Calibrated Solid Sources
Safe, calibrated solid sealed sources are fabricated by depositing a license exempt quantity of activity in the well of a 2-inch diameter (50mm) by 1/8-inch thick (3mm) plastic disk. After drying, the well is filled with an epoxy material; sealing the radioactivity inside the source. Calibrations are ±5% and are performed using a high-purity germanium detector for which peak efficiencies have been established using a NIST traceable standard. Each disk is identified by radionuclide, amount of activity, serial number and calibration date. The words "Caution - Radioactive Material" appear on the label of each source.
Sources are available in stock at an activity of ~1.0 microcurie. They may be ordered individually or as a set. Sources are available at other activities within the ranges listed below for a nominal charge. When ordering, please indicate any special activity requirements.
Solid Calibration Point Sources
2" diameter, 0.125" thick acrylic disks. Calibrated gamma standards. License exempt.
License exempt in the United States.
International customers must check their local regulations for exemption limits.
| Model No. | Nuclide | T1/2 | Activity ±5% |
| Ba-133-2 | Barium-133 | 10.5 y | 0.1 - 10 µCi |
| Cd-109-2 | Cadmium-109 | 464 d | .1 - 10 µCi |
| Co-57-2 | Cobalt-57 | 271 d | 0.1 - 25 µCi |
| Co-60-2 | Cobalt-60 | 5.27 y | 0.1 - 1 µCi |
| Cs-137-2 | Cesium-137 | 30.1 y | 0.1 - 10 µCi |
| Mn-54-2 | Manganese-54 | 312 d | 0.1 - 10 µCi |
| Na-22-2 | Sodium-22 | 2.60 y | 0.1 - 10 µCi |
| Zn-65-2 | Zinc-65 | 244 d | 0.1 - 10 µCi |
| S-13-2 | Set of 8 of above sources | 0.1 - 1 µCi |
Custom sources containing the above nuclides at activities outside of the ranges listed above and not exceeding exempt quantities may be quoted upon request.
Note to our International Customers: If you would like a quote on this product, please contact your Local Sales Office for assistance. |
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| Models | Description | |
| Ba-133-2 | Barium 133 Solid Calibration Point Source | |
| Cd-109-2 | Cadmium 109 Solid Calibration Point Source | |
| Cs-137-2 | Cesium 137 Solid Calibration Point Source | |
| Co-57-2 | Cobalt 57 Solid Calibration Point Source | |
| Co-60-2 | Cobalt 60 Solid Calibration Point Source | |
| Mn-54-2 | Manganese 54 Solid Calibration Point Source | |
| S-13-2 | Set of 8 Solid Calibration Point Sources | |
| Na-22-2 | Sodium 22 Solid Calibration Point Source | |
| Zn-65-2 | Zinc 65 Solid Calibration Point Source | |
QUESTIONS? 
In the United States
(800) 243-3955
Outside United States:
(203) 238-2351
