Radioactivity ion sources for miniaturized ion mobility spectrom

Radiant energy – Ion generation – Field ionization type

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258288, C23C 836

Patent

active

060640707

ABSTRACT:
The invention relates to a radioactive ion source for generation of low-energy .alpha. or .beta. radiation. Both the activity of the source as well as the range of radiation can be adjusted to the respective application. Due to a carrier layer of semiconductive material, release of radioactive substances is prevented.

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Amersham Buchler GmbH Product Brochure, Wide Area Reference Sources, Alpha/Beta Planchet Sources--Type 16/25, pp. 1-2. No dated.
Francois J. Wuilleumier et al., Vacuum Ultraviolet Radiation Physics, Proceedings of the 10.sup.th VUV Conference, World Scientific, Paris, Jul. 27-31, 1992, pp. 394-407.
Industrial Gauging and Analytical Instrumentation Sources, Amersham, Amersham International plc, Amersham Place, Little Chalfont, Buckinghamshire, England, HP7 9NA, pp. 2 and 29. No dated.

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