These sources are in the category of control or calibration sources. Cesium-137 or cobalt-60 radioactive solution is coated on ceramics then placed in suitable capsules. Then tested for leakage according to ISO 9978 and national standard 11038. These sources are available in 500 nCi to 1600 nCi radioactivity

Application

Calibration of well logging equipment

Calibration of radiation protection devices

Calibration of radiation measuring devices

Calibration of gamma ray dosimeters