What is it about?
In this paper, we present detailed work on the calibrations of wavelength, q scale, dead time, and absolute intensity of Suanni by comparative measurements of various standard samples (glassy carbon, mesoporous silica, C60, C70, h-PS/d-PS, AgBe, monodisperse PMMA nanoparticle suspension).
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Why is it important?
Suanni spectrometer, the first routinely used small-angle neutron scattering (SANS) spectrometer located at Mianyang, China, has been put into use since 2014, and more and more users have been engaged in performing experiments. The calibration of Suanni becomes indispensable for users and instrument scientists to determine the performance of Suanni, and improve accuracy of the collected data. Additionally, in the near future, another reactor based (in Beijing) and a spallation source based (in Dongguan) SANS instruments will be put into service in China. The established calibration methods and measured data in this work would also serve as a benchmark for the other two instruments.
Perspectives
These data provide informative reference for the users and valuable diagnostic tools for instrument scientists.
Qiang Tian
Southwest University of Science and Technology
Read the Original
This page is a summary of: Calibration of the Suanni small-angle neutron scattering instrument at the China Mianyang Research Reactor, Journal of Applied Crystallography, November 2018, International Union of Crystallography,
DOI: 10.1107/s1600576718015285.
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