1. Positrons: probes of matter
The positron (denoted e
+
), the antiparticle of the electron (denoted e
-
), has the same characteristics as the latter, with the exception of its charge and magnetic moment, which are of opposite sign. In a vacuum, the positron is stable (lifetime greater than 4.2 × 10
23
years)
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Positrons: probes of matter
Positron interactions in solids
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Installation costs
In terms of budget, the electronic part of the three classic techniques costs around e30,000 (in 2000) each. More sophisticated set-ups can obviously increase this price. To the price of the electronics and sources, we must of course add the cost of the cryogenic facilities and the mechanical parts of the apparatus (angular correlation). Finally, a complete bibliography can be found in the works cited in the references...
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