ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
Recent studies on the Munich laser ion source were aimed at the understanding and optimization of the production mechanism of negative ions. The possibility of extremely high, pulsed negative ion currents is due to the outstanding features of the laser produced plasma: a high electron density in conjunction with a low electron temperature. The intensity of the laser beam is restricted to a relatively small range from 5×107 up to 1×109 W/cm2. More than 20 different ions have been produced from pure element targets and from a number of salts. The yields achieved are in good agreement with a model including Saha equilibrium distributions. The comparison between pure elemental targets and alloys or salt shows a strong influence of ions with a low ionization potential on the negative ion production.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1145240
