Laboratory Modeling of the Giant Gravitational Shift of Gamma-Radiation Frequency

Resumo

A laboratory experiment modeling the Einsteinian frequency shift of gamma radiation in the gravity field by means of the spectral shift in the field of the centrifugal potential, formed by the ultrafast rotation of a radiation source on a centrifuge is proposed. The resonant detector of gamma radiation immobile with respect to the source is rotating together with the source. These centrifuges traditionally used for the isotopes separation are shown to provide the giant frequency shifts three orders of magnitude better the value obtained in the classical Pound–Rebka experiment. Controlled spectral shifts of the resonant frequency stipulated both by the spatially nonuniform and nonstationary centrifugal acceleration arising due to displacement of the source along the radius and by modulation of the rotational frequency are examined. These spectral variations pave the way to modeling the spatially nonuniform and nonstationary gravity fields. The perspectives of flexible control of spectral lines shifts for the analysis of the fine structure of the radiation and absorption spectra are noted.