0000000001109723

AUTHOR

L. Palmu

showing 2 related works from this author

The effect of oxygenation on the radiation hardness of silicon studied by surface photovoltage method

2002

The effect of oxygenation on the radiation hardness of silicon detectors was studied. Oxygen-enriched and standard float-zone silicon pin-diodes and oxidized samples were processed and irradiated with 15-MeV protons. After the irradiations, the surface photovoltage (SPV) method was applied to extract minority carrier diffusion lengths of the silicon samples. Adding oxygen to silicon was found to improve the radiation hardness of silicon. The effect was visible in minority carrier diffusion lengths as well as in reverse bias leakage currents. The suitability of SPV method for characterizing irradiated silicon samples was proved.

inorganic chemicalsNuclear and High Energy PhysicsMaterials scienceSiliconPhysics::Instrumentation and Detectorsbusiness.industrySurface photovoltageDetectortechnology industry and agriculturechemistry.chemical_elementCarrier lifetimeequipment and suppliescomplex mixturesOxygenstomatognathic diseasesNuclear Energy and EngineeringchemistryOptoelectronicsIrradiationElectrical and Electronic EngineeringbusinessRadiation hardeningLeakage (electronics)IEEE Transactions on Nuclear Science
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Annealing study of oxygenated and non-oxygenated float zone silicon irradiated with protons

2003

Abstract Introducing oxygen into the silicon material is believed to improve the radiation hardness of silicon detectors. In this study, oxygenated and non-oxygenated silicon samples were processed and irradiated with 15 MeV protons. In order to speed up the defect reactions after the exposure to particle radiation, the samples were heat treated at elevated temperatures. In this way, the long-term stability of silicon detectors in hostile radiation environment could be estimated. Current–voltage measurements and Surface Photovoltage (SPV) method were used to characterize the samples.

inorganic chemicalsPhysicsNuclear and High Energy PhysicsSiliconPhysics::Instrumentation and Detectorsbusiness.industryAnnealing (metallurgy)Surface photovoltagetechnology industry and agricultureAnalytical chemistrychemistry.chemical_elementRadiationFloat-zone siliconequipment and suppliescomplex mixtureschemistryOptoelectronicsIrradiationParticle radiationbusinessInstrumentationRadiation hardeningNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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