Neutron Time-of-Flight Stress Diffractometry


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Abstract

Over recent decades, the diffraction of thermal neutrons has become a powerful tool for solving various actual problems of materials science. To carry out scientific investigations on this theme, a neutron time-of-flight Fourier diffractometer FSD was developed and has been successfully operated for many years at the IBR-2 pulsed reactor in the Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna. To ensure high resolution of the instrument, a special correlation technique is used, i.e., a fast Fourier chopper for modulation of the primary-neutron-beam intensity and the reverse time-of-flight method for data acquisition. The current state of the FSD diffractometer and its capabilities are described and examples of performed experiments are given.

About the authors

G. D. Bokuchava

Joint Institute for Nuclear Research

Author for correspondence.
Email: gizo@nf.jinr.ru
Russian Federation, Dubna, 141980

I. V. Papushkin

Joint Institute for Nuclear Research

Email: gizo@nf.jinr.ru
Russian Federation, Dubna, 141980

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