STM_51310-04_2012.pdf

ISO/ASTM 51310:2004(Reapproved 2012)(E)Standard Practice forUse of a Radiochromic Optical Waveguide DosimetrySystem1This standard is issued under the fixed designation ISO/ASTM 51310;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.1.Scope1.1 This practice covers the procedures for handling,testing,and using a radiochromic optical waveguide dosimetrysystem to measure absorbed dose in materials irradiated byphotons in terms of absorbed dose in water.1.2 This practice applies to radiochromic optical waveguidedosimeters that can be used within part or all of the specifiedranges as follows:1.2.1 The absorbed dose range is from 1 to 10 000 Gy forphotons.1.2.2 The absorbed dose rate is from 0.001 to 1000 Gy/s.1.2.3 The radiation energy range for photons is from 0.1 to10 MeV.1.2.4 The irradiation temperature range is from 78 to+60C.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced documents2.1 ASTM Standards:2E170 Terminology Relating to Radiation Measurements andDosimetryE275 Practice for Describing and Measuring Performance ofUltraviolet and Visible SpectrophotometersE668 Practice for Application of Thermoluminescence-Dosimetry(TLD)Systems for Determining AbsorbedDose in Radiation-Hardness Testing of Electronic DevicesE925 Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Bandwidthdoes not Exceed 2 nmE958 Practice for Estimation of the Spectral Bandwidth ofUltraviolet-Visible SpectrophotometersE1026 Practice for Using the Fricke Dosimetry System2.2 ISO/ASTM Standards:251261 Guide for Selection and Calibration of DosimetrySystems for Radiation Processing51400 Practice for Characterization and Performance of aHigh-Dose Radiation Dosimetry Calibration Laboratory51707 Guide for Estimating Uncertainties in Dosimetry forRadiation Processing2.3 International Commission on Radiation Units and Mea-surements(ICRU)Reports:3ICRU Report 14 Radiation Dosimetry:X-Rays and GammaRays with Maximum Photon Energies Between 0.6 and 50MeVICRU Report 17 Radiation Dosimetry:XRays Generated atPotentials of 5 to 150 kVICRU Report 34 The Dosimetry of Pulsed RadiationICRU Report 60 Fundamental Quantities and Units forIonizing Radiation3.Terminology3.1 Definitions:3.1.1 analysis wavelengthwavelength used in a spectro-photometric instrument for the measurement of optical absor-bance or reflectance.3.1.2 calibration curvegraphical representation of the do-simetry systems response function.3.1.3 dosimeter batchquantity of dosimeters made from aspecific mass of material with uniform composition,fabricatedin a single production run under controlled,consistent condi-tions and having a unique identification code.3.1.4 dosimetry systemsystem used for determining ab-sorbed dose,consisting of dosimeters,measurement instru-ments and their associated reference standards,and proceduresfor the systems use.1This guide is under the jurisdiction of ASTM Committee E61 on RadiationProcessing and is the direct responsibility of Subcommittee E61.02 on DosimetrySystems,and is also under the jurisdiction of ISO/TC 85/WG 3.Current edition approved March 21,2012.Published November 2012.Originallypublished as ASTM E 131089.Last previous ASTM edition E 1310981.ASTME 131094 was adopted by ISO in 1998 with the intermediate designation ISO15559:1998(E).ThepresentInternationalStandardISO/ASTM51310:2004(2012)(E)replaces ISO 15559 and is a reapproval of the last previousedition ISO/ASTM 51310:2004(E).2For referenced ASTM and ISO/ASTM standards,visit the ASTM website,www.astm.org,or contact ASTM Customer Service at serviceastm.org.ForAnnual Book of ASTM Standards volume information,refer to the standardsDocument Summary page on the ASTM website.3Available from the International Commission on Radiation Units andMeasurements,7910 Woodmont Ave.,Suite 800,Bethesda,MD 20814,U.S.A.ISO/ASTM International 2015 All rights reserved1 3.1.5 measurement quality assurance plandocumentedprogram for the measurement process that ensures on acontinuing basis that the overall uncertainty meets the require-ments of the specific application.This plan requires traceabilityto,and consistency with,nationally or internationally recog-nized standards.3.1.6 net response,R radiationinduced change in therelationship of measured absorbance at a specific wavelengthdetermined by subtracting the preirradiation response,R0,from the postirradiation response,R:R 5 R 2 R0(1)with:R 5AArefR0 5FAArefG0(2)and where:A=optical absorbance at the analysis wavelength,andAref=optical absorbance at a reference wavelength,ref.3.1.7 optical waveguidedevice that contains an opticalpath at a high index of refraction relative to the materialenclosin