Gallery

1. Welded steel plates
2. Macro-strain imaging during tensile testing
3. Martensite phase in ferritic steel
4. Strain tensor tomography in Al shrink-fit ring and plug
5. Lithium-ion battery
6. Crystal orientation imaging of crystalline grains in Si-steel
7. Martensite phase in ferritic steel (HUNS)
8. Kitchen knife
9. Japanese sword
10. Information relating to dislocation
11. Damascus steel knife
12. CT imaging of crystalline phase (ferrite and austenite)
13. Crystal defects in each crystalline grain
14. Solid-liquid phase fraction imaging during solidification of lead-bismuth eutectic


1. Welded steel plates

Published paper

H. Sato, T. Kamiyama and Y. Kiyanagi, A Rietveld-Type Analysis Code for Pulsed Neutron Bragg-Edge Transmission Imaging and Quantitative Evaluation of Texture and Microstructure of a Welded α-Iron Plate, Materials Transactions, Volume 52, Number 6 (2011) 1294-1302.

Data analysis method

RITS (Rietveld-type whole Bragg-edge neutron transmission spectrum fitting)

Visualized information

Neutron beamline

Neutron TOF-imaging detector

GEM (gas electron multiplier) type

2. Macro-strain imaging during tensile testing

Published paper

K. Iwase, H. Sato, S. Harjo, T. Kamiyama, T. Ito, S. Takata, K. Aizawa and Y. Kiyanagi, In situ lattice strain mapping during tensile loading using the neutron transmission and diffraction methods, Journal of Applied Crystallography, Volume 45, Part 1 (2012) 113-118.

Data analysis method

Single Bragg-edge profile fitting

Visualized information

Neutron beamline

J-PARC MLF BL19 "TAKUMI"

Neutron TOF-imaging detector

Li-6 glass scintillator pixel type

3. Martensite phase in ferritic steel

Published paper

H. Sato, T. Sato, Y. Shiota, T. Kamiyama, A. S. Tremsin, M. Ohnuma and Y. Kiyanagi, Relation between Vickers Hardness and Bragg-Edge Broadening in Quenched Steel Rods Observed by Pulsed Neutron Transmission Imaging, Materials Transactions, Volume 56, Number 8 (2015) 1147-1152.

Data analysis method

Single Bragg-edge profile fitting

Visualized information

Neutron beamline

J-PARC MLF BL10 "NOBORU"

Neutron TOF-imaging detector

MCP (micro channel plate) type

4. Strain tensor tomography in Al shrink-fit ring and plug

Published paper

H. Sato, Y. Shiota, T. Shinohara, T. Kamiyama, M. Ohnuma, M. Furusaka and Y. Kiyanagi, Development of the tensor CT algorithm for strain tomography using Bragg-edge neutron transmission, Physics Procedia, Volume 69 (2015) 349-357.

Data analysis method

Single Bragg-edge profile fitting
Tensor tomography

Visualized information

Tomographic macro-strain image

Neutron beamline

J-PARC MLF BL10 "NOBORU"

Neutron TOF-imaging detector

GEM (gas electron multiplier) type

5. Lithium-ion battery

Published paper

T. Kamiyama, Y. Narita, H. Sato, M. Ohnuma and Y. Kiyanagi, Structural Change of Carbon Anode in a Lithium-ion Battery Product Associated with Charging Process Observed by Neutron Transmission Bragg-edge Imaging, Physics Procedia, Volume 88 (2017) 27-33.

Data analysis method

Single Bragg-edge profile fitting

Visualized information

Average value of distribution of crystal lattice plane spacing

Neutron beamline

Neutron TOF-imaging detector

GEM (gas electron multiplier) type

6. Crystal orientation imaging of crystalline grains in Si-steel

Published paper

H. Sato, Y. Shiota, S. Morooka, Y. Todaka, N. Adachi, S. Sadamatsu, K. Oikawa, M. Harada, S. Y. Zhang, Y. H. Su, T. Kamiyama, M. Ohnuma, M. Furusaka, T. Shinohara and Y. Kiyanagi, Inverse pole figure mapping of bulk crystalline grains in a polycrystalline steel plate by pulsed neutron Bragg-dip transmission imaging, Journal of Applied Crystallography, Volume 50, Part 6 (2017) 1601-1610.

Data analysis method

Multiple Bragg-dips wavelength pattern analysis

Visualized information

Neutron beamline

J-PARC MLF BL10 "NOBORU"

Neutron TOF-imaging detector

GEM (gas electron multiplier) type

7. Martensite phase in ferritic steel (HUNS)

Published paper

H. Sato, T. Sasaki, T. Moriya, H. Ishikawa, T. Kamiyama and M. Furusaka, High wavelength-resolution Bragg-edge/dip transmission imaging instrument with a supermirror guide-tube coupled to a decoupled thermal-neutron moderator at Hokkaido University Neutron Source, Physica B: Condensed Matter, Volume 551 (2018) 452-459.

Data analysis method

Single Bragg-edge profile fitting

Visualized information

Neutron beamline

Neutron TOF-imaging detector

GEM (gas electron multiplier) type

8. Kitchen knife

Published paper

H. Sato, K. Mochiki, K. Tanaka, K. Ishizuka, H. Ishikawa, T. Kamiyama and Y. Kiyanagi, Bragg-edge neutron transmission spectrum analysis using a high-speed-camera-type time-of-flight neutron imaging detector, Nuclear Instruments and Methods in Physics Research Section A, Volume 943 (2019) 162501.

Data analysis method

RITS (Rietveld-type whole Bragg-edge neutron transmission spectrum fitting) 1
RITS (Rietveld-type whole Bragg-edge neutron transmission spectrum fitting) 2

Visualized information

Neutron beamline

Neutron TOF-imaging detector

High-speed camera type

9. Japanese sword

Published paper

H. Sato, Y. Kiyanagi, K. Oikawa, K. Ohmae, A. H. Pham, K. Watanabe, Y. Matsumoto, T. Shinohara, T. Kai, S. Harjo, M. Ohnuma, S. Morito, T. Ohba, A. Uritani and M. Itoh, Crystallographic microstructure study of a Japanese sword made by Noritsuna in the Muromachi period by pulsed neutron Bragg-edge transmission imaging, Materials Research Proceedings, Volume 15 (2020) 214-220.

Data analysis method

Single Bragg-edge profile fitting
RITS (Rietveld-type whole Bragg-edge neutron transmission spectrum fitting)

Visualized information

Neutron beamline

J-PARC MLF BL22 "RADEN"

Neutron TOF-imaging detector

GEM (gas electron multiplier) type

10. Information relating to dislocation

Published paper

H. Sato, K. Iwase, T. Kamiyama and Y. Kiyanagi, Simultaneous broadening analysis of multiple Bragg edges observed by wavelength-resolved neutron transmission imaging of deformed low-carbon ferritic steel, ISIJ International, Volume 60, Number 6 (2020) 1254-1263.

Data analysis method

Simultaneous multiple Bragg-edges profile fitting

Visualized information

Information relating to dislocation

Neutron beamline

J-PARC MLF BL19 "TAKUMI"

Neutron TOF-imaging detector

Li-6 glass scintillator pixel type

11. Damascus steel knife

Published paper

S. M. Cho, J. Y. Kim, T. J. Kim, H. Sato, I. W. Huh and N. C. Cho, Neutron imaging for metallurgical characteristics of iron products manufactured with ancient Korean iron making techniques, Nuclear Engineering and Technology, Volume 53, Issue 5 (2021) 1619-1625.

Data analysis method

Single Bragg-edge profile fitting
RITS (Rietveld-type whole Bragg-edge neutron transmission spectrum fitting)

Visualized information

Neutron beamline

Neutron TOF-imaging detector

GEM (gas electron multiplier) type

12. CT imaging of crystalline phase (ferrite and austenite)

Published paper

H. Sato, M. Sato, Y. H. Su, T. Shinohara and T. Kamiyama, Improvement of Bragg-edge neutron transmission imaging for evaluating the crystalline phase volume fraction in steel composed of ferrite and austenite, ISIJ International, Volume 61, Number 5 (2021) 1584-1593.

Data analysis method

RITS (Rietveld-type whole Bragg-edge neutron transmission spectrum fitting) 1
RITS (Rietveld-type whole Bragg-edge neutron transmission spectrum fitting) 2
RITS (Rietveld-type whole Bragg-edge neutron transmission spectrum fitting) 3

Visualized information

Austenite phase volume fraction in ferritic steel

Neutron beamline

J-PARC MLF BL22 "RADEN"
HUNS

Neutron TOF-imaging detector

GEM (gas electron multiplier) type

13. Crystal defects in each crystalline grain

Published paper

Y. Sakurai, H. Sato, N. Adachi, S. Morooka, Y. Todaka and T. Kamiyama, Analysis and Mapping of Detailed Inner Information of Crystalline Grain by Wavelength-Resolved Neutron Transmission Imaging with Individual Bragg-Dip Profile-Fitting Analysis, Applied Sciences, Volume 11, Issue 11 (2021) 5219.

Data analysis method

Individual Bragg-dip profile fitting

Visualized information

Neutron beamline

J-PARC MLF BL10 "NOBORU"

Neutron TOF-imaging detector

GEM (gas electron multiplier) type

14. Solid-liquid phase fraction imaging during solidification of lead-bismuth eutectic


Imaging of characteristics of neutron transmission spectrum by unsupervised machine learning (PCA)

Imaging of solid-liquid phase fraction by supervised machine learning (KNN)

Published paper

T. Kamiyama, K. Hirano, H. Sato, K. Ono, Y. Suzuki, D. Ito and Y. Saito, Application of machine learning methods to neutron transmission spectroscopic imaging for solid-liquid phase fraction analysis, Applied Sciences, Volume 11, Issue 13 (2021) 5988.

Data analysis method

Unsupervised machine learning (PCA)
Supervised machine learning (KNN)

Visualized information

Neutron beamline

J-PARC MLF BL22 "RADEN"

Neutron TOF-imaging detector

GEM (gas electron multiplier) type

Return to Top