser axis to control heat transport and affect the radial electron density profile [19,20,21,22]; simulations using the code WAKE [23] have been performed using these channel parameters and indicate that these structures are suitable for guiding a subsequent laser pulse [18]. Alternatively, channel guiding has been demonstrated in capillary discharge plasmas and has produced GeV electron beams [11].…”