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Instrument Calibration

Instrument Calibration

Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...

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ICARE Radon Calibration Device.

¹Centre d'Etudes Nucléaires de Fontenay-aux-Roses, CEN/FAR, BP 6, 92265, Fontenay-aux-Roses Cedex, France.

Journal of Research of the National Institute of Standards and Technology

|February 10, 2017

Summary

The ICARE device calibrates instruments for radioactive airborne particle measurement. New developments aim to extend its use for radon-222 (Rn) and its decay products, enhancing radiation monitoring capabilities.

Area of Science:

Nuclear Physics and Environmental Science
Radiological Instrumentation
Atmospheric Radioactivity Measurement

Background:

The ICARE device is utilized at the Nuclear Research Center of Saclay for certifying instruments measuring artificial radioactive particulate airborne contamination.
Current applications involve aerosols labeled with Cesium-137 (Cs) or Plutonium-239 (Pu).
Existing methods rely on a blower system with upstream aerosol injection.

Purpose of the Study:

To extend the ICARE device's application to the measurement of Radon-222 (Rn) and its decay products.
To develop a reliable Rn-222 source using Radium-226 (Ra) on organic fibers.
To establish a reference method for measuring Rn-222 activity concentration in air.

Main Methods:

Design and construction of a new injection line for the ICARE device.

Keywords:

222Rn calibration decay products metrology standard

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Development of a solid-state Radium-226 (Ra) source on organic fibers.

Adaptation of standard French reference method containers for Rn-222 measurement via gamma spectroscopy.

Main Results:

A new injection line for extending ICARE's capabilities is under construction.
Efforts are focused on developing a reliable Rn-222 source.
A modified reference method for Rn-222 measurement is being established, building upon existing techniques for Xenon-133 (Xe) and Krypton-85 (Kr).

Conclusions:

The ICARE device's scope is being expanded to include radon and its decay products.
Advancements in Rn-222 source development and measurement methodologies are crucial for improved environmental radiation monitoring.
This work, funded by the European Community Commission, will enhance the certification of radiation measurement instruments.