M?ssbauer spectroscopy

A brief account of the M?ssbauer effect and its applications is given. The most popular types of spectrometer are described and their deficiencies considered in some detail. The problems of the reduction of data are dealt with, and the problems of obtaining spectra at low temperatures. A final section considers the choice of counters for transmission and backscattering methods. between the nucleus and the atomic electrons, called the hyperfine interactions. The strength and nature of these interactions depend strongly on the electronic, chemical and magnetic state of the atom. Thus a spectrum of the nuclear resonant frequencies can give valuable information about the atom and its surroundings. The hyperfine interactions can be understood by reference to figure 1, which is drawn for the case of 57Fe. On the extreme

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