Mossbauer spectrometer encyclopedia
Mossbauer spectrometer Mossbauer (1929-2011) shared the 1961 Nobel Prize in physics with Hofstad for his study of the resonance absorption of gamma radiation and the discovery of the Münster effect.
Mossbauer spectrum definition
In 1957 R. Mossbauer found in experiments that some of the solid radioactive nuclei have a certain probability of being able to emit gamma rays without backflushing and that the gamma photons carry the full amount of nuclear transition energy. While in the ground state of the same kind of nuclear collimator emitted the former gamma rays have a certain chance of resonant recoilless absorption. This nuclear recoilless emission or resonance absorption of gamma rays was later called the Mössbauer effect.
Mossbauer spectrum applications
Due to the Mössbauer effect, the spectral linewidth Γ is of the same magnitude as the natural linewidth ΓH determined by the average life expectancy of the nuclear excited state, and thus has a very high energy resolution. Taking the transition of Fe core 14.4Kev as an example, the natural linewidth ΓH is 4.6x10eV and the energy resolution is on the order of 10 (the energy resolution of the atomic emission and absorption spectra can ideally be on the order of 10) It is an effective means of studying the superfine interactions in solids. Nowadays, it has been widely used in many fields such as physics, chemistry, materials science, physical metallurgy, biology and medicine, geology, mineralogy and archeology and has developed into an independent spectroscopy ---- Mooseborg Tale spectrum. 
The main features of Mossbauer spectrum method 
The main features of Mossbauer spectroscopy are: high resolution, high sensitivity, strong anti-interference ability, no damage to the sample, simple experimental technique and no complicated preparation technique of the sample. The object of study is the conductor , Semiconductors or insulators. Specimens can be crystalline or amorphous body materials, thin films or solid skins, as well as powders, ultrafine particles, and even frozen solutions. The main drawback is that only a limited number of nuclei have a Mössbauer effect and many of them must also be carried out at low temperatures or in laboratories with conditions for the preparation of the source, subjecting them to more restrictions in their application, in fact So far, only Mossbauer nuclear, such as Fe and Sn, has been fully utilized. Even so, it is still one of the important means of solid-state physics research, and in some cases it can not even be replaced by other means. With the further development of experimental techniques, it can be expected that it will continue to overcome its limitations. In each study Field play a greater role.

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