Gamma Reference Standard Set [ TYPE : GS 290 ]
Technical Data
GS290 consists of a set of FIVE/SIX uncalibrated Gamma reference sources evaporated and sealed on 25mm dia x 5mm plastic disc covering ranging from 100KeV upto 1.33MeV energies with activity in the range of 2 to 5 micro curie. A reference chart for this is given below. These radioactive sources offered are from BRIT. This serves as an uncalibrated (for activity) reference set for use with GR 611M & 611 & Gamma ray spectroscopy system with MCA. This set can be used for energy calibration purpose. 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-57 | 0.123 | 2-5 µci | 273 Days |
| Ba-133 | 0.36 (Main) | 2-5 µci | 7.5 Years |
| Na-22 | 0.511; 1.280 | 2-5 µci | 2.6 Years |
| Cs-137 | 0.662) | 2-5 µci | 30 Years |
| Co-60 | 1.17; 1.33 | 2-5 µci | 5.3 Years |
