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neutron scattering methods

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Journal Article
Published: 01 March 2002
European Journal of Mineralogy (2002) 14 (2): 203–224.
... scattering diffraction incoherent neutron scattering quasi-elastic neutron scattering Until recently neutron scattering methods had been applied only sporadically to problems in the Earth and Mineral Sciences. The current growing interest in the use of neutron scattering in this field is partly...
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Series: Geological Society, London, Special Publications
Published: 01 January 2017
DOI: 10.1144/SP454.1
EISBN: 9781786203359
... Opalinus Clay samples. The porosity methods employed are helium-pycnometry, water and mercury injection porosimetry, liquid saturation and immersion, and low pressure N 2 sorption, as well as small-angle to ultra-small-angle neutron scattering (SANS–USANS). These were used in addition to mineralogical...
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Journal Article
Published: 01 February 2016
Vadose Zone Journal (2016) 15 (2): vzj2015.04.0056.
...Galina Yakubova; Aleksandr Kavetskiy; Stephen A. Prior; H. Allen Torbert Abstract The herein described inelastic neutron scattering (INS) method of measuring soil carbon was based on a new procedure for extracting the net carbon signal (NCS) from the measured γ spectra and determination...
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Series: Clay Minerals Society Workshop Lectures
Published: 01 January 2016
DOI: 10.1346/CMS-WLS-21-2
EISBN: 9781881208471
...-and nano-scale heterogeneities. Pore structure is a known control on flow at the core scale; for unconventional reservoirs, however, pore-size distributions, pore accessibility, and connectivity are challenging to evaluate. In the present study, a combination of neutron-scattering methods, fluid invasion...
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Journal Article
Journal: Geophysics
Published: 01 April 1951
Geophysics (1951) 16 (2): 260–276.
... be measured automatically in the well by two gamma detectors placed in a probe at fixed distances from a neutron source. Hydrogenous material between probe and rock increases the slope. Two or three inches of drilling mud seriously impair the sensitivity. Gamma radiation scattered by the walls of drill holes...
Journal Article
Published: 01 March 2002
European Journal of Mineralogy (2002) 14 (2): 331–348.
...Martin T. DOVE; Matthew G. TUCKER; David A. KEEN Abstract Neutron total scattering, provides simultaneous information about long-range order through the Bragg peaks and short-range order through the diffuse scattering. We review recent progress in applying total scattering methods for the study...
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Journal Article
Published: 01 December 2010
Russ. Geol. Geophys. (2010) 51 (12): 1295–1303.
.... An appropriate calculation method is the Monte Carlo technique. Since the multiplicity of neutron scattering is low and, for gamma rays, only the unscattered component is of interest, the numerical simulation is a fast process. The practical implementation of the method requires the use of advanced developments...
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Journal Article
Journal: Geophysics
Published: 30 August 2024
Geophysics (2024) 89 (5): D275–D285.
... sensitivity of the macroscopic scattering cross section to the fractures decreases when the fracture density is high due to the neutron self-shielding phenomenon. Therefore, an improved fracture density evaluation method is applied, which combines the macroscopic capture cross section and the neutron self...
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Series: Clay Minerals Society Workshop Lectures
Published: 01 January 2014
DOI: 10.1346/CMS-WLS-19–4
EISBN: 9781881208433
... total scattering methods are being applied in studies of the structural, physical, chemical, and magnetic changes taking place during ferrihydrite transformations. Neutron total scattering is shedding new light on the association of water with the surfaces and in the bulk structure of ferrihydrite...
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Journal Article
Published: 01 March 2002
European Journal of Mineralogy (2002) 14 (2): 241–249.
...Alessandro PAVESE Abstract The coherent diffraction of neutrons from powder samples combined with the Rietveld refinement method has proven to be a versatile tool, providing insights into a variety of mineralogical crystal-chemical studies that require measurements at non-ambient conditions...
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Journal Article
Journal: Geophysics
Published: 20 July 2015
Geophysics (2015) 80 (5): D501–D523.
...Oyinkansola Ajayi; Carlos Torres-Verdín; William E. Preeg ABSTRACT Neutron-induced gamma-ray spectroscopy measurements originate from inelastic neutron scattering and thermal neutron capture of chemical elements excited by neutrons; they are widely used to quantify in situ elemental and mineral...
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Journal Article
Published: 01 August 2001
The Canadian Mineralogist (2001) 39 (4): 1131–1138.
... Synthetic, polycrystalline samples of alunite [K 0.88 (H 3 O) 0.12 Al 2.64 (SO 4 ) 2 (OH) 4.92 (H 2 O) 1.08 ] and oxonium-substituted alunite [H 3 OAl 2.87 (SO 4 ) 2 (OH) 5.61 (H 2 O) 0.39 ] have been investigated using incoherent, inelastic neutron-scattering (IINS) methods in order to determine the nature...
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Series: European Mineralogical Union Notes in Mineralogy
Publisher: European Mineralogical Union
Published: 01 January 2005
DOI: 10.1180/EMU-notes.7.13
EISBN: 9780903056465
... a matter of speculation before the discovery of scattering by crystals. Scattering techniques were de-veloped over the subsequent years, not only using X-ray radiation, but also involving electron and neutron scattering phenomena. Nowadays, with the evolution of powerful radiation sources, such as neutron...
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Series: European Mineralogical Union Notes in Mineralogy
Published: 01 January 2002
DOI: 10.1180/EMU-notes.4.7
EISBN: 9780903056397
... at reactors, the neutron energy is usually measured by orienting an analyser crystal at the proper scattering angle, at pulsed sources the energy is conveniently measured by the neutron time-of-flight method. In the time-of-flight method, the transit time of neutrons over a flight path is electronically...
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Series: European Mineralogical Union Notes in Mineralogy
Published: 01 January 2002
DOI: 10.1180/EMU-notes.4.12
EISBN: 9780903056397
... displacement parameters obtained by diffraction methods from ordered crystal structures. A few concepts will be illustrated using cuprite-type structures as case studies: (1) the advantage of neutron nuclear scattering over X-ray scattering by electrons in discriminating the vibrational contribution from...
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Book Chapter

Publisher: EAGE
Published: 01 January 2014
DOI: 10.3997/9789462821088_ch_037
EISBN: 9789462821088
... radioactive elements, which is used for stratigraphic classification. Density log is the method of measuring formation density utilizing the anti-proportional relationship between formation density and Compton scatter of the gamma-ray. The neutron log is the method to estimate the water content...
Image
Average values of carbon weight percent for 8-cm soil layer measured by dry combustion (gray) and mobile inelastic neutron scattering (MINS; black) methods for the open field (OF) site at Camp Hill (points) and average field values (solid lines).
Published: 01 February 2016
Fig. 11. Average values of carbon weight percent for 8-cm soil layer measured by dry combustion (gray) and mobile inelastic neutron scattering (MINS; black) methods for the open field (OF) site at Camp Hill (points) and average field values (solid lines).
Journal Article
Journal: Elements
Published: 01 June 2021
Elements (2021) 17 (3): 155–160.
... for the detailed study of Earth materials. However, X-ray methods are not always adequate to fully characterize a material’s structural properties and dynamic processes. Unlike X-rays, which interact strongly with a material’s electrons, neutrons scatter from a material’s nuclei. The neutron’s fundamental...
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Journal Article
Published: 01 August 2001
Mineralogical Magazine (2001) 65 (4): 489–507.
...M. G. Tucker; D. A. Keen; M. T. Dove Abstract Total neutron scattering measurements, analysed using a modification of the reverse Monte Carlo modelling method to account for long-range crystallographic order, have been used to describe the temperature-dependent behaviour of the structure of quartz...
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Journal Article
Published: 01 April 2000
Mineralogical Magazine (2000) 64 (2): 267–283.
...M. T. Dove; A. K. A. Pryde; D. A. Keen Abstract The phase transitions in tridymite and the nature of the high-temperature phase are investigated using a combination of Rigid Unit Mode theory, neutron total scattering measurements analysed using the Reverse Monte Carlo method, and molecular dynamics...
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