Preparation of 65Zn and 134Cs sealed sources based on commercial organic and synthesized inorganic sorbents for calibration purposes of γ-detectors

The sealed source of Zn-65 was prepared by using permutit as a commercial organic resin in an anion form, while in case of the Cs-134, the sealed source was prepared by using the synthesized 12-molybdocerate(IV) gel as an inorganic exchanger in cation form. The batch technique was carried out for loading Zn-65 from 0.2 M HCl-60% acetone medium and for loading Cs-134 from 0.005 M HNO3 onto the appropriate exchanger. The sealed source material of Zn-65-permutit or Cs-134-12-molybdocerate(IV), about 100 mg, was placed inside the cavity of a holder capsule (artelone) and its activity was measured to be 56.61 +/- 2.59 kBq (1.53 +/- 0.07 mu Ci) for Zn-65 on 21 April 2008 and 1.48 +/- 0.089 kBq (0.04 +/- 0.0024 mu Ci) for Cs-134 on 5 May 2008. The self absorption was calculated by using artelone and compared with the same thickness of stainless steel capsule as the holder material. The quality control was performed on the prepared sealed sources. (C) 2009 Elsevier Ltd. All rights reserved.