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eFFAG design study

eFFAG design study. YUASA, Yoshimasa Working Group 3. Collaborators. NHVC Baba, Yuasa, Takahashi MELCO Nagayama, Tanaka, Ishi MHI Yoshida KEK Kurokawa, Mori, Taki, Win, Yonemura Hiroshima Univ. Okabe. Motivation. Sterilization 10MeV electron accelerator IBA Rhodtron

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eFFAG design study

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  1. eFFAG design study YUASA, Yoshimasa Working Group 3

  2. Collaborators • NHVC • Baba, Yuasa, Takahashi • MELCO • Nagayama, Tanaka, Ishi • MHI • Yoshida • KEK • Kurokawa, Mori, Taki, Win, Yonemura • Hiroshima Univ. • Okabe

  3. Motivation • Sterilization • 10MeV electron accelerator • IBA Rhodtron • TT300 (10MeV, 200kW)

  4. Goal • The eFFAG must be beyond IBA Rhodtron • Requirements for 10MeV, 200kW eFFAG • Energy 100keV-10MeV • Average/Peak current 20mA/100mA • Duty 20% • Outer diameter <3m • Power consumption <500kW • Weight <11 ton • Cost <¥500M

  5. View in Goal • Based on FFAG03 design

  6. Works • Optics design • Linear optics • Injection scheme • Base on FFAG03 work • Induction acceleration • Core design • Magnet design • Distributed coil model • Extraction scheme • Massless septum

  7. Optics • Linear optics (hard edge)

  8. Optics • Parameters

  9. Induction acceleration • Core design

  10. Magnet • Distributed coil model It is K=1.6 !

  11. Extraction • Massless Septum • FFAG03

  12. Extraction • Massless septum • Resonance

  13. View

  14. Summary • 10 MeV eFFAG is promising… • Parameters • Energy 100keV-10MeV • Outer diameter 2.3m < 3m • Average/Peak current 20mA / 100mA • Duty 20% • Repetition 5kHz • Power consumption <500kW • Weight 8ton < 11ton • Cost ¥300M < ¥500M • 40% cost down!!!

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