Larmor radiation from magnetized cluster plasmas

Summary form only given. Femtosecond laser produced plasmas from clustered gases are known to produce Larmor radiation even in the absence of an ambient magnetic field. If however a fixed magnetic field is introduced along with the primary laser pulse, the laser generated electron cloud from the cluster will experience some measure of confinement and enhancement or control of the radiation yield and spectrum may be possible. The detailed accounting of the radiation intensity requires a relativistic treatment of the electron orbits for only in that domain does the Larmor radiation appear. On the other hand the standard formulation for the radiation source is also subject to strong modification in that limit when the spatial scale of the acceleration competes with the "radiation formation length". An ambient magnetic field can be expected to allow some control of these length scales and also contain the cluster ions for the duration of the Larmor radiation pulse. The proposed model will examine the free electron and ion trajectories in the magnetized cluster plasma and assess the expected Larmor radiation source function and spectrum.