The University of Washington polarized ion source : International conference on ion sources
Gossett, C. A. ; Balsley, D. R. ; Harper, G. C. ; Bitz, C. M. ; Eisenberg, J. K. ; Rogers, J. A.
[S.l.] : American Institute of Physics (AIP)
Published 1990
[S.l.] : American Institute of Physics (AIP)
Published 1990
| ISSN: |
1089-7623
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
Electrical Engineering, Measurement and Control Technology
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| Notes: |
A colliding-beam polarized ion source has been in operation for nuclear physics experiments at the University of Washington tandem-linac facility since late 1987. Thermal beams of polarized atomic hydrogen or deuterium are ionized by charge exchange in collisions with a collinear, fast, neutral cesium beam. Negative ions are extracted, and the polarization symmetry axis is precessed to any desired direction in a crossed-field spin precessor. The design of the cesium-beam system differs from previous sources in that magnetic deflection and focusing are used, and beams of several milliamperes at energies of 40 keV are produced. The source is controlled by a microprocessor-based system which is connected via fiber-optic links to the main linac-control and data-acquisition computers. To date, currents of 1 μA and polarizations in excess of 90% have been produced.
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| Type of Medium: |
Electronic Resource
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| URL: |