Published 1992
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Table top slow positron apparatus
Description
The characters of the compact, magnetically guided slow positron beam, which was constructed recently, are discussed. The system uses a 4 mCi 22Na source with a tungsten foil transmission moderator. The design of the compact electrostatic positron beam, whose construction is in progress, is shown. We calculated the slow positron yields from the tungsten foil moderator. It is shown that the conversion efficiency from fast to slow positrons is improved much in a modified geometry of moderators. That improvement is very useful for construction of the compact slow positron beam. (author)
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Additional details
Publishing Information
- Imprint Title
- Proceedings of the international conference on evolution in beam applications
- Imprint Pagination
- 817 p.
- Journal Page Range
- p. 401-406.
- Report number
- INIS-JP--007
Conference
- Title
- International conference on evolution in beam applications.
- Dates
- 5-8 Nov 1991.
- Place
- Takasaki, Gunma (Japan).
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 24047425
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- DOPPLER COEFFICIENT; EFFICIENCY; ENERGY DEPENDENCE; MODERATORS; POSITRON BEAMS; POSITRON SOURCES; SODIUM 22; TUNGSTEN
- Descriptors DEC
- BEAMS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; ELEMENTS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LEPTON BEAMS; LIGHT NUCLEI; METALS; NANOSEC LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; PARTICLE BEAMS; PARTICLE SOURCES; RADIATION SOURCES; RADIOISOTOPES; REACTIVITY COEFFICIENTS; SODIUM ISOTOPES; TRANSITION ELEMENTS; YEARS LIVING RADIOISOTOPES