Beta Reference Standard Set * [ TYPE NO.: BS280 ]
Technical Data
Beta Reference Standard Set BS 280 consists of a set of FIVE uncalibrated Beta reference sources evaporated and sealed on 25mm dia x 5mm plastic disc covering FIVE photopeak energies with activity in the range of 0.1 to 0.4 micro curie. A reference chart for this is given below. These radioactive sources offered are from BRIT. This BS280 serves as an uncalibrated reference source set, for RC605A with Beta probe — wide end window GM. Detector and also for low background Beta counting system. The accuracy of these sources is in the range of +/-10%. All these disc sources are enclosed in a neatly polished wooden box .
| Isotope | Energy MeV | Nominal Activity | Half Life |
|---|---|---|---|
| Co-60 | 0.315 (99.74%) | 0.1-0.3 µci | 5.27 Years |
| Sr90 Yt-90 | 0.546 (100%) | 0.1-0.3 µci | 28.5 Years |
| Tl-204 | 0.770 (98%) | 0.1-0.3 µci | 4 Years |
| Pm-147 | 0.2245 (100%) | 0.1-0.3 µci | 2.62 Years |
| Dummy | – | – | – |
