Mössbauer spectroscopy is a versatile technique that can be used to provide information in many areas of science
such as Physics, Chemistry, Biology and Metallurgy. It can give very precise information about the chemical,
structural, magnetic and time-dependent properties of a material.
The Mossbauer effect which results in the resonant absorption/emission of γ-rays and gives us a means to probe the hyperfine interactions of an atoms nucleus and its surroundings.
A Mossbauer spectrometer system consists of a γ-ray source that is oscillated toward and away from the sample by a “Mossbauer drive”, a collimator to filter the γ-rays, the sample, and a detector.
The Centre has an unique and the only facility for preparation of Sources within the country.
|Currently two Spectrometers with 1024 channels MCA (Fast Comtec, USA) are operational.|
|Temperature range 400 K to 16 K (Janis Research CCR with Lakeshore temperature controller)|
|Transmission mode and Back scattering mode facility are available|
|Sources available are 57Co, 119Sn, 151Sm|
|Measurements can be carried out in an external magnetic field upto 1 Tesla|
|Analysis of the spectra is performed using LGFIT2 and NORMOS|
|Dr A K Ganguli||IIT, Delhi|
|Dr P K Chakrabarti||Burdwan University, West Bengal|