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Analytical Suite Page

https://geochem.nrcan.gc.ca/cdogs/content/sui/sui00436_e.htm

Nov 14, 2019 .... A detailed description of the method is provided by Boulanger et al. (1975). In brief, a 1 gram sample is weighed into a 7 dram polyethylene vial, capped and sealed. The irradiation is provided by the Slowpoke reactor with an operating flux of 5x10** 11 neutrons/sq cm/sec. The samples are pneumatically transferred from an automatic loader to the reactor, where each

Analytical Suite Page

https://geochem.nrcan.gc.ca/cdogs/content/sui/sui00437_e.htm

Nov 14, 2019 ... counting. A detailed description of the method is provided by Boulanger et al. (1975). In brief, a 1 gram sample was weighed into a 7 dram polyethylene vial, capped and sealed. The irradiation was provided by the Slowpoke reactor with an operating flux of 5** 10 neutrons/sq.cm./sec. The samples were pneumatically transferred from an automatic loader to the reactor

Frequently Asked Questions Regarding Food Irradiation

https://www.canada.ca/en/health-canada/services/food-nutrition/food-safety/food-irradiation/frequently-asked-questions-regarding-food-irradiation-1.html

Jun 9, 2016 ...Frequently Asked Questions Regarding Food Irradiation 1. What is food irradiation? Food irradiation is the treatment of food with a type of radiation energy known as ionizing radiation. Three different types of ionizing radiation can be used on foods sold in Canada; gamma rays, electron beam and x-rays. Ionizing radiation at the levels used for food

Analytical Suite Page

https://geochem.nrcan.gc.ca/cdogs/content/sui/sui00025_e.htm

Nov 14, 2019 ..., high detection limits General Methodology: Depending on sample density, 3 to 7 g of the sample were capped in 7 ml plastic containers. Samples were irradiated at McMaster University's 3 monitor reactor. A batch irradiation consisted of 21 samples and a standard (GTS-1). The delay between irradiation and counting was 5 to 8 days. A single 1 hour count (3 600 s

Analytical Suite Page

https://geochem.nrcan.gc.ca/cdogs/content/sui/sui00419_e.htm

Nov 14, 2019 ... into a 7 dram polyethylene vial, capped and sealed. The irradiation is provided by the Slowpoke reactor with an operating flux of 10** 12 neutrons/sq cm/sec. The samples are pneumatically transferred from an automatic loader to the reactor, where each sample is irradiated for 60 seconds. After irradiation, the sample is again transferred pneumatically

Food Irradiation - Canadian Food Inspection Agency

https://www.inspection.gc.ca/food-safety-for-industry/information-for-consumers/fact-sheets-and-infographics/irradiation/eng/1332358607968/1332358680017

Oct 31, 2016 ...Food Irradiation What is food irradiation? Food irradiation is the treatment of food with a type of radiation energy known as ionizing radiation. Three different types of radiation are allowed: Gamma rays, X-rays and electron beam radiation. Ionizing radiation at the levels used for food irradiation contains enough energy to kill bacteria, molds, parasites

Keyword Page

https://geochem.nrcan.gc.ca/cdogs/content/kwd/kwd040135_e.htm

Nov 14, 2019 ... (low-energy), epithermal (moderate energy) and fast (high energy). A major experimental parameter is whether nuclear decay products (gamma rays or particles) are measured during neutron irradiation (prompt gamma, PGNAA), or at some time after irradiation (delayed gamma, DGNAA). If NAA is conducted directly on irradiated samples it is termed Instrumental Neutron

Analytical Suite Page

https://geochem.nrcan.gc.ca/cdogs/content/sui/sui00024_e.htm

Nov 14, 2019 ..., low detection limits General Methodology: Depending on sample density, 3 to 7 g of the sample were capped in 7 ml plastic containers. Samples were irradiated at McMaster University's 3 monitor reactor. A batch irradiation consisted of 21 samples and a standard (GTS-1). The delay between irradiation and counting was 5 to 8 days. A single 2 hour count (7 200 s

Analytical Suite Page

https://geochem.nrcan.gc.ca/cdogs/content/sui/sui00127_e.htm

Nov 14, 2019 ... μm) were capped in 7 ml plastic containers. The samples (weight = 5 ± 2 g) were irradiated at McMaster University's 3 monitor reactor. A batch irradiation consisted of 21 samples and the delay between irradiation and counting was 5 to 8 days. A single 1 hour count (3600 s) was performed on each sample by a germanium detector (EGEG-Ortec). The proposed

Analytical Suite Page

https://geochem.nrcan.gc.ca/cdogs/content/sui/sui00075_e.htm

Nov 14, 2019 ...: Uranium was determined using a neutron activation method with delayed neutron counting. A detailed description of the method is provided by Boulanger et al. (1975). In brief, a 1 gram sample is weighed into a 7 dram polyethylene vial, capped and sealed. The irradiation is provided by the Slowpoke reactor with an operating flux of 10** 12 neutrons/sq cm/sec

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