RF Support
Presentation by Ralph Bechtold

1. Purpose of the RF
2. APS Storage Ring RF System
3. Major RF Components
4. Group Responsibilities
5. Regular Maintenance
6. Systems Monitoring
7. Scheduling
8. Future Plans

What Does the RF Do?

• Accelerates the beam
• Booster
  • Accelerates beam to 7 GeV
• Storage Ring
  • Replaces lost energy

APS Storage Ring RF System

• Consists of four sectors 36, 37, 38 and 40
  • Each sector contains four single cell cavities
• The four sectors are powered by two 1-MW klystrons for operation at 100-mA
• The storage ring RF typically provides roughly 6 MeV/turn

Major RF Components

• Klystron
  • Klystron Garage
  • Inside Klystron Garage
• Waveguide
  • Typical Waveguide Route
  • Waveguide above the tunnel sector 40
  • Waveguide transition
• Input coupler
  • Drawing of transition and coupler
  • Coupler installed in a cavity
• 352MHz storage ring cavity
  • Storage Ring Cavities
  • Booster Cavities

ME Group Responsibilities to the RF Group

• Tuners
  • Storage Ring Tuner
  • Damaged Tuners
• Input couplers
  • Cross Section of S.R. Input Coupler
  • S.R. Input Coupler
  • Damaged ceramic window
• RF test stand
  • Test stand control center
  • Inside the test stand
• Waveguide safety shutter
  • Safety shutter
  • Shutter test setup
• Maintenance and monitoring of mechanical systems

Regular Maintenance

• Lubrication of tuner drive assembly
  • Tuner Drive Screw
• Visual inspection of components
  • Coupler Contact Ring
  • Arc damaged transition
  • Arc damaged contact flange on input coupler
• Replacing blower motors and filters
  • Blower system
• Calibration and swapping of I.R. detectors
  • Land infrared thermometer
• Water systems
• Honeycomb Material
  • Honeycomb Material

Systems Monitoring

• Epics screen 1
• Epics screen 2
• Cavity component temperature diagnostics (table)
• Cavity component temperature diagnostics (photo)

Scheduling

• Proposed Schedule FY2001

Plans for the Future

• Test stand development
  - Coupler conditioning and development
  - Tuner conditioning and certification
  - Testing of new components
• New components
  - E probe HOM damper
  - H loop HOM damper
• Preparations for higher current
  - New couplers
  - New conditioning techniques