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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.


Papers
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Journal ArticleDOI
TL;DR: In this article, the terminal solubility of hydrogen in the α-phase of binary alloys of zirconium with niobium, titanium, hafnium, yttrium, indium, lead, antimony and oxygen was examined by means of hydrogen pressure-concentration isotherms above the eutectoid temperature and a dilatometric technique below.

84 citations

Journal ArticleDOI
TL;DR: Protection of X‐irradiated mice by bovine superoxide dismutase is enhanced when the enzyme is given intravenously both before and after the exposure, in a dose range where hematological damage is an important contributor to animal lethality.
Abstract: Abstract— Protection of X‐irradiated mice by bovine superoxide dismutase is enhanced when the enzyme is given intravenously both before and after the exposure. With the combined treatment, the LD50(30) dose is increased from 734 ± 8 to 1144 ± 15rad for a dose reduction factor of 1.56 ± 0.04. This protection occurs in a dose range where hematological damage is an important contributor to animal lethality. The proliferative capacity of bone marrow stem cells, X‐irradiated in air, is protected by exogenous superoxide dismutase. The enzyme increased the D0 from 105 ± 6 to 290 ± 34rad, an increase that represents 83% of the oxygen enhancement ratio of 3.3. In N2 and N2O, the D0 of the stem cells is 348 ± 50 and 327 ± 55 rad, respectively, and the enzyme does not significantly change these values.

84 citations

Journal ArticleDOI
TL;DR: In this paper, a steepest-descent evaluation of the Bothe-Landau integral yields general expressions for the spectrum, the most probable energy loss, and the halfwidth, without reference to a particular collision cross section.
Abstract: The energy loss spectrum of a beam of charged particles penetrating a layer of random material has been analyzed theoretically. A steepest-descent evaluation of the Bothe-Landau integral yields general expressions for the spectrum, the most probable energy loss, and the halfwidth, without reference to a particular collision cross section. The procedure has been tested against rigorous results for model cross sections as well as the Landau-Vavilov theory for free-Coulomb scattering. The most probable energy loss is found to be systematically smaller than the mean energy loss by an amount which is independent of foil thickness for not-too-thin foils. This peak shift turns out to be insensitive to the angle of emergence from the foil but sensitive to nonuniformities in foil thickness and to detector resolution. The influence of shell corrections on the spectrum has been discussed, and the peak shift has been evaluated explicitly for the Landau-Vavilov case, for moderately relativistic ions, for slow ions stopped in a free electron gas, and for heavy ions stopped by elastic collisions. A procedure has been outlined for determining stopping power and straggling from measured peak energy losses and halfwidths. Systematic errors may be present in current stopping power data, caused by the use of most probable instead of mean energy loss values. Estimated peak shifts compare well with recent experimental results.

84 citations

Journal ArticleDOI
TL;DR: An improved look-up table for film-boiling heat-transfer coefficients has been derived for steam-water flow inside vertical tubes as mentioned in this paper, which contains 77,234 filmboiling data points obtained from 36 sources.

84 citations

Journal ArticleDOI
TL;DR: In this article, the authors used the neutron powder profile refinement technique to determine the crystal structure of solid Br2 at 5, 80, 170 and 250 K and that of solid Cl2 at 22, 55, 100 and 160 K.
Abstract: The neutron powder profile refinement technique has been used to determine the crystal structure of solid Br2 at 5, 80, 170 and 250 K and that of solid Cl2 at 22, 55, 100 and 160 K. The results confirm that the structures of the two halogens are isomorphous, with space group Cmca at all temperatures. For both halogens the lattice parameters a and b increase monotonically with temperature, but the lattice parameter c decreases at the highest temperatures. The data were analysed assuming both isotropic and anisotropic thermal parameters. The intramolecular bond length and its orientation relative to the b-axis show little change with temperature. For Br2 at 5 K the bond length is 2·301(2) A while a = 6·5672(3), b = 4·4678(2), c = 8·6938(4) A. For Cl2 at 22 K the bond length is 1·994(2) A while a = 6·1453(2), b = 4·3954(1), c = 8·1537(2) A, where the errors quoted are those produced by the profile fitting program.

84 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