0000000001030214

AUTHOR

Gianluigi Maggioni

showing 2 related works from this author

Innovative remotely-controlled bending device for thin silicon and germanium crystals

2020

Steering of negatively charged particle beams below 1 GeV has demonstrated to be possible with thin bent silicon and germanium crystals. A newly designed mechanical holder was used for bending crystals, since it allows a remotely-controlled adjustment of crystal bending and compensation of unwanted torsion. Bent crystals were installed and tested at the MAMI Mainz MIcrotron to achieve steering of 0.855-GeV electrons at different bending radii. We report the description and characterization of the innovative bending device developed at INFN Laboratori Nazionali di Legnaro (LNL).

Physics - Instrumentation and DetectorsMaterials scienceAccelerator ApplicationsSiliconBeam OpticsNegatively charged particleAccelerator Applications; Beam Optics; Instrumentation for particle accelerators and storage rings - high energy (linear accelerators synchrotrons); Instrumentation for particle accelerators and storage rings - lowenergy (linear accelerators cyclotrons electrostatic accelerators); Instrumentation; Mathematical PhysicsBent molecular geometryFOS: Physical scienceschemistry.chemical_elementGermaniumElectron01 natural sciencesInstrumentation for particle accelerators and storage rings - lowenergy (linear accelerators cyclotrons electrostatic accelerators)Instrumentation for particle accelerators and storage rings - high energy (linear accelerators synchrotrons)NOCrystal0103 physical sciencesNuclear Experiment010306 general physicsInstrumentationMicrotronMathematical Physics010308 nuclear & particles physicsbusiness.industryTorsion (mechanics)Instrumentation and Detectors (physics.ins-det)chemistryPhysics::Accelerator PhysicsOptoelectronicsbusinessJournal of Instrumentation
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Effects of heat treatments on the properties of copper phthalocyanine films deposited by glow-discharge-induced sublimation

2006

Copper phthalocyanine films have been deposited by glow-discharge-induced sublimation. The films have undergone postdeposition heat treatments in air at 250 and 290 °C for different times, ranging from 30 min to 14 h. The properties of as-deposited and heated films have been investigated by different techniques in order to determine the effects of heat treatments on the film properties. Fourier transform infrared analysis and UV−visible optical absorption analysis point out a gradual evolution of the film structure from a mixture of α and β polymorphs to the only β polymorph in the sample heated at 290 °C for 14 h. A pronounced decrease of carbon and nitrogen atomic percentages against an o…

Materials Chemistry2506 Metals and Alloysgas sensingGlow dischargeMaterials sciencephthalocyanine EXAFSIon beamAbsorption spectroscopyGeneral Chemical EngineeringAnalytical chemistryAmbientaleGeneral ChemistryRutherford backscattering spectrometryNO2 detectionx-ray absorption spectroscpy; gas sensing; thin films; NO2 detectionX-ray photoelectron spectroscopythin filmsMaterials Chemistry2506 Metals and Alloys; Materials Science (all)Nuclear reaction analysisMaterials Chemistryx-ray absorption spectroscpySublimation (phase transition)Materials Science (all)Thin film
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