Abstract
Usingγ quanta from a56Co source, resonance fluorescence from a 3,452 keV level in121Sb was observed. Four deexcitingγ transitions were identified. The profile of theγ emission line, investigated by means of a high speed centrifuge, yields with a novel variety of Doppler shift analysis a lifetime of τ4,298=(110±50)fs for theγ emitting 4,298 keV level in56Fe. The lifetime of the 3,452 keV level was determined to beτ 3,452 =(200±100)fs.
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This work was supported in part by Deutsche Forschungsgemeinschaft.
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Endres, G., Langhoff, H., Mückenheim, W. et al. Nuclear resonance fluorescence in121Sb. Z Physik A 302, 61–62 (1981). https://doi.org/10.1007/BF01425103
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DOI: https://doi.org/10.1007/BF01425103