ISO 6980-1:2006
Nuclear energy - Reference beta-particle radiation - Part 1: Methods of production

Standard No.

ISO 6980-1:2006

Release Date

2006

Published By

International Organization for Standardization (ISO)

Status

Be replaced

Replace By

ISO 6980-1:2022

Latest

ISO 6980-1:2023

Scope

This part of GB/T 12164 specifies the requirements for beta reference radiation fields generated by radionuclide sources. Examples of the properties of these radionuclides and appropriate source structures are given, and methods for measuring the maximum residual energy of beta particles and the dose equivalent rate at a depth of 0.07 mm in the ICRU sphere are described. The energy range is 66 keV ~ 3.6 MeV, and the dose equivalent rate ranges from approximately 10 μSv·h to at least 10 Sv·h. In addition, some source dose equivalent rates as a function of incident angle are given. This section applies to the calibration of personal and site dose (rate) meters for determining H(O.07) and H'(O.07), as well as the determination of their energy response and angular response. This part of GB/T 12164 recommends two series of beta reference radiation fields from which the radiation required to determine the instrument characteristics (calibration and determination of energy response and angular response) can be selected. The Series 1 reference radiation field is generated by a radionuclide source equipped with a beam flattening filter so as to give a uniform dose equivalent rate over a large area at a specified distance. This series of sources includes Sr+Y, Kr, Tl and Pm, producing a maximum dose equivalent rate of approximately 200 mSv·h. The Series 2 reference radiation field does not have a flattening filter, large area planar sources can be used, and the distance from the source to the calibration plane can be adjusted within a certain range. Close to these sources, the dose rate is uniform only over a relatively small area, but this series has the advantage of extending the energy and dose rate range of Series 1. In addition to series 1, the radionuclides used include C and Ru+Rh. The dose rate generated by these sources can reach 10 Sv·h.

ISO 6980-1:2006 Referenced Document

• ISO 6980-3 Nuclear energy*， 2023-11-01 Update

ISO 6980-1:2006 history

• 2023 ISO 6980-1:2023 Nuclear energy
• 2022 ISO 6980-1:2022 Nuclear energy — Reference beta-particle radiation — Part 1: Methods of production
• 2006 ISO 6980-1:2006 Nuclear energy - Reference beta-particle radiation - Part 1: Methods of production