LXXV. Positrons from 25Al and 26mAl

1 June 1955

journal article
research article
Published by Taylor & Francis in Journal of Computers in Education

Vol. 46 (377) , 663-669
https://doi.org/10.1080/14786440608521113

Abstract

The positron emitters 7·4 sec ²⁵A1 and 6·6 sec ^26mAl have been produced by proton capture in ²⁴Mg and ²⁵Mg. Their subsequent decays have been investigated by means of a magnetic lens spectrometer. The maximum energies were measured as 3·24±0·03 mev for ²⁵Al and 3·21±0·03 mev for ^26mAl. The spectra show no complexities and yield straight Fermi plots down to about 1300 kev. The deviations from linearity at lower energies are probably due to scattering in the spectrometer. No gamma-rays except annihilation radiation was found.

Keywords

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