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neutron sources

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Journal Article
Published: 01 March 2002
European Journal of Mineralogy (2002) 14 (2): 225-232.
...Björn WINKLER Abstract Neutron sources and the instrumentation commonly employed in neutron scattering are described. Angle-dispersive powder diffractometers at continuous sources resemble their counterparts in X-ray crystallography. However, to utilize the incident beam fully, sample sizes...
FIGURES | View All (5)
Journal Article
Journal: Elements
Published: 01 February 2006
Elements (2006) 2 (1): 15-21.
...Stephen R. Sutton; Marc W. Caffee; Martin T. Dove Abstract User research facilities around the world offer tremendous opportunities for scientific experimentation by members of the Earth science community. Synchrotron radiation sources, neutron sources, mass spectrometers, and others represent...
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Image
Description of the SDEF card used to model the pulsed <b>neutron</b> <b>source</b> of the...
in > Geophysics
Published: 08 January 2019
Figure 7. Description of the SDEF card used to model the pulsed neutron source of the Longhorn Neutron-Gamma density LWD logging tool in MCNP.
Image
The European Synchrotron Radiation Facility (ESRF) and the <b>neutron</b> <b>source</b>, ...
in > Elements
Published: 01 February 2006
The European Synchrotron Radiation Facility (ESRF) and the neutron source, Institut Laue-Langevin (ILL; dome adjacent to the ESRF) in Grenoble, France. P hoto courtesy ESRF
Image
Artist&#x27;s rendition of the Spallation <b>Neutron</b> <b>Source</b> (SNS) at Oak Ridge Nati...
in > Elements
Published: 01 February 2006
FIGURE 5 Artist's rendition of the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory, USA. Also shown is the location of the Center for Nanophase Materials Science, one of five new nanoscale science research centers in the US.
Image
Layout of the Spallation <b>Neutron</b> <b>Source</b> (SNS) in Oak Ridge, Tennessee, U.S....
Published: 01 January 2006
Figure 10. Layout of the Spallation Neutron Source (SNS) in Oak Ridge, Tennessee, U.S.A. (courtesy of Oak Ridge National Laboratory).
Series: Clay Minerals Society Workshop Lectures
Published: 01 January 2016
DOI: 10.1346/CMS-WLS-21-9
EISBN: 9781881208471
... Scherrer Institute (PSI), Switzerland. Neutron imaging was performed using the ICON beamline of the Swiss Spallation Neutron Source (SINQ) at PSI. The LA-ICP-MS data sets were recorded at the analytical laboratories of the Trace Element and Micro Analysis Group of the Swiss Federal Institute of Technology...
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Journal Article
Published: 01 August 2008
Vadose Zone Journal (2008) 7 (3): 1035-1047.
.... We performed our experiments at the Spallation Neutron Source of the Paul Scherrer Institute, Villigen, Switzerland, using the NEUTRA facility (NEUtron Transmission RAdiography; see http://neutra.web.psi.ch/ ). This facility provides a primary neutron source, collimator, sample holder, and an image...
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Journal Article
Published: 01 June 2010
The Canadian Mineralogist (2010) 48 (3): 597-613.
... ell ( Holland & Redfern 1997 ). Neutron-diffraction data were obtained at the Intense Pulsed Neutron Source (IPNS) at Argonne National Laboratory using the time-of-flight Laue single-crystal diffractometer (SCD) ( Schultz et al. 1984 , Schultz 1987 ). Details of the data collection...
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Journal Article
Published: 01 January 2006
Reviews in Mineralogy and Geochemistry (2006) 63 (1): 313-362.
...-dispersive (typically based at a pulsed source). Diffraction experiments probe the differential cross (DC) section of neutrons ( Egelstaff 1992 ), d σ/ d Ω, defined as the ratio of the scattering cross (SC) section d σ scattered into the solid angle d Ω about the scattering angle . For an assembly...
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Journal Article
Published: 01 January 2003
American Mineralogist (2003) 88 (1): 195-210.
.... The main disadvantage of neutron relative to X-ray single-crystal diffraction is that the samples need to be substantially (~10×) larger. However, a single-crystal diffractometer (SCD) has been designed for the Spallation Neutron Source (SNS), which produces the most intense pulsed neutron beams...
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Journal Article
Published: 01 January 2006
Vadose Zone Journal (2006) 5 (1): 80-97.
... of water filled pores ( Bird et al., 2005 ). In this study, we focus on tomography with X-rays from tubes and synchrotrons and thermal neutrons to measure the size and the arrangement of pores. The synchrotron X-rays of an electron storage ring (Swiss Light Source [SLS], Paul Scherrer Institute...
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Journal Article
Journal: Geophysics
Published: 01 April 1951
Geophysics (1951) 16 (2): 260-276.
... on the hydrogen content of the rock. In a six-inch well, it increases with hydrogen content at points within about 16 inches of the neutron source and decreases at more distant points. The absolute gamma intensity is greatly reduced when non-hydrogenous gamma-ray or neutron absorbers, e.g., lead or boron...
Journal Article
Journal: Geophysics
Published: 01 February 1972
Geophysics (1972) 37 (1): 160-173.
...Jan A. Czubek Abstract The physical principles of a new method for uranium detection based on use of a pulsed source of neutrons are presented. The method employs measurement of the neutron time distributions in rock media following a burst of fast neutrons. A time- and energy-dependent (but space...
Journal Article
Published: 01 May 2004
Vadose Zone Journal (2004) 3 (2): 485-492.
... to low concentration of H in the formation and borehole environment. When L s is greater than the source-detector spacing of a neutron logging tool, the neutron log response can invert, resulting in potentially faulty interpretation of neutron logs. These measurement uncertainties in unsaturated basalts...
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Journal Article
Journal: Elements
Published: 01 February 2006
Elements (2006) 2 (1): 37-42.
...FIGURE 5 Artist's rendition of the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory, USA. Also shown is the location of the Center for Nanophase Materials Science, one of five new nanoscale science research centers in the US. ...
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Journal Article
Published: 01 January 2010
American Mineralogist (2010) 95 (1): 19-23.
... ] octahedra}. The unique distribution of magnetic Fe 3+ ions within the (001) sheets of jarosite results in its interesting magnetic structure and properties. Neutron diffraction experiments reveal that jarosite exhibits long-range magnetic ordering when cooled below 65 K, as evidenced by the appearance...
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Journal Article
Published: 01 June 2016
American Mineralogist (2016) 101 (6): 1483-1488.
... was used for the XES experiments. Angle-dispersive powder XRD measurements were performed at beamline 12.2.2 of the Advanced Light Source (ALS), Lawrence Berkeley National Laboratory (LBNL), and at HP-CAT, beamline 16-BM-D at the Advanced Photon Source (APS), Argonne National Laboratory (ANL). At ALS...
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Journal Article
Journal: Geophysics
Published: 10 December 2018
Geophysics (2018) 83 (6): D231-D246.
...Mathilde Luycx; Carlos Torres-Verdín ABSTRACT Neutron-activated gamma-ray (neutron-gamma) logging-while-drilling (LWD) measurements deliver bulk density estimates without using a chemical source. The assessment of bulk density is based on neutron-induced non-capture gamma rays, corrected...
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Journal Article
Published: 01 March 2002
European Journal of Mineralogy (2002) 14 (2): 263-289.
... results on the full strain/stress tensor in sandstone and on strain partitioning in polymineralic rocks are given. Future prospects of new high-intensity neutron sources are promising in performing combined structure, texture and stress analysis. New instruments are under construction and software...
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