Bragg-edge neutron transmission spectrum analysis using a high-speed-camera-type time-of-flight neutron imaging detector

Sato, Hirotaka; Mochiki, Koh-ichi; Kenta, Tanaka; Ishizuka, Kôzô; Ishikawa, Hiroyasu; Kamiyama, Takashi; Kiyanagi, Yoshiaki

doi:10.1016/j.nima.2019.162501

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…Here, RITS is advantageous in that, for a precise analysis, it uses the spectrum profile correction for the crystallographic texture and primary extinction effects. [8][9][10][11][12][13][14] Thus, Bragg-edge neutron transmission imaging combined with RITS is accepted as an effective tool for the imaging of bulk information of crystalline phase volume fractions. However, some issues remain concerning this method.…”

Section: Improvement Of Bragg-edge Neutron Transmission Imaging For Evaluating the Crystalline Phase Volume Fraction In Steel Composed Ofmentioning

confidence: 99%

“…2.2.1. Experiment at a Low Wavelength Resolution with the Cold Neutron Beamline at HUNS For measuring neutron transmission spectra at a low wavelength resolution, we conducted a neutron TOF-imaging experiment with the coupled-type cold neutron source beamline 14) at HUNS. It uses an electron linear accelerator with the power 1.2 kW for our experiment.…”

Section: Wavelength-resolved Neutron Transmission Imaging Experimentsmentioning

confidence: 99%

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Improvement of Bragg-edge Neutron Transmission Imaging for Evaluating the Crystalline Phase Volume Fraction in Steel Composed of Ferrite and Austenite

Sato

et al. 2021

ISIJ Int.

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Section: Improvement Of Bragg-edge Neutron Transmission Imaging For Evaluating the Crystalline Phase Volume Fraction In Steel Composed Ofmentioning

confidence: 99%

Section: Wavelength-resolved Neutron Transmission Imaging Experimentsmentioning

confidence: 99%

Improvement of Bragg-edge Neutron Transmission Imaging for Evaluating the Crystalline Phase Volume Fraction in Steel Composed of Ferrite and Austenite

Sato

et al. 2021

ISIJ Int.

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“…Traditional imaging device collecting light induced by neutrons is mainly based on CCD or CMOS. A camera-type detector based on a high-frame-rate CMOS camera was developed to be applied in energy resolved neutron imaging experiments [14]. However, it still faced limitations in acquisition dead time and data processing time due to the slow read-out.…”

Section: Introductionmentioning

confidence: 99%

An energy resolved neutron imaging detector based on boron doped nMCP coupled with a time stamping optical camera

Tan,

Song,

Zhou

et al. 2024

J. Inst.

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Energy resolved neutron imaging has developed rapidly due to its advantage on testing the inner structure of crystal samples. Neutron detector is one of the key components to determine the imaging results quality. The neutron sensitive microchannel plate (nMCP) has been widely used in energy resolved neutron imaging experiments because of the high spatial and timing resolution. However, the ability to adjust field-of-view (FOV) and spatial resolution has not been realized in the nMCP detector, which is an attractive capability in energy resolved neutron imaging experiments. In this paper, an energy resolved neutron imaging detector was developed by coupling nMCP with a time stamping camera. The neutrons were absorbed by nMCP and converted into light through a phosphor screen. Then the light was focused on the camera by optical lens. A data algorithm was designed to improve the data quality. By changing the magnification of the optical lens, large FOV (46mm diameter) and high spatial resolution (26 μm) were realized in the experiments at CSNS beamline 20. The energy resolved ability was demonstrated by a Bragg-edge transmission imaging experiment for aluminum and stainless-steel samples. The performance of this detector makes it a promising candidate used in energy resolved neutron imaging.

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Neutron applications developing at compact accelerator-driven neutron sources

Kiyanagi

2021

AAPPS Bull.

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Neutrons have been used in a wide field of applications by using various neutron sources. Material science is one of the widest research fields. The activity is supported by nuclear research reactors and high-intensity spallation neutron sources based on a high-intensity proton accelerator. However, it is desired to perform a measurement when researchers want to do and to perform adventuresome experiments that have not yet confirmed its importance. Furthermore, trial and error measurements are necessary to improve a measurement method. Compact accelerator-driven neutron sources are suitable for such usage and in some cases can complement the measurement at a large facility. The use of the compact neutron source has sometimes led to new methods. Other than material science, a new application of soft error acceleration test has been performed at the compact accelerator-driven neutron sources. Another neutron application is radiation therapy called as boron neutron capture therapy. In this field, nuclear reactor neutron sources have been used but many of them shut down. It was desired to construct the BNCT facility near a hospital. Therefore, BNCT facilities based on the compact accelerator have been constructed in the world. Here, the neutron sources and new methods and applications developing at compact accelerator-driven neutron sources are introduced.

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Bragg-edge neutron transmission spectrum analysis using a high-speed-camera-type time-of-flight neutron imaging detector

Cited by 4 publications

References 23 publications

Improvement of Bragg-edge Neutron Transmission Imaging for Evaluating the Crystalline Phase Volume Fraction in Steel Composed of Ferrite and Austenite

Improvement of Bragg-edge Neutron Transmission Imaging for Evaluating the Crystalline Phase Volume Fraction in Steel Composed of Ferrite and Austenite

An energy resolved neutron imaging detector based on boron doped nMCP coupled with a time stamping optical camera

Neutron applications developing at compact accelerator-driven neutron sources

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