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Transverse emittances during Abort Gap cleaning tests 30-Sep-2010 (plots on next page)

Transverse emittances during Abort Gap cleaning tests 30-Sep-2010 (plots on next page). Bunch 1 and 1201at 450 GeV (separated by dt=abort gap) Emittance measured by: WS with acquisition gate (~10us) centered on Bunch 1 , not blind to Bunch 1201

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Transverse emittances during Abort Gap cleaning tests 30-Sep-2010 (plots on next page)

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  1. Transverse emittances during Abort Gap cleaning tests 30-Sep-2010 (plots on next page) • Bunch 1 and 1201at 450 GeV (separated by dt=abort gap) • Emittance measured by: • WS with acquisition gate (~10us) centered on Bunch 1, not blind to Bunch 1201 • BSRT with acquisition gate 25 ns changing from bunch 1 to bunch 1201 every ~10 sec • Two fills: • 1-cleaning system setup • emittance increase of both bunches while changing settings before 14:00 • strong emittance increase of bunch 1 (H and V) and bunch 1201 (V) at ~ 14:05 • 2-cleaning test with optimized settings • cleaning switched on and off at least two times (tbc by Wolfang) and no evidence of variation of the initial emittance increase rate (~linear and similar to what normally seen by nominal bunches sitting at injection)

  2. FILL 2: AGAP cleaning FILL 1: Setup

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