Open AccessCryostat for cooling samples in the study of low-temperature structural and magnetic phase transitions by neutron diffraction
Author(s) -
Evgeni Popov,
A. N. Chernikov,
A. I. Beskrovnyĭ,
J. Waliszewski,
M. N. Mirzayev
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1492/1/012054
Subject(s) - cryostat , neutron diffraction , neutron , materials science , phase (matter) , head (geology) , diffraction , nuclear physics , optics , physics , condensed matter physics , superconductivity , geology , quantum mechanics , geomorphology
A vertical cryostat was developed built around a Sumitomo RDK-101D cold head. The cryostat is intended for investigating the structure and phase transformations of different materials via neutron diffraction experiments on samples under high vacuum of up to 10 −5 mbar. A working temperature of the sample close to 2 K was reached. The drift diameter of the head is 54 mm, making it possible to cool samples with a height of 55 mm and 15 mm in diameter. Test measurements were conducted and illustrative spectra were recorded on the example of a sample of HoFeO 3 . The cryostat was designed and manufactured at the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research.