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The Uzbek National Institute of Metrology

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Area of Science:

  • Metrology and Radiation Science
  • Calibration and Measurement Services

Background:

  • Uzbekistan's metrology institute calibrates radiation monitoring instruments for critical sectors.
  • A new 137Cs irradiation system was installed, incorporating advanced safety and automation.

Purpose of the Study:

  • To review the performance of the new 137Cs irradiation system.
  • To ensure compliance with international standards (ISO 4037).
  • To present the measurement uncertainty budget.

Main Methods:

  • Performance evaluation of the 137Cs system against ISO 4037 criteria.
  • Analysis of parameters including scattered radiation, beam uniformity, and source stability.
  • Development of a measurement uncertainty budget.

Main Results:

  • The 137Cs irradiation system demonstrated excellent performance.
  • Key parameters such as scattered radiation, beam uniformity, and source calibration met ISO 4037 requirements.
  • All tested parameters fully complied with the specified international standards.

Conclusions:

  • The newly installed 137Cs irradiation system meets high performance standards.
  • The system is suitable for calibrating radiation monitoring instruments in Uzbekistan.
  • The performance analysis confirms the system's reliability and adherence to ISO 4037.