Essential characteristics of polymer gel dosimeters聚合物凝胶剂量计地基本特性.pdf

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1、JournalofPhysics:ConferenceSeriesRelatedcontent-TopicalReviewEssentialcharacteristicsofpolymergeldosimetersCBaldock,YDeDeene,SDoranetal.-CharacteristicsofnormoxicpolymergelTocitethisarticle:YDeDeene2004J.Phys.:Conf.Ser.334dosimetersYDeDeene,KVergote,CClaeysetal.-Stabi

2、lityofpolymergeldosimetersYDeDeene,AVenning,CHurleyetal.Viewthearticleonlineforupdatesandenhancements.Recentcitations-EvaluationofdoserateandphotonenergydependenceofPASSAGpolymergeldosimeterBagherFarhoodetal-Theimpactoftheoxygenscavengeronthedose-ratedependenceanddose

3、sensitivityofMAGICtypepolymergelsMuzafarKhanetal-EvaluationoftheAccuracyofPolymerGelsforDeterminingElectronDoseDistributionsinthePresenceofSmallHeterogeneitiesR.GhahramanAsletalThiscontentwasdownloadedfromIPaddress117.44.93.5on29/08/2018at11:40InstituteofPhysicsPublis

4、hingJournalofPhysics:ConferenceSeries3(2004)34–57doi:10.1088/1742-6596/3/1/006ThirdInternationalConferenceonRadiotherapyGelDosimetryEssentialcharacteristicsofpolymergeldosimetersYDeDeeneMRdepartment(-1K12),GhentUniversityHospital,DePintelaan185,9000Gent,BelgiumE-mail:

5、Yves.DeDeene@UGent.beAbstract.Foraphysicalmeasurementinstrumentdifferentrequirementshavetobefulfilledsuchasitsinsensitivitytouncontrollableenvironmentalparametersanditsstability.Ontheotherhand,inordertomeetanassignedaccuracy,allmeasurementinstrumentsshouldbeoperatedin

6、anapprovedmanner.Polymergeldosimetersareuniqueintheirkindastheyareabletointegratethedoseinthreedimensionsandcanbeshapedinahumanoidform.Inthispaper,wefocusondifferentcharacteristicsthatdeterminetheaccuracyofpolymergeldosimetersfromthepoint-of-viewoftheiruseas3Ddosimete

7、rsinradiotherapy.Itisshownthattheaccuracyishighlydependentonthecompositionofpolymergel.Thecomparisonoftheradiologicalcharacteristicsmayhelpinunderstandingtheunderlyingmechanismsofthepolymergeldosimetersandinoptimizingthechemicalcompositionintermsofbothdoseandspatialac

8、curacy.1.IntroductionEssentially,polymergeldosimetersconsistofahydrogelinwhichmonomersaredissolved.Uponirradiation,aradiatio