Simple method for absolute activity measurement of 60Co source
β Scribed by Istvan Bikit; Tomas Nemes; Dusan Mrda
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 221 KB
- Volume
- 603
- Category
- Article
- ISSN
- 0168-9002
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The sum-peak method has been applied to determine the disintegration rates of two small [%o]Co sources (30 and 350 kBq) in lead contamers with several thicknesses (3, 6, 9, 15, 21, 27 and 33 mm) by usmg a NaI(T1) detector. The experimental results showed that the sum-peak method was perfectly effect
The absolute activity of z'5U contained in a sample was measured utilizing a sum-coincidence circuit which selects only the a-particles emitted simultaneously with the 143 and 186 keV gamma radiations from the 23'Th (product nucleus). The a-particles were detected by means of a new type of a gas sci