Half-life Measurements of 6He, 16N, 19O, 20F, 28Al, 77mSe and 110Ag

The half-life of different isotopes, activated by neutrons in the reactor R2-0 by means of a pneumatic rabbit, have been measured with a pulse height analyzer working in its multiscale mode of operation. A Nal(Tl)-scintillation spectrometer was used as detector. Least squares analysis calculated by the Mercury computer were performed for each measurement. The following weighted mean values of the half-lives are obtained 6He: 0.862 ± 0.017 sec.; 16N: 7.31 ± 0.04 sec.; 19O: 29.1 ± 0.3 sec.; 20F: 11.56 ± 0.05 sec.; 28Al: 2.31 ± 0.01 min.; 77mSe: 18.83 - 0.04 sec.; and 110Ag: 24.42 ± 0.14 sec