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Publication Citation: Technical Aspects of the Dissemination of the Air-Kerma Standard from Cs137 Gamma-Ray Beams in the United States

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Author(s): Ronaldo Minniti;
Title: Technical Aspects of the Dissemination of the Air-Kerma Standard from Cs137 Gamma-Ray Beams in the United States
Published: October 20, 2008
Abstract: The national standard for air kerma from gamma-ray beams is maintained in the US by the National Institute of Standards and Technology (NIST), the primary standard dosimetry laboratory in the US. The standard is disseminated throughout the US by a well established network of calibration facilities. The main tool used at both NIST and at these calibration facilities for disseminating the national standard are cesium irradiators. The output of these cesium irradiators is well known at each one of the calibration facilities and is therefore used for calibrating radiation detection equipment in terms of the radiation quantity air kerma. This ensures the accuracy of measurements performed with radiation detection equipment used in numerous types of applications throughout the country. In this paper a brief description of the standards program at NIST will be presented including the dissemination of the national standard for air kerma from gamma-ray beams throughout the US. Technical aspects about the operation of the NIST facilities will be described
Proceedings: 12th International Radiation Protection Association Congress
Pages: 3 pp.
Location: Buenos Aires, AR
Dates: October 20-24, 2008
Keywords: air-kerma; calibration; cesium; gamma-ray; ionization chamber; national standard; radiation detection
Research Areas: Calibrations (Ionizing Radiation)