0000000000147183

AUTHOR

Sandro Onori

showing 2 related works from this author

Transferability of ASTM/NIST alanine–polyethylene recipe at ISS

2000

Abstract Alanine–polyethylene solid state dosimeters were prepared at Istituto Superiore di Sanita (ISS) following the recipe proposed by National Institute of Standards and Technology (NIST) with the goal of testing its transferability. Dosimeters were prepared using 95% alanine and 5% polyethylene, by weight. They are rugged and of increased sensitivity, repeatability and reproducibility as respect to the ISS alanine-paraffin pellets. Reproducibility of about 1% was obtained at 10 Gy and at 3 Gy if one single pellet or a stack of five dosimeters were used, respectively.

chemistry.chemical_compoundReproducibilityRadiationMaterials sciencechemistryRecipeSingle pelletTransferabilityRadiochemistrySolid-stateNISTRepeatabilityPolyethyleneApplied Radiation and Isotopes
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Study of intrinsic energy dependence of α-alanine and dose intercomparison with ESR and ISE techniques

1993

Abstract The intrinsic energy behavior of the radiation chemical yields G(R·) and G(NH3) which determine the dose response for the alanine/ESR and alanine/Ion-Selective Electrode (ISE) system, is an important characteristic for the consistent use in different radiation environments. Therefore, the response of ISS and Gent α-alanine dosimeters in the dose range 0.1 to 700 kGy was examined with 60Co, bremsstrahlung and electron beam radiation. Bremsstrahlung beams with end point energy between 5 and 12 MeV and electron beams with mean energy at the effective point of measurement between 4 and 25 MeV were used. Analysis of the 60Co calibration results shows that there are no significant differ…

Range (particle radiation)RadiationDosimeterChemistryCalibrationAnalytical chemistryElectron beam processingBremsstrahlungDosimetryElectronRadiationApplied Radiation and Isotopes
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