engleski

Nuclear Resonant Scattering of Gamma Rays in 199Hg

The resonant nuclear scattering of the 209 keV gamma rays in 199Hg has been studied by the high speed rotor technique, and the decrease of scattering at speeds above the optimum has been observed. From the measured ratio of resonant scattering to Rayleigh scattering, and with allowance for internal conversion transition, the mean life of the 209 keV level is found to be (7.8 plus-minus 1.2)x 10 to-11.

gamma rays ; resonant ; scattering

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