0000000000749366

AUTHOR

M. Nurmia

showing 4 related works from this author

Production of titanium ion beams in an ECR ion source

2002

Abstract Intensive highly charged Ti ion beams were successfully produced in the 14 GHz ECR ion source at the Accelerator Laboratory, University of Jyvaskyla (JYFL). The Ti beams were produced using the MIVOC technique, i.e. by allowing the vapor of an organic compound containing titanium to diffuse into the ion source at room temperature. After optimizing the source parameters the intensity of the 48 Ti 11+ ion beam reached a value of 45 μA.

chemistry.chemical_classificationNuclear and High Energy PhysicsMaterials scienceIon beamAnalytical chemistrychemistry.chemical_elementTitanium ionOrganic compoundIon sourceIonIon beam depositionchemistryPhysics::Plasma PhysicsPhysics::Accelerator PhysicsAtomic physicsInstrumentationTitaniumNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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Production of a magnesium ion beam using the MIVOC method

1996

Abstract We report the successful production of multiply charged Mg ion beams at the Jyvaskyla ECRIS using a magnesium compound, magnesocene. The compound was placed in a separate vacuum chamber connected to the second stage of the 6.4 GHz JYFL-ECRIS. From there the vapour of the compound was allowed to diffuse into the source at room temperature. After a brief optimizing procedure the intensity of the 24 Mg 5+ beam was measured to be 11.8 eμA.

Nuclear and High Energy PhysicsIon beamChemistryMagnesiumAnalytical chemistrychemistry.chemical_elementVacuum chamberInstrumentationMagnesium ionBeam (structure)IonNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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Metal ion beams from an ECR ion source using volatile compounds

1994

Abstract A new MIVOC method (Metal Ions from Volatile Compounds) at an ECR ion source gives a means to produce highly charged metal ion beams at room temperature conditions. Chemical compounds containing metallic atoms are utilized. The compound has to fulfill the two basic requirements: Vapour pressure of the compound is relatively high at room temperature. Evaporation and diffusion of the compound into the source take place without dissociation of the molecule. Up to present metal ion beams from iron and nickel compounds have been produced. The maximum currents of 56Fe9+ and 58Ni10+ from natural elements were 23.9 μA and 18.7 μA, respectively. First measurements have demonstrated the abil…

Nuclear and High Energy PhysicsChemistryVapor pressureHigh intensityMetal ions in aqueous solutionInorganic chemistryAnalytical chemistryIon sourceDissociation (chemistry)MetalNickel compoundsvisual_artvisual_art.visual_art_mediumMoleculeInstrumentationNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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Gas-filled recoil separator for studies of heavy elements

1995

Abstract A gas-filled recoil separator for the study of heavy elements has been constructed. The separator is of type QDQQ with the first, vertically focusing, quadrupole providing improved matching to the acceptance of the dipole magnet. The separator has been designed also for use in vacuum mode in which case a mass resolving power of ≈ 100 is estimated. The deflection angle is 25° and the radius of curvature is 1850 mm. Maximum beam rigidity is 2.2 T m. In the first experiments, new isotopes in the region Z = 85–90 have been synthesized.

Nuclear and High Energy Physics010308 nuclear & particles physicsChemistrySeparator (oil production)01 natural sciences7. Clean energyRecoil separatorDeflection angleNuclear physicsRigidity (electromagnetism)Dipole magnet0103 physical sciencesQuadrupole010306 general physicsInstrumentationNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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