Institut Armand-Frappier

Applied Microbiology Research Center, Institut Armand-Frappier, University of Quebec, 531, boulevard des Prairies, Laval, Quebec H7V 1B7, Canada... 

The author is very grateful to Dr. Andr6e G. Roberge and Dr. Dieter Kluepfel, Institut Armand-Frappier, for their encouragement and financial support for this study. He is also very thankful to the anonymous reviewers for their constructive suggestions to improve the presentation of this paper. 

Centre de Microbiologie Applique, Universite" du Quebec, Institut Armand-Frappier, 531, Boulevard des Prairies, C.P. 100, Laval-des-Rapides, Laval, Quebec G1K 7P4, Canada... 

Irradiation of the samples was performed at the Institut Armand-Frappier (IAF). Four irradiators with different dose rates were used. In all instances, Cobalt-60 ( Co, half-life 5.26 years, 1.25 MeV yray photon) was used as the gamma ray source. The GammaCell I, n, HI and the Calibrator emit y rays at 107,350,700 and 3000 krad/h respectively. At the end of the experimental runs, the 107 and 350 krad/h dose rates of the GammaCell I and n were down to 85 and 265 krad/h respectively, due to the Co half-life. The calibrator was kept constant at 3000 krad/h. The exact value of the various dose rates was constantly monitored during the experiments. 

Centre de recherche en medecine comparee Institut Armand-Frappier Universile de Quebec 53J, boulevard des Prairies Ville de Laval, Quebec, Canada H7V IB7... 

The demonstration irradiator was an idea that Nordion had already tried out in Canada. It had pioneered the concept with its Mobile Cobalt-60 Irradiator back in the 1960s. Later, in the mid-1980s, Nordion had b un discussions about a shared food-irradiation facility with the Centre for Applied Research in Food Science, part of the Institut Armand-Frappier at the University du Quebec. The centre s mandate was to... 

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