Atomic Energy of Canada Limited

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: Neutron & Zirconium alloy. The organization has 4845 authors who have published 4826 publications receiving 102951 citations.

SELF AND SOLUTE DIFFUSION IN ZIRCONIUM. I. THE DIFFUSION OF $sup 60$Co IN $beta$ Zr.

Abstract: The diffusion coefficient of 60Co in the b.c.c. β phase of 99.99% pure polycrystalline zirconium has been measured over the temperature range of 920 to 1700°c. The Arrhenius plot of log D versus 1/T shows some evidence of positive curvature above 1600°c but below that it is strictly linear and can be represented by: Anomalies in the concentration profiles were noted in experiments at temperatures below 1200°c. An account of their origin is suggested.

Digital spectrum stabilizer for pulse analysing system

Abstract: A device is described which may be used generally for the stabilization of puise spectra in time or amplitude analysis. The device uses a digital technique to generate a correction voltage, which may be fed to any appropriate point in the counting system to correct for spectrum drift and instabilities. A mathematical analysis of the stabilizing properties is included together with practical experimental arrangements and results. (auth)

Single-pulse photoacoustic technique for measuring IR multiphoton absorption by polyatomic molecules.

Abstract: The single-pulse photoacoustic technique was used to measure cross sections for IR multiphoton absorption. A discussion of this technique and the applicable pressure range is given. The source of the signals from the microphone was identified. The first peak is proportional to the energy absorbed by the gas in the focal region, while the subsequently arriving signals correspond to a mixture of the signal from the entrance and exit volumes and the ringings of the microphone and the gas cell.