Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
57 (1986), S. 840-846
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A H−-surface plasma source with a cesiated converter electrode has been operated continuously. Out of a single extraction aperture of a diameter of 13 mm, a H− current of 50 mA has been extracted with reasonable beam properties. The current was limited by the extraction voltage of 30 kV. The dependence of the generated H− current on different parameters has been examined. In addition, the profile and the emittance of the extracted ion beam has been measured. At optimum conditions, the beam divergence was found to be ±22 mrad. The normalized rms emittance was measured to be 0.4×10−6 π mrad. The emittance of the beam is mainly determined by the geometrical arrangement of the converter electrode with respect to the extraction aperture.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1138821
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