Document Detail

Experimental electron beam irradiation of food and the induction of radioactivity.
MedLine Citation:
PMID:  1325418     Owner:  NLM     Status:  MEDLINE    
Samples of chicken, prawns, cheeses and spices were irradiated on the Harwell electron linear accelerator HELIOS at 20 MeV to assess mechanisms for the induction of radioactivity. The induced radioactivity was measured using a lead shielded Ge(Li) gamma-ray spectrometer, and the results were compared with activities calculated on the basis of photoneutron and photoproton reactions induced by real and virtual photons. In general, there was good agreement. Bounds were also placed on the induction of radioactivity by capture of neutrons produced in the food samples themselves. Further, the data were used to assess the effects of a gross malfunction of an electron beam irradiation facility; after 1 day, the specific activity of food samples irradiated to 10 kGy at 20 MeV was approximately 0.01 Bq g-1. In addition, food samples were also irradiated at 10 MeV, and irradiated and control samples were analysed for microbiological burden. Reductions in the microbiological burden of the food samples by factors consistent with those found in previous measurements were found.
D J Findlay; T V Parsons; M R Sene
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of radiation applications and instrumentation. Part A, Applied radiation and isotopes     Volume:  43     ISSN:  0883-2889     ISO Abbreviation:  Int J Rad Appl Instrum A     Publication Date:  1992 May 
Date Detail:
Created Date:  1992-10-07     Completed Date:  1992-10-07     Revised Date:  2009-06-04    
Medline Journal Info:
Nlm Unique ID:  8611097     Medline TA:  Int J Rad Appl Instrum A     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  567-75     Citation Subset:  IM    
Harwell Laboratory, AEA Technology, Harwell, Oxfordshire, England.
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MeSH Terms
Food Irradiation*
Food Microbiology
Particle Accelerators
Erratum In:
Int J Rad Appl Instrum [A] 1992 Jul;43(7):955

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