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Status of Tev IPMs June 10, 2009

Status of Tev IPMs June 10, 2009. Andreas Jansson. News. Tried turning off select ion pumps Signals strength improved somewhat Signal fluctuations still there Took vertical tbt data at injection No obvious mismatch, detailed analysis pending

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Status of Tev IPMs June 10, 2009

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  1. Status of Tev IPMsJune 10, 2009 Andreas Jansson

  2. News • Tried turning off select ion pumps • Signals strength improved somewhat • Signal fluctuations still there • Took vertical tbt data at injection • No obvious mismatch, detailed analysis pending • Found almost 1V ripple on 3.3V supply to HIPM timing card • Replaced power supply • Timing jitter now essentially gone IPM status

  3. VIPM IPM status

  4. HIPM (w new power supply) IPM status

  5. Shutdown plans • Before beam disappears, do reference measurements • In particular with horizontal system • Bake ion pumps • Hopefully get rid of N2 saturation • Run tests with internal calibration source • May give a hint on the cause of signal strength fluctuations IPM status

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