Standardization and nuclear decay data of 65Zn.

Area of Science:

• Nuclear Metrology
• Radiochemistry
• Applied Physics

Background:

• Accurate activity concentration determination is crucial for radioactive sources.
• Standardization of radionuclides like 65Zn is essential for various applications.

Purpose of the Study:

• To calibrate a 65Zn solution using 4pi beta-gamma coincidence counting.
• To investigate photon emission probabilities by combining different measurement techniques.
• To improve the accuracy of 65Zn half-life measurements.

Main Methods:

• 4pi beta-gamma coincidence counting for primary standardization.
• Gamma-ray spectrometry for photon emission probability analysis.
• 4pi ionization chamber systems for half-life measurements and secondary standardization.
• Liquid scintillation counting for testing new secondary standardization procedures.

Main Results:

• Successful calibration of the 65Zn solution.
• Improved accuracy in the measured half-life of 65Zn.
• Validation of a new secondary standardization method using liquid scintillation counting.

Conclusions:

• The applied methods provide accurate standardization of 65Zn.
• The study contributes to the metrology of radionuclides.
• Further validation of secondary standardization techniques is demonstrated.