R Corsini 27 Aug 2004 CTF 3 RESULTS

R. Corsini, 27 Aug 2004 CTF 3 RESULTS – 1 ST RUN 2004 (7 th JUNE – 16 th JULY) Outline • • • Review of planned strategy, schedule and objectives Main results Overview of run history & main problems encountered What has been left out… Highlights on hardware, beam studies and 30 GHz production

STAGES R. Corsini, 27 Aug 2004 • Several “stages” depending on the dump where the beam is sent. • Allows operation in parallel to RF conditioning 1 2 3 4 2 1 Need MKS 02 & MKS 03 3 Need MKS 05 & MKS 06 4 Need MKS 11 & MKS 12

SCHEDULE 1 R E S E R V E 2 3 HB R. Corsini, 27 Aug 2004 FT RC HB 4 FT RC

R. Corsini, 27 Aug 2004 CTF 3 COMMISSIONING PROGRAM 1 st RUN (7 th JUNE – 16 th JULY) Main Goals: • • • Commission hardware & software modified since last year ( up to girder 8 ) Set-up beam transport (power mode) through PETS line Check 30 GHz power production in PETS line Commission new hardware (after girder 8) Nominal beam transport to dump in girder 13

30 GHz RF POWER PRODUCTION Beam transport in PETS line – final results Expected power from current measured before PETS (F=1) R. Corsini, 27 Aug 2004 18 July 2004 Expected power from current measured after PETS (F=1) Measured 30 GHz power

NOMINAL BEAM TO DUMP 13 INJECTOR MAGNETIC CHICANE SPECTRO 7 R. Corsini, 27 Aug 2004 PETS LINE DUMP 13 I [A] x, y [mm] Aug 2003 Nov 2003 July 2004 Nominal current – 3. 5 A z [m]

RUN OVERVIEW NOMINAL RF in 02, 03 MACHINE CLOSED 0. 4 0. 2 A PETS 0. 4 A , 90% PETS FIRST BEAM R. Corsini, 27 Aug 2004 FIRST 30 GHz POWER NOMINAL BEAM TO DUMP 13 1 A , 70% PETS 3. 3 3 A PETS Problems with water distribution, leaks etc. . Problems with MKS 06 (controls, power supplies, breakdowns…) and with MKS 11 (breakdowns) 2. 5 MW

(Some) activities during RF conditioning R. Corsini, 27 Aug 2004 RF pulse compression system: 1. 2. 3. Signals calibration (MW scale) Remote temperature control RF pulse shaping not yet completed ? OK Magnets: 1. 2. Check stray fields around gun (solenoids on) Polarity check 3. Others: 4. 5. Set-up software interlocks … OK OK (but not everywhere…) OK ?

STAGE 1 1 1 R. Corsini, 27 Aug 2004 3 2 4 6 5 7 Modified hardware & software, instrumentation: 1. 2. 3. 4. 5. 6. 7. Gun pulser timing (short pulse length) BPEs increased bias (avoid charging-up & signal drift) MTV 165 CCD camera, Proxitronic control PB 1 disconnected BPR 290 ADC calibration, waveguide MTV 440 (spectrometer) Segmented dump in spectro NO Tried – does not work OK , NO OK NO, OK OK OK Beam studies: 1. Beam tranport in solenoid (behaviour of corrector 120, elliptical beam/coupling, beam oscillations) NO

STAGE 2 1 4 2, 3 R. Corsini, 27 Aug 2004 5 2, 3 7 Modified hardware & software, instrumentation: 1. 2. 3. 4. 5. 6. 7. BPR 475 ADC calibration, waveguide WCM 490, WCM 725 (influence of corrector, dep. on position) Machine protection system (based on WCMs) MTV 500 MTV 730 MTV 750 (spectrometer) Segmented dump in spectro 6 NO, OK NO ? First tests OK OK Beam studies: 1. 2. 3. 4. Transverse optics (re-match from last year quad scans, new quads scans in MTV 730, iteration…) Identify RF crest (beam loading vs. BPR wguides) + bunch compression Establish PETS pilot beam (200 m. A, 200 ns) Establish power mode beam (minimum bunch length) Quad scan only NO Not full study OK OK (not max 3 GHz power)

STAGE 3 R. Corsini, 27 Aug 2004 1 2 3 1 New hardware & software, instrumentation: 1. 2. 3. BPMs 115, 240, 280 BLM system 30 GHz signal acquisition OK OK OK Beam studies: 1. 2. 3. 4. 5. Set-up dispersion in PETS line (BPMs) Pilot beam momentum optimization (clean transient in chicane, minimize transient from MKS 05 & MKS 06, measure spread in BPM 115) Pilot beam through PETS Raise current, power mode beam through PETS (monitor vacuum, 30 GHz power, BPMs, BLMs) Beam phase swing for pulse compression OK (qualitative) Not complete OK OK NO 1

STAGE 4 R. Corsini, 27 Aug 2004 2 ? 1 1 3 Modified hardware & software, instrumentation: 1. 2. 3. BPMs 990, 1090, 1190, 1290 New BLM chambers ? Extend automatic steering ? OK Tested – did not work NO Beam studies: 1. Transport nominal beam to final dump OK

AUTOMATIC BEAM STEERING 1 28 June 2004 Steering also in solenoidal region R. Corsini, 27 Aug 2004

AUTOMATIC BEAM STEERING 2 30 June 2004 Steering also in PETS R. Corsini, 27 Aug 2004

RF PULSE COMPRESSION – PHASE PROGRAM R. Corsini, 27 Aug 2004

SEGMENTED BEAM DUMP R. Corsini, 27 Aug 2004 16 July 2004 – during quad scan Full beam Transient

QUAD SCAN - EMITTANCE 16 July 2004 QDC 705 Reference plane QFC 710 MTV 726 R. Corsini, 27 Aug 2004

MAD MODEL RESULTS – PETS LINE Running conditions of 16 July 2004 – before quad scan – E = 43. 8 Me. V I [A] s. X s. Y with dispersion ( sp = 1% ) Z [m] R. Corsini, 27 Aug 2004

30 GHz RF – PETS “CONDITIONING” R. Corsini, 27 Aug 2004