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Volume 40, Number 1, 1996
Terrestrial cosmic rays and soft errors |
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Table of contents:  HTML |
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Copyright info |
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Portable Faraday cup for nonvacuum proton beams |
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by J. F. Ziegler, P. A. Saunders, and T. H. Zabel |
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A portable Faraday cup design is described for the accurate measurement
of large-diameter, low-current, and high-energy proton beams traveling in
air. The unit has been tested with protons from 4 to 300 MeV. The unit
has an accuracy of 10% for beams of 1 pA, improving to about 2% accuracy
for ion currents of 20 pA to 1 µA.
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