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An Advanced Linear Accelerator Facility for Microelectronic Dose Rate Studies

An Advanced Linear Accelerator Facility for Microelectronic Dose Rate Studies. P.E. Sokol and S.Y.Lee Indiana University. Outline. Introduction NSWC Crane Radiation Effects Program Crane Needs Advanced Accelerator Facility Enhanced Capabilities Improved Performance Summary.

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An Advanced Linear Accelerator Facility for Microelectronic Dose Rate Studies

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  1. An Advanced Linear Accelerator Facility for Microelectronic Dose Rate Studies P.E. Sokol and S.Y.Lee Indiana University

  2. Outline • Introduction • NSWC Crane • Radiation Effects Program • Crane Needs • Advanced Accelerator Facility • Enhanced Capabilities • Improved Performance • Summary

  3. Galactic Cosmic Rays Solar Protons & Heavy Ions Trapped Particles Radiation Effects Natural Environments NSWC Crane’s Strategic Mission support testing of electronics in various radiation environments – both manmade and natural. Man Made Environments • Natural Environments • Solar Protons • Galactic Cosmic Rays (Neutrons) • Man Made Environments • Neutrons • Gamma Rays

  4. Current Crane Capabilities Most powerful electron accelerator in the Department of Defense Moore’s Law 1989 - 20 MHz 80386 2007 - 3.7 GHz Pentium Linac – 1.3 GHz Klystrons

  5. Indiana University Cyclotron Facility IUCF is a multidisciplinary laboratory performing research and development in the areas of accelerator physics, nuclear physics, materials science, and medical applications of accelerators. 130 Staff 60 Faculty, Postdocs, students Funding - $20M/yr IU, NSF, DOE, DOD NIH State&Federal Funds • Mission • Research & Development • Service • Education

  6. Robotics Patient Positioning, Alignment, Heavy Equipment Control Particle Accelerators Design, Construction, Diagnostics, Computer Control, Beam Transport IUCF Technical Capabilities Biomedical Equipment Development Energy Measurement, Range Modulator, Wobbler magnet and controls Particle Detectors Dose Monitoring,Calibration, Data Acquisition, Electronics

  7. Proposed Solution • Key Proposal Features: • Use Storage Ring to: • Accumulate and compress LINAC macropulses • Eliminate RF structure induced by LINAC • Non linear beam optics for uniform irradiation

  8. Debunching • To match the beam from the linac to the storage ring, debunching method is used. • By changing the rf frequency, non-adiabatically, each bunch rotates, and then N bunches become one single bunch in the synchrotron. • The debunching time is determined by

  9. High Dose Rate Accumulate charge in storage ring 250-1000 nC Deliver large charge in short period (~50 nS) High Dose Rates ~1013-1014 rad/sec

  10. Secondary Goals X-ray Source Bremmelstrung Radiation Inverse Compton Scattering Radiation Effects Studies Scientific Research Accelerator Physics Studies

  11. Inverse Compton Scattering X-ray Source

  12. Existing Resources Compact Injector Syncrotron 240 MeV Proton Accelertor Operated at IUCF 2000-2002 Proton Radiation Effects Studies Existing Components Dipole Magnets Power Supplies RF Cavities Vacuum Systems

  13. Phase I/II Concept Validation And Development Medical Linac Storage Ring Limited Test Area

  14. Phase III

  15. Summary • Crane Needs • Continuous Beam • High Dose Rates • X-ray Capabilities • IU Needs • Scientific Research Facility • Accelerator Physics Research

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