Fundamental investigations on plasma diagnostics of a forward laser plasma acceleration employing laser‐foil interactions were conducted for an Al‐foil target irradiated with an Nd:YAG laser of 1J/pulse with pulse‐width of 10nsec. A time‐of‐flight measurement was also conducted to evaluate ion speeds. In addition, temporal evolutions of electron temperatures and densities were evaluated with electrostatic probes and spectroscopic diagnostics. Moreover, a preliminary one‐dimensional particle‐in‐cell (PIC) simulation was conducted to elucidate acceleration mechanisms. From the results, it was shown that a speed of ions in a forward direction were about 135 km/sec, respectively. Also it was shown that the plasma temperature and density were about 2.5∼3 eV and 1010 cm‐3.
Plasma Diagnostics of a Forward Laser Plasma Accelerated Thruster
BEAMED ENERGY PROPULSION: Fourth International Symposium on Beamed Energy Propulsion ; 2005 ; Nara (Japan)
AIP Conference Proceedings ; 830 , 1 ; 201-212
2006-05-02
12 pages
Conference paper
Electronic Resource
English
Plasma Diagnostics of a Forward Laser Plasma Accelerated Thruster
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