Speaker
Giuseppe Costa
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P1.3003.pdf
Electrical and magnetic spectrometry of ions emitted from
laser-generated plasma at 1010 W/cm2 intensity
G. Costa and L. Torrisi
Dipartimento di Scienze Fisiche - MIFT, Università di Messina, V.le F.S. D’Alcontres 31,
98166 Messina, Italy
Plasmas were generated by 3 ns pulsed laser at 1064 nm wavelength using intensities of about
1010 W/cm2 irradiating solid targets with different composition. The ion emission was inves-
tigated with time-of-flight measurements giving information of the ion velocity, charge state
generation and ion energy distribution. Measurements use an electrostatic ion energy analyzer
and a coil to generate a magnetic field suitable to deflect ions towards a Faraday cup and/or a
secondary electron multiplier.
Ion acceleration of the order of hundred eV per charge state, plasma temperature of the order
of tens eV, charge states up to about 4+ and Boltzmann energy distributions were obtained in
carbon, aluminum and copper targets.
The presented results represent useful plasma characterization methods for many applications
such as the new generation of laser ion sources, proton ion sources, pulsed laser deposition
techniques and post ion acceleration systems.
