2012
SU‐E‐T‐92: on the Use of High‐Sensitivity Thermoluminescent Dosimeters (TLDs) for Dosimetric Characterization of Low‐Energy Brachytherapy Sources
Chen Z, Bongiorni P, Donahue W, Hearn R, Rodgers J, Nath R. SU‐E‐T‐92: on the Use of High‐Sensitivity Thermoluminescent Dosimeters (TLDs) for Dosimetric Characterization of Low‐Energy Brachytherapy Sources. Medical Physics 2012, 39: 3723-3723. PMID: 28517162, DOI: 10.1118/1.4735149.Peer-Reviewed Original ResearchRoom temperatureTLD-100HIrradiation timeThermal reservoirReservoir systemLow-energy brachytherapy sourcesDosimetric characterizationDosimetry characterizationAnnealingSource characterizationTLD-100Solid phantomHeatingTemperatureC heatingTest casesReservoirBrachytherapy sourcesWater equivalent solid phantomCharacterizationCs-137 irradiator
2008
Ice as a water-equivalent solid medium for brachytherapy dosimetric measurements
Song H, Chen Z, Yue N, Wu Q, Yin FF. Ice as a water-equivalent solid medium for brachytherapy dosimetric measurements. Radiation And Environmental Biophysics 2008, 48: 145-151. PMID: 19066926, DOI: 10.1007/s00411-008-0205-9.Peer-Reviewed Original ResearchConceptsSolid phantomWater conversion factorNon-negligible uncertaintiesMono-energetic photonsPrecise positioningLow-energy photon-emitting brachytherapy sourcesChemical compositionBrachytherapy sourcesPositioning advantageDosimetric measurementsExperimental determinationNecessary precisionDosimetric characteristicsPhantomIceBrachytherapy dosimetryPositioningConversion factorPhotonsUncertaintyKeV
2007
Photon spectrometry for the determination of the dose‐rate constant of low‐energy photon‐emitting brachytherapy sources
Chen ZJ, Nath R. Photon spectrometry for the determination of the dose‐rate constant of low‐energy photon‐emitting brachytherapy sources. Medical Physics 2007, 34: 1412-1430. PMID: 17500473, DOI: 10.1118/1.2713217.Peer-Reviewed Original ResearchConceptsPhoton spectrometry techniquePhoton spectrometryHigh-resolution gamma-ray spectrometerDosimetry techniquesLow-energy photonsPhoton energy spectrumMono-energetic photonsGamma-ray spectrometerLow-energy photon-emitting brachytherapy sourcesBrachytherapy sourcesLow-energy sourcesAbsolute dosimeterPhoton characteristicsEnergy dependenceDetector sensitivityDetector sizeSolid phantomDose rate measurementsPhotonsDosimetric propertiesRadiation dosimetryDose rate constantDose rateSpectrometry techniquesAccurate measurement
2006
SU‐FF‐T‐90: An Improved Irradiation Setup for An Accurate Measurement of the Dose Rate Constant of Low‐Energy Brachytherapy Sources Using Micro‐TLD Cubes
Chen Z, Deng J, Bongiorni P, Nath R. SU‐FF‐T‐90: An Improved Irradiation Setup for An Accurate Measurement of the Dose Rate Constant of Low‐Energy Brachytherapy Sources Using Micro‐TLD Cubes. Medical Physics 2006, 33: 2069-2069. DOI: 10.1118/1.2241015.Peer-Reviewed Original ResearchPerpendicular directionIrradiation setupExperimental setupLow-energy brachytherapy sourcesMeasurement pointsGeometric uncertaintiesSetupSolid phantomAccurate measurementDisplacementBrachytherapy sourcesConstant measurementsCubeMeasurementsUncertaintyErrorWater equivalent solid phantomDirectionTLDAir kerma strengthStrengthMaterialsPositional uncertainty