6533b834fe1ef96bd129e2dc
RESEARCH PRODUCT
Determination of mass attenuation coefficient by numerical absorption calibration with Monte-Carlo simulations at 59.54 keV
D. DegrelleChristophe MavonJ.-e. Groetzsubject
Nuclear and High Energy PhysicsCalibration curveMonte Carlo method[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]010403 inorganic & nuclear chemistry01 natural sciences030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicineOpticsTransmission geometryTransmission methodCalibrationMass attenuation coefficientMass attenuation coefficient[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det][ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex]Absorption (electromagnetic radiation)[ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]InstrumentationChemical compositionPhysicsbusiness.industryNumerical analysisSelf-absorptionMonte-Carlo method0104 chemical sciencesComputational physicsbusinessGamma spectrometrydescription
Abstract This study presents a numerical method in order to determine the mass attenuation coefficient of a sample with an unknown chemical composition at low energy. It is compared with two experimental methods: a graphic method and a transmission method. The method proposes to realise a numerical absorption calibration curve to process experimental results. Demineralised water with known mass attenuation coefficient ( 0.2066 cm 2 g − 1 at 59.54 keV) is chosen to confirm the method. 0.1964 ± 0.0350 cm 2 g − 1 is the average value determined by the numerical method, that is to say less than 5% relative deviation compared to more than 47% for the experimental methods.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-04-01 |