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Standardization of 142Pr activity concentration.
1Turkish Atomic Energy Authority, Saraykoy Nuclear Research and Training Center (TAEK-SANAEM), Saray M., Atom Cd. No.27, Kazan, Ankara, Turkey.
Summary
Praseodymium-142 (142Pr) was produced for brachytherapy. Standardization using multiple methods confirmed consistent activity measurements, with CIEMAT/NIST tracing offering the lowest uncertainty.
Area of Science:
- Nuclear Physics
- Radiochemistry
- Medical Physics
Background:
- 142Pr is a potential radionuclide for brachytherapy applications.
- Accurate radionuclide standardization is crucial for its safe and effective use in medicine.
Purpose of the Study:
- To standardize the radionuclide 142Pr produced via neutron activation.
- To compare the results obtained from different radioactivity measurement techniques.
Main Methods:
- Production of 142Pr by irradiating natural Pr2O3 powder in a research reactor.
- Dissolution of the irradiated material and preparation for measurement.
- Standardization using the CIEMAT/NIST efficiency tracing method, gamma spectrometry, and a calibrated ionization chamber.
Main Results:
- Activity measurements from all employed standardization methods were found to be compatible within their stated uncertainties.
- The CIEMAT/NIST efficiency tracing method yielded the lowest measurement uncertainty.
Conclusions:
- The standardization of 142Pr was successfully achieved using multiple techniques.
- The CIEMAT/NIST efficiency tracing method is a reliable and precise technique for 142Pr radionuclide standardization.
