Plugging Indicator - Measurement of Low Impurity Concentrations at a Constant Orifice Temperature
Plugging indicators have been used extensively to measure impurity concentrations in liquid sodium systems. Simplicity of design, installation and operation is the most commonly quoted advantage. If there is no problem when the plugging temperature is important, it is more difficult to measure a plugging temperature when the impurity concentration is low. Then, the plugging temperature is often reported as inferior to 110 °C. This measurement is sufficient for the technicien. Sometimes, however, a more precise indication is required in cases where the implantation either an oxygenmeter or a hydrogenmeter is impossible. We propose a use for plugging indicator which satisfies this type of requirement.
KeywordsImpurity Concentration Crystal Growth Rate Sodium Hydride Orifice Temperature Sodium Oxide
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- 1.R. F. Strickland-Constable, “Kinetics and Mechanisms of crystallization” Academic Press 1968.Google Scholar
- 2.C. C. McPheeters, J. C. Biery, Nuclear Applications 6, 573–581, 1979.Google Scholar
- 3.I. Yamamoto, S. Sumida, N. Izumi, Sagawia, J. of Nuclear Science & Technology 16, (6) 383–389, 1979.Google Scholar
- 4.D. Feron “Mechanisms of sodium purification by cold traps” Thesis of Doctor-Ingineer - Institut du Genie Chimique Toulouse (France). 28th May 1979.Google Scholar
- 5.J. D. Noden RD/B/N 2500, 1972.Google Scholar
- 6.A. C. Whittingham, J. Nuclear Materials 60, p. 199, 191, 197.Google Scholar