Related Experiment Video
Updated: May 3, 2026

Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level
Published on: June 6, 2018
Activity standardization of ¹³⁴Cs and ¹³⁷Cs
Jana Sochorová1, Pavel Auerbach1
1Czech Metrology Institute, IIR, Radiová 1, 102 00 Praha 10, Czech Republic.
Abstract:
The paper presents the results from a primary standardization of (137)Cs using two independent methods - efficiency tracing using PC-NaI coincidence and the TDCR method. The nuclides (60)Co and (134)Cs were used as the tracers. Primary standardization of the (134)Cs is also discussed. The efficiency extrapolation was carried out by measuring samples of varying mass and using the wet extrapolation method. The results obtained are in good agreement; the differences did not exceed 0.5%. The advantages, pitfalls and also possibilities for improvement of the procedures are discussed.
More Related Videos
Related Concept Videos
Radioactive Decay and Radiometric Dating
Nuclear Stability
To hold positively...
Radioactivity and Nuclear Equations
A nuclide of an element has a specific number of protons and...
Atomic Absorption Spectroscopy: Lab
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing...
Isotopes
An element's atomic mass, or weight,...
Atomic Emission Spectroscopy: Overview

