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pro vyhledávání: '"Mark Lubberink"'
Publikováno v:
IEEE Symposium Conference Record Nuclear Science 2004..
Several long-lived positron emitters, such as /sup 76/Br(t/sub 1/2/=16.2 h, 55% /spl beta//sup +/) and /sup 124/I(t/sub 1/2/=4.2 d, 23% /spl beta//sup +/, emit photons simultaneously with positrons. Coincidence detection of these photons with each ot