Modernized Liquid Helium-Free Closed-Cycle Cryostat for Mössbauer Research
S. S. Starchikov, К. О. Фунтов, V. A. Zayakhanov, К. В. Фролов, M. G. Klenov, I. Yu. Bondarenko, I. S. Lyubutin
Abstract
Abstract One of the problems in the use of closed-cycle cryostats for applied and basic scientific research is the transmission of mechanical vibrations to the sample. This is particularly relevant for Mössbauer spectroscopy and optical research methods since vibrations lead to broadening of spectral lines. This paper presents various engineering approaches to reducing mechanical vibrations on a sample in closed-cycle cryostats, in particular for Mössbauer spectroscopy. The broadening of the spectral lines of the reference absorber, α-Fe foil, was analyzed and a comparison of the spectra of a FeBO3 single crystal of high structural quality before and after updating the cryostat was made. The obtained results can be used to develop new cryostats or improve existing ones.