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PREX II Vacuum Box, Shielding and Septu m Design Status

PREX II Vacuum Box, Shielding and Septu m Design Status. Alan Gavalya 11 APR 14. Septum Mount w/ Absorber. Vertical Section. Horizontal Section. Septum Magnet. Septum Status. PREX-II utilizes the eight large coils in the existing Septum Magnet Existing Magnet has one large coil damaged

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PREX II Vacuum Box, Shielding and Septu m Design Status

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  1. PREX II Vacuum Box, Shielding and Septum Design Status Alan Gavalya 11 APR 14

  2. Septum Mount w/ Absorber

  3. Vertical Section

  4. Horizontal Section

  5. Septum Magnet

  6. Septum Status • PREX-II utilizes the eight large coils in the existing Septum Magnet • Existing Magnet has one large coil damaged • Need to replace damaged coil, estimated at $10k, drawings exist, 7 to 9 months from procurement to delivery of coil.

  7. Vacuum Box w/ Collimator

  8. Tungsten Collimator • Inner cylinder • 30% Cu-70% W • Water-cooled slug with Cu sleeve brazed, similar to Qweak collimator • Outer box Tungsten • Power deposited: • Inner cylinder 25.7 W/mA • 70mA results in 1800W • Outer box 3.1 W/mA

  9. Tungsten Collimator • “Rough” calculation on initial design gives max temperature of Cu-W cylinder at 57.8 C • With use of Dynaflux pump-cooler system at max flow of 4 GPM • Recommend FEA simulation be done for more accuracy • Need request of 3-4 weeks to analyze

  10. Slow and Steady Pace Questions?

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