Real-time observation of hydrogen absorption by LaNi5 with quasi-dynamic neutron tomography

Bradley M. Wood; Kyungmin Ham; Daniel S. Hussey; David L. Jacobson; Adel Faridani; Anders Kaestner; John J. Vajo; Ping Liu; Tabbetha A. Dobbins; Leslie G. Butler

doi:10.1016/j.nimb.2013.10.052

Real-time observation of hydrogen absorption by LaNi₅ with quasi-dynamic neutron tomography

Bradley M. Wood, Kyungmin Ham, Daniel S. Hussey, David L. Jacobson, Adel Faridani, Anders Kaestner, John J. Vajo, Ping Liu, Tabbetha A. Dobbins, Leslie G. Butler

Physics

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The uptake of hydrogen by lanthanum pentanickel (LaNi₅) to form lanthanum nickel hydride (LaNi₅H₆) is followed with three-dimensional imaging by neutron tomography. The hydrogen absorption process is slower than the time needed for acquiring a single radiograph, about 10 s, but fast relative to the time to acquire a fully-sampled tomographic data set, about 6000 s. A novel data acquisition scheme is used with angles based upon the Greek Golden ratio, a scheme which allows considerable flexibility in post-acquisition tomography reconstruction. Even with tomographic undersampling, the granular structure for the conversion of LaNi₅ particles to LaNi₅H₆ particles is observed and visually tracked in 3D. Over the course of five sequential hydrogen uptake runs with various initial hydrogen pressures, some grains are repeatedly observed.

Original language	English (US)
Pages (from-to)	95-101
Number of pages	7
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	324
DOIs	https://doi.org/10.1016/j.nimb.2013.10.052
State	Published - Apr 1 2014

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

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Wood, B. M., Ham, K., Hussey, D. S., Jacobson, D. L., Faridani, A., Kaestner, A., Vajo, J. J., Liu, P., Dobbins, T. A., & Butler, L. G. (2014). Real-time observation of hydrogen absorption by LaNi₅ with quasi-dynamic neutron tomography. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 324, 95-101. https://doi.org/10.1016/j.nimb.2013.10.052

Wood, Bradley M. ; Ham, Kyungmin ; Hussey, Daniel S. ; Jacobson, David L. ; Faridani, Adel ; Kaestner, Anders ; Vajo, John J. ; Liu, Ping ; Dobbins, Tabbetha A. ; Butler, Leslie G. / Real-time observation of hydrogen absorption by LaNi₅ with quasi-dynamic neutron tomography. In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2014 ; Vol. 324. pp. 95-101.

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title = "Real-time observation of hydrogen absorption by LaNi5 with quasi-dynamic neutron tomography",

abstract = "The uptake of hydrogen by lanthanum pentanickel (LaNi5) to form lanthanum nickel hydride (LaNi5H6) is followed with three-dimensional imaging by neutron tomography. The hydrogen absorption process is slower than the time needed for acquiring a single radiograph, about 10 s, but fast relative to the time to acquire a fully-sampled tomographic data set, about 6000 s. A novel data acquisition scheme is used with angles based upon the Greek Golden ratio, a scheme which allows considerable flexibility in post-acquisition tomography reconstruction. Even with tomographic undersampling, the granular structure for the conversion of LaNi5 particles to LaNi5H6 particles is observed and visually tracked in 3D. Over the course of five sequential hydrogen uptake runs with various initial hydrogen pressures, some grains are repeatedly observed.",

author = "Wood, {Bradley M.} and Kyungmin Ham and Hussey, {Daniel S.} and Jacobson, {David L.} and Adel Faridani and Anders Kaestner and Vajo, {John J.} and Ping Liu and Dobbins, {Tabbetha A.} and Butler, {Leslie G.}",

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doi = "10.1016/j.nimb.2013.10.052",

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Wood, BM, Ham, K, Hussey, DS, Jacobson, DL, Faridani, A, Kaestner, A, Vajo, JJ, Liu, P, Dobbins, TA & Butler, LG 2014, 'Real-time observation of hydrogen absorption by LaNi₅ with quasi-dynamic neutron tomography', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 324, pp. 95-101. https://doi.org/10.1016/j.nimb.2013.10.052

Real-time observation of hydrogen absorption by LaNi₅ with quasi-dynamic neutron tomography. / Wood, Bradley M.; Ham, Kyungmin; Hussey, Daniel S.; Jacobson, David L.; Faridani, Adel; Kaestner, Anders; Vajo, John J.; Liu, Ping; Dobbins, Tabbetha A.; Butler, Leslie G.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 324, 01.04.2014, p. 95-101.

Research output: Contribution to journal › Article › peer-review

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AU - Kaestner, Anders

AU - Vajo, John J.

AU - Liu, Ping

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AU - Butler, Leslie G.

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AB - The uptake of hydrogen by lanthanum pentanickel (LaNi5) to form lanthanum nickel hydride (LaNi5H6) is followed with three-dimensional imaging by neutron tomography. The hydrogen absorption process is slower than the time needed for acquiring a single radiograph, about 10 s, but fast relative to the time to acquire a fully-sampled tomographic data set, about 6000 s. A novel data acquisition scheme is used with angles based upon the Greek Golden ratio, a scheme which allows considerable flexibility in post-acquisition tomography reconstruction. Even with tomographic undersampling, the granular structure for the conversion of LaNi5 particles to LaNi5H6 particles is observed and visually tracked in 3D. Over the course of five sequential hydrogen uptake runs with various initial hydrogen pressures, some grains are repeatedly observed.

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