Related Experiment Video
Updated: Jun 14, 2025

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
Establishment of a 241Am gamma calibration field based on international standards and its conversion coefficients
Tomoya Tsuji1, Hiroshi Yoshitomi1, Munehiko Kowatari2
1Department of Radiation Protection, Nuclear Science Research Institute, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan.
Abstract:
A 241Am gamma (γ)-ray calibration field that meets the requirements for a γ-ray reference field as specified in the ISO 4037 standard series was established in the Facility of Radiation Standards of the Japan Atomic Energy Agency. The reference air kerma rates were measured using a reference ionization chamber calibrated by the N-80 quality X-ray calibration field of the national metrology standard in Japan and with a correction to account for differences in photon energy due to the calibration field. Conversion coefficients for the 241Am γ-ray calibration field, including those not listed in the ISO 4037 standard series, were calculated based on the measured γ-ray fluence rate spectra.
Related Concept Videos
Instrument Calibration
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Atomic Absorption Spectroscopy: Lab
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing...
Atomic Emission Spectroscopy: Overview
Atomic Emission Spectroscopy: Lab
Calibration Curves: Linear Least Squares
For data that follow a straight line, the standard method for fitting is the linear...
Atomic Absorption Spectroscopy: Instrumentation
The atomizer used in AAS can be either a flame atomizer or an...

