Variant of the focusing monochromator for experiments on excitation of isotopes nuclear levels using synchrotron radiation

Calculation of an optimal variant of synchrotron radiation (SR) monochromatization from a bending magnet in a storage ring with effective use of solid angles of SRΔΘZ=2.5x10-4rad, αr=10-2rad. is presented. Energy resolution of the focusing monochromator is Δλ/λ ≅104. The monochromator is designed for preliminary monochromatization in experiments on excitation of nuclear levels of Fe57 and other Moessbauer isotopes using SR, as well as for Moessbauer isotopes using SR, as well as for experiments requering high illuminance of the specimen by low energy γ quanta flux. Monochromator tuning to Fe57 γ quanta energy (Eγ=1441247 keV) is supposed to be at SR beam using a metrological monochromator. 12 refs.; 18 figs.; 4 tabs