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Title: Identification of lithium hydride and its hydrolysis products with neutron imaging

In this study, lithium hydride (LiH) and its hydrolysis products were investigated non-destructively with neutron radiography and neutron computed tomography. Relative neutron transmission intensities (I/I 0) were measured for LiOH, Li 2O and LiH, and their linear attenuation coefficients calculated from this data. We show that 7Li is necessary for creating large differences in I/I 0 for facile identification of these compounds. The thermal decomposition of LiOH to Li 2O was also observed with neutron radiography. Computed tomography shows that the samples were fairly homogeneous, with very few macroscopic defects. Lastly, the results shown here demonstrate the feasibility of observing LiH hydrolysis with neutron imaging techniques in real time.
Authors:
 [1] ;  [2] ;  [2] ;  [1] ;  [1] ;  [3] ;  [3] ;  [1] ;  [1]
  1. Y-12 National Security Complex, Oak Ridge, TN (United States)
  2. AWE Plc, Berkshire (United Kingdom)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Report Number(s):
MS/GAR-161206
Journal ID: ISSN 0022-3115; TRN: US1701091
Grant/Contract Number:
NA0001942
Type:
Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 485; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Research Org:
Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Contributing Orgs:
Y-12 Plant Directed Research, Development and Demonstration Program; Oak Ridge National Laboratory by the Scientific User Facilities Division, Office of Basic Energy Sciences
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; lithium hydride; hydrolysis; neutron imaging
OSTI Identifier:
1347522
Alternate Identifier(s):
OSTI ID: 1411820

Garlea, Elena, King, Martin O., Galloway, E. C., Boyd, T. L., Smyrl, N. R., Bilheux, H. Z., Santodonato, L. J., Morrell, J. S., and Leckey, J. H.. Identification of lithium hydride and its hydrolysis products with neutron imaging. United States: N. p., Web. doi:10.1016/j.jnucmat.2016.12.012.
Garlea, Elena, King, Martin O., Galloway, E. C., Boyd, T. L., Smyrl, N. R., Bilheux, H. Z., Santodonato, L. J., Morrell, J. S., & Leckey, J. H.. Identification of lithium hydride and its hydrolysis products with neutron imaging. United States. doi:10.1016/j.jnucmat.2016.12.012.
Garlea, Elena, King, Martin O., Galloway, E. C., Boyd, T. L., Smyrl, N. R., Bilheux, H. Z., Santodonato, L. J., Morrell, J. S., and Leckey, J. H.. 2016. "Identification of lithium hydride and its hydrolysis products with neutron imaging". United States. doi:10.1016/j.jnucmat.2016.12.012. https://www.osti.gov/servlets/purl/1347522.
@article{osti_1347522,
title = {Identification of lithium hydride and its hydrolysis products with neutron imaging},
author = {Garlea, Elena and King, Martin O. and Galloway, E. C. and Boyd, T. L. and Smyrl, N. R. and Bilheux, H. Z. and Santodonato, L. J. and Morrell, J. S. and Leckey, J. H.},
abstractNote = {In this study, lithium hydride (LiH) and its hydrolysis products were investigated non-destructively with neutron radiography and neutron computed tomography. Relative neutron transmission intensities (I/I0) were measured for LiOH, Li2O and LiH, and their linear attenuation coefficients calculated from this data. We show that 7Li is necessary for creating large differences in I/I0 for facile identification of these compounds. The thermal decomposition of LiOH to Li2O was also observed with neutron radiography. Computed tomography shows that the samples were fairly homogeneous, with very few macroscopic defects. Lastly, the results shown here demonstrate the feasibility of observing LiH hydrolysis with neutron imaging techniques in real time.},
doi = {10.1016/j.jnucmat.2016.12.012},
journal = {Journal of Nuclear Materials},
number = C,
volume = 485,
place = {United States},
year = {2016},
month = {12}
}