| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1879624 | Applied Radiation and Isotopes | 2008 | 5 Pages |
Abstract
NPL has developed a low-noise current amplifier/discriminator system for radionuclides that emit low-energy electrons and X-rays. The new beta amplifier is based on the low-noise Amptek A-250 operational amplifier. The design has been configured for optimum signal to noise ratio. The new amplifier is described and results obtained using primarily electron-capture decaying radionuclides are presented. The new amplifier gives rise to higher particle detection efficiency than the previously used Atomic Energy of Canada Limited-designed amplifier. This is shown by measurements of 54Mn and 65Zn. The counting plateaux are significantly longer and have reduced gradients.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
J.P. Sephton, L.C. Johansson, J.M. Williams,