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Accelerator Physics in Finland

Accelerator Physics in Finland. RECFA 26.9.2003 A. Virtanen. Outline. Few Remarks (1 transparency). Accelerators in Finland (4) Helsinki Turku Jyväskylä. Accelerator Physics in Jyväskylä (3). Future Plans (1). Few Remarks. Research Accelerators are

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Accelerator Physics in Finland

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  1. Accelerator Physics in Finland RECFA 26.9.2003 A. Virtanen

  2. Outline • Few Remarks (1 transparency) • Acceleratorsin Finland (4) • Helsinki • Turku • Jyväskylä • Accelerator Physics in Jyväskylä (3) • Future Plans (1)

  3. Few Remarks • Research Accelerators are • versatile; utilise wide range of energies, ions, intensities… • Production Accelerators are • more “one task” accelerators • The modification of research accelerator (incl. ion sources) to production machine needs Accelerator Physics (examples) • Note! Accelerator Physics  Accelerator Based Physics

  4. Accelerators in FinlandHelsinki: Kumpula Accelerator Laboratory • 5 MV tandem for protons and heavy ions • Ep= 2-10 MeV, EH-I according to stripping, e.g. Au-ions for ERDA • Several ion sources, e.g. duoplasmatron for AMS… • 500 kV accelerator • high-current implantation and material characterisation • 10 kV ion gun • material modification • 30 kV accelerator under construction • Implantation, thin-film production, material research…

  5. Accelerators in FinlandHelsinki: Laboratory of Radiochemistry • IBA 10/5 Production cyclotron • Energies fixed to 10 MeV for protons and 5 MeV for deuterons • Meant for the production of positron emitters • Some other applications • Radioisotope production (18-F) • Irradiation of polymers • Etc…

  6. Accelerators in FinlandTurku: Åbo Akademi • MGC-20 cyclotron • protons and alphas up to 20 MeV • radionuclide production for PET studies in Turku PET-center • + some materials study • A new CC-18/9 H/D-cyclotron this autumn from Russia • Ep+ = 18 MeV, ED+ = 9 MeV • will be installed in the PET center • used for positron emitters production

  7. Examples Accelerators in FinlandJyväskylä: JYFL / University of Jyväskylä • K-130 cyclotron • Protons < 65 MeV, heavy-ions up to Xe < 1 GeV • All gaseous and 19 metallic elements • Two ECR (6.4 and 14.5 GHz) ion sources for heavy-ions • One multicusp ion-source for H– -ions • Research machine! Modifications needed for applications

  8. Accelerator Physics in Jyväskylä • History in a nutshell • 1988-89: design of magnets and manufacturing of the main components were done in Jyväskylä • 1990-91: installation of the cyclotron and the 6.4 GHz ECR • 1992: First extracted beam • 1992-93: development of MIVOC technique • 1996: First time over 6000 h/y • 1999-2000: new 14.5 GHz ECR and H –sources built and installed • 2001: 6.4 GHz ECR upgraded • 2003: TWTA will be installed • Oven- and sputtering techniques in progress

  9. Accelerator Physics in Jyväskylä Application #1: Radioisotope production • => Change from H+ to H acceleration was necessary • Built a new H ion source • Built a new stripper extraction • Installed a new 20º dipole • Built an automated inflector changing system • More intensity with lower activation was needed

  10. Ion Cocktail M/Q=3.8 Energy MeV Range μm Si LET MeV(mg/cm²) 15N4+ 140 211 2.0 22Ne6+ 205 156 3.4 30Si8+ 280 127 7.0 40Ar12+ 372 117 11.7 56Fe15+ 523 95 18.0 82Kr22+ 766 93 29.0 JYFL – Ion Cocktail produced for ESA Nov. 2002. Accelerator Physics in Jyväskylä Application #2: Irradiation tests of semiconductors • Modifications will be needed • Install second frequency to the 14.5 GHz ECR (TWTA) • Build a new beam flux tuning system • Build a new beam current integrator system • Develop new beam cocktails for the ECR’s

  11. Accelerator Physics in Jyväskylä Future plans • Beam developments with both ECR’s continue actively • Oven-, sputtering techniques… • More intense beams, versatile and energetic beam cocktails… TWTA pushes the energy over 1 GeV !!! • Later more powerful ECR is needed…or new accelerator? • But, Extremely Important is to continue the co-operation with the European accelerator physics community e.g. in radioactive beams (EURISOL), in accelerators and ion sources, in educating young scientists etc… w/o forgetting the co-operation with U.S. labs, Japan, Canada…

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