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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1537

Title: Preparation of solid water-equivalent radioactive standards
Authors: Morris, WM
Simpson, BRS
Keywords: Super absorbent polymers
Water-equivalent standards
Radioactive volume standards
Cross-linked polyacrylate
Inorganic chemistry
Nuclear sciences
Issue Date: Feb-2004
Publisher: Pergamon-Elsevier Science Ltd
Citation: Morris, WM and Simpson, BRS. 2004. Preparation of solid water-equivalent radioactive standards. Applied Radiation and Isotopes, vol. 60, 04 February, pp 557-560
Abstract: Radioactive water standards prepared in Marinelli beakers can pose a problem due to potential leakage that can both compromise the standard and present a safety hazard. These difficulties can be circumvented by solidifying the standard such that it remains fundamentally water-equivalent. This paper describes a procedure that avoids the need to irradiate the standard. This entails the use of a small quantity of a super absorbent polymer, namely lightly cross linked polyacrylate. The polymer granules are simply added to the radioactive solution and thoroughly mixed to achieve homogeneity during the solidification process. Extensive measurements have confirmed the solid standard to be both homogeneous and water-equivalent.
URI: http://hdl.handle.net/10204/1537
ISSN: 0969-8043
Appears in Collections:General science, engineering & technology

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