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Institution

Atomic Energy of Canada Limited

CompanyOttawa, Ontario, Canada
About: Atomic Energy of Canada Limited is a company organization based out in Ottawa, Ontario, Canada. It is known for research contribution in the topics: Zirconium alloy & Neutron. The organization has 4845 authors who have published 4826 publications receiving 102951 citations.


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Journal ArticleDOI
TL;DR: For example, at the Chalk River Nuclear Laboratories in Ontario helium concentrations in ground waters in a Precambrian monzonitic gneiss range from 1.5 × 10−7 to 8.7 × 10 −4ccSTP/gH2O with the 3He/4He ratios ranging from 2.3 × 103.

111 citations

Journal ArticleDOI
TL;DR: In this article, the size and structure of the damaged regions generated by the incident ions have been examined at both temperatures using transmission electron microscopy, and detailed evidence is presented which shows that damaged regions had a size which was dependent on the temperature of the specimen during bombardment and a structure which was amorphous and less dense than the crystalline matrix in which they were located.
Abstract: Of particular interest in the theory of radiation damage are the size and structure of the damaged regions produced in crystalline solids by fast particle irradiation. In the present work crystalline germanium at room temperature or at 30°K has been bombarded in a Siemens electron microscope with 100 kev oxygen ions emanating from oxide-coated emission filaments. The size and structure of the damaged regions generated by the incident ions have been examined at both temperatures using transmission electron microscopy. Detailed evidence is presented which shows that the damaged regions had a size which was dependent on the temperature of the specimen during bombardment and a structure which was amorphous and less dense than the crystalline matrix in which they were located. Further, as the ion dose was increased to 2 × 1015 ions cm−2 the entire surface region to a depth of ∼600 A was observed to undergo a gradual transition from a crystalline to an amorphous state. In terms of radiation damage mode...

110 citations

Journal ArticleDOI
TL;DR: In this article, the Bauschinger effect is defined as the response during the early stages of reverse flow and the reverse flow stress σ r tends to saturate before it begins to rise again, and the rearrangement of dislocation substructure is treated by employing a two-component composite model.

109 citations

Journal ArticleDOI
TL;DR: In this paper, a model for the over-all hydrogen distribution under the influence of a temperature gradient is proposed, which predicts that for hydrogen pickup on hot surface (as in a failure of a fuel-rod sheath) maximum hydriding will occur at some position displaced from the cold surface.

109 citations

Journal ArticleDOI
TL;DR: A theory of neutron diffraction in polycrystalline specimens of sulphur hexafluoride (SF6) and carbon tetrabromide (CBr4) was developed and applied in the interpretation of the neutron results as discussed by the authors.
Abstract: An investigation of the plastic phases of polycrystalline specimens of sulphur hexafluoride (SF6) and carbon tetrabromide (CBr4) by neutron elastic scattering and neutron diffraction experiments is reported. A theory of neutron diffraction in plastic crystals, which treats the Bragg scattering and the diffuse scattering from a unified point of view, is developed and applied in the interpretation of the neutron results. The Debye-Scherrer peaks are analysed, both by a cumulant expansion technique and a cubic harmonic analysis, to determine the crystal structures of the plastic phase which are found to be body-centred cubic (space group Im3m) for SF6 and face-centred cubic (space group Fm3m) for CBr4. The bond-orientation distribution function, f(Ω), has maxima in the directions for SF6 and in the directions for CBr4. Since, in both cases, f(Ω) is appreciably different from zero for all orientations, it is apparent that significant thermal reorientation takes place in both these crystals. The tr...

108 citations


Authors

Showing all 4845 results

NameH-indexPapersCitations
Henry P. Schwarcz7835120863
Jonathan N. Glickman7217224025
Andrej Atrens6941721741
See Leang Chin6746017181
Purnendu K. Dasgupta6250616779
John Katsaras552209263
Jing-Li Luo5543610963
Charles Gale5333110903
Sanjoy Banerjee522298880
Yoshio Takahashi504039801
Peter Sigmund4922011795
Michael P. Païdoussis461658825
Wei-Kan Chu464458616
A. G. W. Cameron4512310111
Erland M. Schulson442456966
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20221
20213
20205
20194
20185
20178