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Title: Advanced setup for high-pressure and low-temperature neutron diffraction at hydrostatic conditions

Abstract

We describe a design of the experimental setup for neutron diffraction studies at low temperatures and hydrostatic pressure. The significant benefit of the setup, compared to the previous methods, is that it makes possible the simultaneous collection of neutrons diffracted at the 30 deg. -150 deg. range with no contamination by the primary scattering from the sample surroundings and without cutting out the incident and diffracted beams. The suggested design is most useful for third-generation time-of-flight diffractometers and constant wavelength instruments. Application of the setup expands the capabilities of high-pressure neutron diffraction, allowing time-resolved kinetics and structural studies, multihistogram Rietveld, and pair distribution function and texture analyses. The high efficiency of the setup was proven for the HIPPO diffractometer at Los Alamos Neutron Science Center under pressures up to 10 kbar and temperatures from 4 to 300 K.

Authors:
;  [1]
  1. LANSCE-12, Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States)
Publication Date:
OSTI Identifier:
20722909
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 76; Journal Issue: 6; Other Information: DOI: 10.1063/1.1928448; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DESIGN; DIFFRACTOMETERS; DISTRIBUTION FUNCTIONS; EFFICIENCY; NEUTRON DIFFRACTION; NEUTRONS; PRESSURE RANGE MEGA PA 10-100; TEMPERATURE RANGE 0065-0273 K; TEXTURE; TIME RESOLUTION; TIME-OF-FLIGHT METHOD

Citation Formats

Lokshin, Konstantin A., and Zhao Yusheng. Advanced setup for high-pressure and low-temperature neutron diffraction at hydrostatic conditions. United States: N. p., 2005. Web. doi:10.1063/1.1928448.
Lokshin, Konstantin A., & Zhao Yusheng. Advanced setup for high-pressure and low-temperature neutron diffraction at hydrostatic conditions. United States. doi:10.1063/1.1928448.
Lokshin, Konstantin A., and Zhao Yusheng. Wed . "Advanced setup for high-pressure and low-temperature neutron diffraction at hydrostatic conditions". United States. doi:10.1063/1.1928448.
@article{osti_20722909,
title = {Advanced setup for high-pressure and low-temperature neutron diffraction at hydrostatic conditions},
author = {Lokshin, Konstantin A. and Zhao Yusheng},
abstractNote = {We describe a design of the experimental setup for neutron diffraction studies at low temperatures and hydrostatic pressure. The significant benefit of the setup, compared to the previous methods, is that it makes possible the simultaneous collection of neutrons diffracted at the 30 deg. -150 deg. range with no contamination by the primary scattering from the sample surroundings and without cutting out the incident and diffracted beams. The suggested design is most useful for third-generation time-of-flight diffractometers and constant wavelength instruments. Application of the setup expands the capabilities of high-pressure neutron diffraction, allowing time-resolved kinetics and structural studies, multihistogram Rietveld, and pair distribution function and texture analyses. The high efficiency of the setup was proven for the HIPPO diffractometer at Los Alamos Neutron Science Center under pressures up to 10 kbar and temperatures from 4 to 300 K.},
doi = {10.1063/1.1928448},
journal = {Review of Scientific Instruments},
number = 6,
volume = 76,
place = {United States},
year = {Wed Jun 15 00:00:00 EDT 2005},
month = {Wed Jun 15 00:00:00 EDT 2005}
}