The Summary of Experimental Results on the Observation of a Gamma Resonance of the Long-Lived Isomer AG-109m
Davydov, A. V.
Original · EN
The data obtained in 11 experiments performed up to now with gamma sources made of silver metal doped by ¹09Cd show that there is no large broadening of ¹09mAg Mössbauer gamma line with energy of 88.03 keV, that is the theoretically predicted gamma line broadening by 10⁵ times as compared with a natural width via the dipole-dipole interaction of nuclear magnetic moments is absent. The designed in ITEP instrument of quite new type - so called "gravitational gamma spectrometer" permitted to observe the form of ¹09mAg gamma resonance which turned out to be 10⁸ times narrower than that of well known nuclide ⁵7Fe. Some ideas are discussed as an attempt to explain this situation.
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