scholarly journals Relation between Vickers Hardness and Bragg-Edge Broadening in Quenched Steel Rods Observed by Pulsed Neutron Transmission Imaging

2015 ◽  
Vol 56 (8) ◽  
pp. 1147-1152 ◽  
Author(s):  
Hirotaka Sato ◽  
Tomoya Sato ◽  
Yoshinori Shiota ◽  
Takashi Kamiyama ◽  
Anton S. Tremsin ◽  
...  
Keyword(s):  
Vickers Hardness ◽  
Neutron Transmission ◽  
Transmission Imaging ◽  
Quenched Steel ◽  
Pulsed Neutron

scholarly journals Bragg-edge elastic strain tomography forin situsystems from energy-resolved neutron transmission imaging

2017 ◽  
Vol 1 (5) ◽  
Author(s):  
J. N. Hendriks ◽  
A. W. T. Gregg ◽  
C. M. Wensrich ◽  
A. S. Tremsin ◽  
T. Shinohara ◽  
...  
Keyword(s):  
Elastic Strain ◽  
Neutron Transmission ◽  
Transmission Imaging

scholarly journals Analysis and Mapping of Detailed Inner Information of Crystalline Grain by Wavelength-Resolved Neutron Transmission Imaging with Individual Bragg-Dip Profile-Fitting Analysis

2021 ◽  
Vol 11 (11) ◽  
pp. 5219
Author(s):  
Yosuke Sakurai ◽  
Hirotaka Sato ◽  
Nozomu Adachi ◽  
Satoshi Morooka ◽  
Yoshikazu Todaka ◽  
...  
Keyword(s):  
Crystal Orientation ◽  
Perfect Crystal ◽  
Imaging Method ◽  
Transmission Imaging ◽  
Profile Fitting ◽  
Imaging Results ◽  
Integrated Intensity ◽  
Small Change ◽  
Integrated Intensities ◽  
Pulsed Neutron

As a new method for evaluating single crystals and oligocrystals, pulsed neutron Bragg-dip transmission analysis/imaging method is being developed. In this study, a single Bragg-dip profile-fitting analysis method was newly developed, and applied for analyzing detailed inner information in a crystalline grain position-dependently. In the method, the spectrum profile of a single Bragg-dip is analyzed at each position over a grain. As a result, it is expected that changes in crystal orientation, mosaic spread angle and thickness of a perfect crystal can be evaluated from the wavelength, the width and the integrated intensity of the Bragg-dip, respectively. For confirming this effectiveness, the method was applied to experimental data of position-dependent Bragg-dip transmission spectra of a Si-steel plate consisting of oligocrystals. As a result, inner information of multiple crystalline grains could be visualized and evaluated. The small change in crystal orientation in a grain, about 0.4°, could be observed by imaging the Bragg-dip wavelengths. By imaging the Bragg-dip widths, both another grain and mosaic block in a grain were detected. Furthermore, imaging results of the integrated intensities of Bragg-dips were consistent with the results of Bragg-dip width imaging. These small crystallographic changes have not been observed and visualized by previous Bragg-dip analysis methods.

scholarly journals High Spatial Resolution Neutron Transmission Imaging Using a Superconducting Two-Dimensional Detector

2021 ◽  
pp. 1-1
Author(s):  
Hiroaki Shishido ◽  
Kazuma Nishimura ◽  
The Dang Vu ◽  
Kazuya Aizawa ◽  
Kenji M Kojima ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Two Dimensional ◽  
Neutron Transmission ◽  
Transmission Imaging

scholarly journals On the Genesis of Artifacts in Neutron Transmission Imaging of Hydrogenous Steel Specimens

2020 ◽  
Vol 6 (4) ◽  
pp. 22
Author(s):  
Beate Pfretzschner ◽  
Thomas Schaupp ◽  
Andreas Hannemann ◽  
Michael Schulz ◽  
Axel Griesche
Keyword(s):  
Surface Roughness ◽  
Edge Effect ◽  
Neutron Radiography ◽  
Neutron Radiation ◽  
Neutron Transmission ◽  
Functional Correlation ◽  
Transmission Imaging ◽  
Detector Distance ◽  
Imaging Artifacts ◽  
Scattered Neutrons

Hydrogen-charged supermartensitic steel samples were used to systematically investigate imaging artifacts in neutron radiography. Cadmium stencils were placed around the samples to shield the scintillator from excessive neutron radiation and to investigate the influence of the backlight effect. The contribution of scattered neutrons to the total detected intensity was investigated by additionally varying the sample-detector distance and applying a functional correlation between distance and intensity. Furthermore, the influence of the surface roughness on the edge effect due to refraction was investigated.

scholarly journals Mapping of axial plastic zone for roller bearing overloads using neutron transmission imaging

2018 ◽  
Vol 156 ◽  
pp. 103-112 ◽  
Author(s):  
A. Reid ◽  
I. Martinez ◽  
M. Marshall ◽  
T. Minniti ◽  
S. Kabra ◽  
...  
Keyword(s):  
Plastic Zone ◽  
Roller Bearing ◽  
Neutron Transmission ◽  
Transmission Imaging

The sin2 ψ-method in pulsed neutron transmission

2001 ◽  
Vol 9 (2) ◽  
pp. 289-294 ◽  
Author(s):  
A. Steuwer ◽  
P. J. Withers ◽  
J. R. Santisteban ◽  
L. Edwards ◽  
M. E. Fitzpatrick ◽  
...  
Keyword(s):  
Neutron Transmission ◽  
Pulsed Neutron

Investigation of a Lithium Indium Diselenide detector for neutron transmission imaging

2014 ◽  
Author(s):  
Eric Lukosi ◽  
Elan Herrera ◽  
Ashley C. Stowe ◽  
Robert Milburn ◽  
Dylan Richardson ◽  
...  
Keyword(s):  
Neutron Transmission ◽  
Transmission Imaging

scholarly journals Neutron transmission imaging with a portable D-T neutron generator

2021 ◽  
Author(s):  
Phillip Kerr ◽  
Nerine Cherepy ◽  
Jennifer Church ◽  
Gary Guethlein ◽  
James Hall ◽  
...  
Keyword(s):  
Neutron Generator ◽  
Neutron Transmission ◽  
Transmission Imaging
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