Measure of the energy difference between the source ()
and the absorber()
transition. The measured Doppler velocity shift,
, is related to the energy difference by
is the Mössbauer gamma energy and
is the speed of light in vacuum.
PAC, 1976, 45, 211
(Nomenclature and Conventions for Reporting Mossbauer Spectroscopic Data)
on page 214
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook