Actinides in fecal ash
Actinides in fecal ash (Bq/sample)
Total alpha emitters in nasal mucus (Bq/sample)
The maximum number of participants for the inter-laboratory comparison is 40.
- 3 samples of approx. 2.0 grams of ash each (25ACTSA, 25ACTSB, 25ACTSC)
- 1 sample is without overload.
- 2 other samples are overloaded with plutonium and/or Trans plutonium and uranium elements.
These overloads are achieved by adding dilutions of certified radioactive standards
A sample actually contaminated by an industrial compound may be offered.
The total activity of each sample in alpha emitters of artificial origin is less than 5.00 E-01 Bq.
This presentation provides a general overview of actinide intercomparison in fecal ash. The information given here is for guidance only. For official, up-to-date data, please refer to the current year’s interlaboratory comparison campaign plan.
The laboratory carries out biological and radiotoxicological monitoring of ORANO staff and intervening companies working at the ORANO La Hague establishment, both for systematic monitoring and in case of suspected contamination incident.
This establishment specializes in the treatment of irradiated fuels discharged from civil reactors or research from French (EDF) or foreign clients (Japan, Germany, Switzerland and Australia) for their recycling in the form of MOX.
Throughout the year, nearly 6'500 people are monitored in the laboratory and nearly 45,000 examination requests are recorded each year. The laboratory has various alpha spectrometry facilities on samples after radiochemical preparation of alpha, beta counters, liquid scintillation counting equipment, but also gamma whole body and X gamma pulmonary spectrometry facilities, thus allowing, to guarantee on a continuous day an internal dosimetry evaluation of the best level and as soon as possible.
