An Advanced Linear Accelerator Facility for Microelectronic Dose

Rate Studies

P.E. Sokol and S.Y.LeeIndiana University

Outline• Introduction

– NSWC Crane• Radiation Effects Program

• Crane Needs

• Advanced Accelerator Facility– Enhanced Capabilities– Improved Performance

• Summary

Strategic Systems

NSWC Crane is the leader in the Navy Strategic Systems community for failure and material analysis of space and high reliability electronics and the integration of Commercial Off-the-Shelf products.

NSWC Crane supports……. •Guidance Systems •Missile Systems •Fire Control Systems •Navigation Systems •GPS Systems •Radiation Tolerant Electronics

                                                                          

              

                                                                          

              

Thru…… •Design Modeling and Simulation •Design of Radiation Tolerant Microelectronics •Design of High-Reliability Microelectronics •Application and Integration of Commercial Off-the-Shelf Technology •Systems Engineering •Inertial Sensor Expertise •Satellite and Missile Electronics Radiation Testing •Failure and Material Analysis •Component Reliability and Quality Analysis •Component Destructive Physical Analysis •GPS Receiver Integration

NSWC Crane is assigned as the… •Leader in Radiation Tolerant Electronics •Leader in Commercial Off-the-Shelf Technology •"911" Engineering Activity for Strategic Systems Program Office

                                                                          

               Contacts to Request More Information

Radiation Effects

Solar Protons&

Heavy Ions

Galactic Cosmic Rays

Trapped Particles

Natural Environments

Man Made Environments

NSWC Crane’s Strategic Mission

support testing of electronics in various radiation environments – both manmade and natural.

Natural EnvironmentsSolar ProtonsGalactic Cosmic Rays (Neutrons)

Man Made EnvironmentsNeutronsGamma Rays

Current Crane CapabilitiesCapabilities

Dose Rate (Rad/s) 1x1012

Pulse Width (narrow) 10-50 nS

Pulse Width (wide) 1-5 uS

Beam Spot Size 40 mm

Pulse Rep Rate 10 shots/sec

Energy 40-60 meV

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

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 Staff60 Faculty, Postdocs,

students

Funding - $20M/yrIU, NSF, DOE, DODNIHState&Federal Funds

MissionResearch & DevelopmentServiceEducation

Indiana University Cyclotron Facility

RoboticsPatient Positioning,Alignment, Heavy Equipment Control

Particle AcceleratorsDesign, Construction,

Diagnostics, Computer Control, Beam Transport

Particle DetectorsDose Monitoring, Calibration, Data Acquisition, Electronics

Biomedical Equipment Development

Energy Measurement, Range Modulator, Wobbler

magnet and controls

IUCF Technical

Capabilities

Proposed Solution

Key Proposal Features:Use Storage Ring to:1.Accumulate and compress LINAC macropulses2.Eliminate RF structure induced by LINAC3.Non linear beam optics for uniform irradiation

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

Tdb 2h0 ˆ

High Dose Rate

Accumulate charge in storage ring250-1000 nC

Deliver large charge in short period (~50 nS)

High Dose Rates~1013-1014 rad/sec

Secondary Goals

X-ray SourceBremmelstrung RadiationInverse Compton Scattering

Radiation Effects StudiesScientific Research

Accelerator Physics Studies

Inverse Compton Scattering X-ray Source

Existing Resources

Compact Injector Syncrotron240 MeV Proton AccelertorOperated at IUCF 2000-2002Proton Radiation Effects Studies

Existing Components

Dipole MagnetsPower SuppliesRF CavitiesVacuum Systems

Phase I/II

Concept Validation And Development

Medical LinacStorage RingLimited Test Area

Phase III

Summary

•Crane Needs•Continuous Beam•High Dose Rates•X-ray Capabilities

•IU Needs•Scientific Research Facility•Accelerator Physics Research