The Microbiology of Heavy Water in the HIFAR Reactor

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Description

The high flux research reactor HIFAR contains ten tons of heavy water which acts as moderator and primary coolant. Over an eighteen months period regular microbiological examinations have been carried out on samples of heavy water taken from various parts of the circuit. The heavy water circuit provides an interesting opportunity for the study of microorganisms because of the high isotopic purity (greater than 99.6 per cent.), and the high chemical purity of the heavy water in the reactor. Furthermore, during its passage through the reactor core the water and suspended bacteria are subjected to intense irradiation, the neutron flux … continued below

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8 pages : illustrations

Creation Information

Davis, P. S. & McPherson, G. G. June 1962.

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The high flux research reactor HIFAR contains ten tons of heavy water which acts as moderator and primary coolant. Over an eighteen months period regular microbiological examinations have been carried out on samples of heavy water taken from various parts of the circuit. The heavy water circuit provides an interesting opportunity for the study of microorganisms because of the high isotopic purity (greater than 99.6 per cent.), and the high chemical purity of the heavy water in the reactor. Furthermore, during its passage through the reactor core the water and suspended bacteria are subjected to intense irradiation, the neutron flux being approximately 10 14 neutrons cm-2 sec-1. The presence of bacteria in the heavy water circuit has been demonstrated and experimental results and methods used are discussed. Some evidence is presented to show that the ion—exchange resin bed contributes nutrients to support bacterial growth.

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8 pages : illustrations

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Digitized from microopaque cards (1).

Includes bibliographic references (page 3).

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  • SuDoc Number: Y 3.At 7:22/AAEC/E-90
  • Report No.: AAEC/E-90
  • Accession or Local Control No: metadc1257430
  • Archival Resource Key: ark:/67531/metadc1257430

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TRAIL Microcard Collection

Imaged from microcard, these technical reports describe research performed for U.S. government agencies from the 1930s to the 1960s. The reports were provided by the Technical Report Archive and Image Library (TRAIL).

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  • June 1962

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  • June 18, 2021, 7:23 a.m.

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  • Dec. 22, 2022, 1:47 p.m.

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Davis, P. S. & McPherson, G. G. The Microbiology of Heavy Water in the HIFAR Reactor, report, June 1962; Lucas Heights, New South Wales, Australia. (https://digital.library.unt.edu/ark:/67531/metadc1257430/: accessed June 2, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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