Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8209360 | Applied Radiation and Isotopes | 2016 | 5 Pages |
Abstract
The graphene films have been used to prepare sources containing some electron capture radionuclides (109Cd, 55Fe, 139Ce) with an activity in the order of 3 kBq. The samples have been measured to test the attainable low energy electron efficiency and the energy resolution of Auger and conversion electrons by 4Ï (electron capture)-γ coincidence measurements. The 4Ï (electron capture)-γ coincidence setup includes a pressurized proportional counter and a NaI(Tl) detector. Tests with different pressures up to 1000 kPa were carried out. All these tests show similar values in both parameters (efficiency and resolution) as those obtained by using the conventional metallized films without the drawback of the high percentage of broken films.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Miguel Roteta, Rodolfo Fernández-MartÃnez, Marcos Mejuto, Isabel Rucandio,