IN SITU OCEANIC Cs-137 SAMPLING TECHNIQUE,
Abstract
The use of inorganic ion exchangers, which are selective for cesium, and their application in ocean sampling have been adapted into an in situ pump/adsorber sampling technique. The new sampling system, which is capable of processing very large volumes of seawater to a maximum depth of 2000 meters, is described. The system was tested and evaluated during two ocean cruises, and the improvement in resolution possible by this ion-exchange method for Cs-137 determinations was demonstrated. The system will yield resolution of the order of 0.002 dpm/liters in Cs-137 concentration determinations for effective volumes sampled of 1000 liters. A range of Cs-137 concentration determinations from as low as 0.007 dpm/liters to a surface concentration value of 1.9 dpm/liters is cited. An evaluation of two inorganic ion exchangers, potassium hexacyanocobalt ferrate (KCFC) and ammonium hexacyanocobalt ferrate (NCFC), both of which were used in the pump/adsorber system, is presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 05, 1969
- Accession Number
- AD0690095
Entities
People
- Takeo H. Shirasawa
Organizations
- Naval Radiological Defense Laboratory