ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
Simple analysis of the nearly Maxwellian angular distributions of the ribbon H− ion beams extracted from a long, narrow slit on the 8X source yields the H− temperature, kTH−. The derived kTH− are 0.1–0.3 eV for a 2-A dc discharge and 0.7–1.3 eV for a 400-A pulsed discharge. Because this diagnostic method relies on simple electronic techniques, it allows rapid study of the dependences of kTH− on the source parameters, such as gas flow and discharge current. These variations of kTH− in the 8X source are qualitatively similar to those observed for the H-atom temperature, kTH0, in the 4X source, another Penning surface-plasma source.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1142835