STM_51540-04_2012.pdf

ISO/ASTM 51540:2004(Reapproved 2012)(E)Standard Practice forUse of a Radiochromic Liquid Dosimetry System1This standard is issued under the fixed designation ISO/ASTM 51540;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 preparation,handling,testing,and using radiochromic liquid dosimetrysystems of radiochromic dye solutions held in sealed or cappedcontainers(for example,ampoules,vials).It also covers the useof spectrophotometric or photometric readout equipment formeasuring absorbed dose in materials irradiated by photonsand electrons.1.2 This practice applies to radiochromic liquid dosimetersolutions that can be used within part or all of the specifiedranges as follows:1.2.1 The absorbed dose range is from 0.5 to 40 000 Gy forphotons and electrons.1.2.2 The absorbed dose rate is from 103to 1011Gy/s.1.2.3 The radiation energy range for photons is from 0.01 to20 MeV.1.2.4 The radiation energy range for electrons is from 0.01to 20 MeV.NOTE1Since electrons with energies less than 0.01 MeV may notpenetrate the container of the solution,the solutions may be stirred in anopen beaker with the electrons entering the solutions directly(1).21.2.5 The irradiation temperature range is from 40 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:3C912 Practice for Designing a Process for Cleaning Techni-cal GlassesE170 Terminology Relating to Radiation Measurements andDosimetryE275 Practice for Describing and Measuring Performance ofUltraviolet and Visible SpectrophotometersE666 Practice for Calculating Absorbed Dose From Gammaor X RadiationE668 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:351261 Guide for Selection and Calibration of DosimetrySystems for Radiation Processing51400 Practice for Characterization and Performance of aHigh-Dose Gamma Radiation Dosimetry CalibrationLaboratory51707 Guide for Estimating Uncertainties in Dosimetry forRadiation Processing2.3 International Commission on Radiation Units and Mea-surements(ICRU)Reports:4ICRU Report 14 Radiation Dosimetry:X-Rays and GammaRays with Maximum Photon Energies Between 0.6 and 50MeVICRU Report 17 Radiation Dosimetry:X-Rays Generated atPotentials of 5 to 150 kV1This practice is under the jurisdiction of ASTM Committee E61 on RadiationProcessing and is the direct responsibility of Subcommittee E61.02.on,and is alsounder the jurisdiction of ISO/TC 85/WG 3.Current edition approved March 21,2012.Published November 2012.Originallypublished as E 1540 93.Last previous ASTM edition E 1540981.ASTME 154093 was adopted by ISO in 1998 with the intermediate designation ISO15565:1998(E).ThepresentInternationalStandardISO/ASTM51540:2004(2012)(E)replaces ISO 15565 and is a reapproval of the last previousedition ISO/ASTM 51540:2004(E).2The boldface numbers in parentheses refer to the bibliography at the end of thispractice.3For 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.4Available 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 ICRU Report 34 The Dosimetry of Pulsed RadiationICRU Report 35 Radiation Dosimetry:Electron Beams withEnergies between 1 and 50 MeVICRU Report 37 Stopping Powers for Electrons and PhotonsICRU Report 44 Tissue Substitutes in Radiation Dosimetryand MeasurementICRU Report 60 Fundamental Quantities and Units forIonizing Radiation3.Terminology3.1 Definitions:3.1.1 calibration curvegraphical representation of the do-simetry systems response function.3.1.2 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.3.1.3 dosimetry systemsystem used for determining ab-sorbed dose,consisting of dosimeters,measurement instru-ments and their associated reference standards,and proceduresfor the systems use.3.1.4 measurement quality assurance plandocumentedprogram for the measurement