Monte Carlo simulation of the response of ESR dosimeters added with gadolinium exposed to thermal, epithermal and fast neutrons.

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22 Citazioni (Scopus)

Abstract

MonteCarlonumericalcalculationsoftheresponseofalanineandammoniumtartrateESR(electronspin resonance)dosimetersexposedtoneutronfieldswithdifferentenergyspectraarereported.Resultshavebeenobtainedforvariousgadoliniumconcentrationsinsidethedosimeters.Furthermore,inorderto simulatethein-phantomresponsewehavecarriedoutcalculationsbyvaryingthedepthofthedosimeter.Wehavefoundthatalargeenhancementisobtainedforthermalneutrons,becauseofthevery highcapturecrosssectionofgadoliniumtothermalneutrons.Agoodenhancementwasobtainedfor epithermalneutrons,whereasthesensitivityimprovementinthecaseoffastneutronirradiationispoor.Furthermore,thesimulationscarriedoutbyvaryingthedepthsuggeststhatanappreciablesensitivitytothermalandepithermalneutronscouldbeobservedforin-phantommeasurementsinthe2–3cmdepthrange.Theseresultscanprovideusefulinsightforfutureexperimentswithepithermalneutronbeams(suchasthoseusedinneutroncapturetherapy)andforfutureapplicationsinneutroncapturetherapydosimetry.
Lingua originaleEnglish
pagine (da-a)186-189
Numero di pagine4
RivistaApplied Radiation and Isotopes
Volume67
Stato di pubblicazionePublished - 2009

All Science Journal Classification (ASJC) codes

  • Radiation

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