DETERMINATION OF CAW MILK RADIOACTIVITY FROM BANAT COUNTY

Milk, as well as any other food, has naturally a radioactive content and, as a result, its consumption represents, through internal radiation, a considerable share of population radiation. Changing milk radioactivity can be done either by increasing natural radioactive element content, or through artificial diversifying and commercial display of the finite produce. Taking into account the above, we aim at contributing the database concerning the radioactive content of cow milk in the Banat area.To do so, we sampled cow milk in the areals of Caraş-Severin and Timiş from Banat counties, between 2005 and 2006. After preliminary processing, these samples were assessed from the point of view of their radioactivity, in accordance with present Romanian standards [1, 2, 4]. Measurements were carried out on a FHT 1100 numbering ensemble with proportional counter with gas circulation with a relative efficiency of 26%, for alpha radio-nuclides and 42 % beta radio-nuclides. The average of the chemical yields for these methods is 83%. Experimental results are shown in Table 1. Comparing experimental results with data cited in literature we can say that they correspond to the average values worldwide, as they range within typical variation limits [3]