1.1 This is a practice for using a radiochromic optical
waveguide dosimetry system to measure absorbed dose in
materials irradiated by photons and high energy electrons in
terms of absorbed dose to water. The radiochromic optical
waveguide dosimetry system is generally used as a routine
dosimetry system.
1.2 The optical waveguide dosimeter is classified as a Type
II dosimeter on the basis of the complex effect of influence
quantities (see ISO/ASTM Practice 52628).
1.3 This document is one of a set of standards that provides
recommendations for properly implementing dosimetry in
radiation processing, and describes a means of achieving
compliance with the requirements of ISO/ASTM 52628 for an
optical waveguide dosimetry system. It is intended to be read
in conjunction with ISO/ASTM Practice 52628.
1.4 This practice applies to radiochromic optical waveguide
dosimeters that can be used within part or all of the specified
ranges as follows:
1.4.1 The absorbed dose range is from 1 Gy to 20 000 Gy.
1.4.2 The absorbed dose rate is from 0.001 Gy/s to 1000
Gy/s.
1.4.3 The radiation photon energy range is from 1 MeV to
10 MeV.
1.4.4 The radiation electron energy range is from 3 MeV to
25 MeV.
1.4.5 The irradiation temperature range is from –78 °C to
+60 °C.
1.5 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
standard.
1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appropriate
safety, health, and environmental practices and determine
the applicability of regulatory limitations prior to use.
1.7 This international standard was developed in accordance
with internationally recognized principles on standardization
established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations
issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.