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MOM Report + RUN PLAN

MOM Report + RUN PLAN. m. apollonio – Imperial College. MOMs since CM24 …. http://mice.iit.edu/cm/cm24/agenda/cm24_tsenov_momreport.ppt. http://mice.iit.edu/vc/vc121/vc121_torun_momreport.pdf. http://mice.iit.edu/vc/vc123/vc123_graulich_momreport.ppt.

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MOM Report + RUN PLAN

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  1. MOM Report + RUN PLAN m. apollonio – Imperial College MICE CM25 - RAL

  2. MOMs since CM24 … http://mice.iit.edu/cm/cm24/agenda/cm24_tsenov_momreport.ppt http://mice.iit.edu/vc/vc121/vc121_torun_momreport.pdf http://mice.iit.edu/vc/vc123/vc123_graulich_momreport.ppt http://mice.iit.edu/vc/vc124/vc124_ellis_momreport.ppt http://mice.iit.edu/vc/vc125/vc125_coney_momreport.ppt MICE CM25 - RAL

  3. RUN (Sept/Oct) Shut Down ready to RUN (Oct/Nov/Dec) • Get ready for User’s Run • Dry Run • check main functions • TGT/DAQ/Detector check • beam loss study • TOF0,1 calib runs • Q1-2-3 optim (again) • OnLine Reconstruction • (e,P) • back to (+) polarity • proton absorber • very successful period ! • BL operated at full steam • beam loss at high rate • ACTIVATION study (*) • DATA both for BL • commissioning • and detector calibration • Q1-2-3 optimisation • DKsolenoid scan • many beamlines tried • switched to (-) polarity • for the first time … • - introducing the Beam Line On Call expert (BLOC) • (*) some gate/trigger problems. New measurements required • Dedicated to • construction/tests • Target progress • EPICS / Ctrl • proton absorber • luminosity monitor • TOF0,1 calibration • KL, CKOV calibration • Elog ready to migrate to heplnw17 (RAL permission obtained) • preparation for incoming • run machine physics u s e r s r u n MICE CM25 - RAL

  4. IMPORTANT ANNOUNCEMENT ! ! ! Hi all,I spoke to Dean regarding our shifts this week:(i) There was a water failure on the Linac yesterday so the machine isstill not on. Tonight's shift is at risk.(ii) Dean couldn't find shift cover for Saturday so we will be limitedto 1V on Saturday. He will cover the shift on Friday so we can get up to4 V for the high intensity study on Friday. We should plan accordingly.I will probably see you later so we can talk then.Regards,Chris MICE CM25 - RAL

  5. RUN TIME (Sept / Oct 5th) MICE CM25 - RAL

  6. target installation and tests Summary of Sept / Oct • Target drive installed in August shutdown • Timing & depth scans during ISIS start-up to explore edge of beam • Operation in ISIS MD (50 Hz/32) and User Run modes • Studies of different accelerations (drive voltages) • Runs at increasing target depth, producing ISIS beam-loss 0.1, 0.2, 0.3, 0.4, 0.5, 1 and 2 V • (last year’s maximum for prolonged running was 50 mV) • Target stability checked over long runs and between runs • 62,650 pulses to date (inspections after 12, 22 & 42 k pulses) • Routinely providing particles for beam-line and detector studies MICE CM25 - RAL

  7. DK solenoid • Good News! • After MLI insulation DKsolenoid proved its stability (successful soak test in summer) ! • DKsolenoid has been ROUTINELY used during all previous data taking !! • The beamline is complete !!! MICE CM25 - RAL

  8. So we need a BeamLine On Call expert !? MICE CM25 - RAL

  9. TOF Calibration • Beginning to calibrate TOFs • Last year’s data……..This year… • Making progress..need more data.. 2009 330 MeV/c g 2008 2009: 300 MeV/c more statistics g MICE CM25 - RAL

  10. Rate vs Loss in September … Dipping at 2V NO target MICE CM25 - RAL

  11. BCD = • Beam Centre Distance • Exploring the beam edge • Increased depth = increased beam-loss • Stable operation > 13 hours 0.2 mm (c.f. strike of 38 mm) MICE CM25 - RAL

  12. Beam Loss as a function of time • Monitor depth and BL7 • Target dipping waveform MICE CM25 - RAL

  13. 333 MeV/c pi+ beam TOF1 TOF0 Single-channel ToF spectra p MICE CM25 - RAL

  14. 444 MeV/c pi+ to mu+ beam Proton contamination ranges out muons! MICE CM25 - RAL

  15. 444 MeV/cpi- to mu- beam Excess in TOF0 largely eliminated! muons! MICE CM25 - RAL

  16. DK solenoid scan … Run 1121 DS current down 0.30T Run 1122 DS current lower 0.15T M. Rayner’sTofMonitor Run 1124 DS current up 0.15T Run 1125 DS current up 0.30T MICE CM25 - RAL 5

  17. 330 MeV/c –beam • reconstructed TOF tracks vs beam loss 500 mV 100 mV MICE CM25 - RAL

  18. data MC nominal config. Q1-Q2-Q3 scan – US beamline optimisation • Q1-2-3 varied from nominal value • Charged particles counted downstream of DKsolenoid (GVA1) • Compared to MC • Charged • p-, m-, e- ANALYSIS MEETING TONIGHT … charged p- m- e- MICE CM25 - RAL

  19. Breakdown of typical RUNS in September / October • Positive beam particles: • 300 MeV/c pions - 4000 target pulses (translates to about 330,000 particles used for calibrating the TOF system) • 250 MeV/c pions - 350 target pulses (also for TOF) • 200 MeV/c pions - 450 pulses (also for TOF) • 300 MeV/c positrons - 1500 target pulses (calibration of CKOV and KL calorimeter) • 150 MeV/c positrons - 1200 target pulses (calibration of CKOV and KL calorimeter) • 330 MeV/c pions for study of Decay Solenoid effects on beam optics - 2000 pulses • 444 MeV/c piplus -to- muon beam • to understand beam optics for producing muons - 500 pulses • Pion beam at 330 MeV/c – Decay Solenoid beam dynamics study • Nominal setting at 550 A (3.1 T) • 9 settings higher and lower in steps of 0.15 T • Only required ~60 target pulses/point to get sufficient counts in TOF0 • Negative beam particles: • 444 MeV/c piminus -to- muon beam • Q1-2-3 scan to optimise the UpStream part of the line MICE CM25 - RAL

  20. STOP (SD: Oct 6th / Nov 3rd) MICE CM25 - RAL

  21. target progress Shut Down • T2 side forces due to non-simmetries in the stator coils? • a tough device, a tremendous effort !!! • yet we need that bit to have a completely reliable system … • T1 operated and BCD stability checked (400 shots) to spot possible deviations from normal behaviour (MICE-Note 270) • T3 development in progress • See next talk by Paul … MICE CM25 - RAL

  22. miscellanea Shut Down • EPICS • Neutron monitor from MICE LCR • Some little bugs fixed (sound alarm from ALH) • Luminosity Monitor … a near miss! • Installation postponed to next SD (practical reason) • Location identified: need to finalise cabling • REMINDER: installing in the ISIS vault is not ‘go & do it’ • preparation & docs • Hall Infrastructure MICE CM25 - RAL

  23. MICE CM25 - RAL

  24. Luminosity Monitor Shut Down • Identifying “best position” • (1)-(2)-(3) are all ~20m routing from the synchrotron • Paul’s best choice • ~10 m from TGT • ok close to wall and D1 • I reckon (3) is the best match • (1) has too high (rate) • (2) is past the ring (does ISIS like it?) ~20m 4.3 m 2 1 >8 m 6.3 m 3 3 ~20m MICE CM25 - RAL

  25. wire control proton absorber Shut Down • design completed (Geoff) and device installed on Friday 30th (Roger) • guillotine with 3 polyethilene blades (14, 29, 54) mm covering a range of values [14,29,…,97]mm • manually operated from the turret: no access to DSA, max flexibility! proton absorber GVA1 MICE CM25 - RAL

  26. READY TO START AGAIN a run plan for the month and half to come… MICE CM25 - RAL

  27. remember remember …the 6thof November running Nov/Dec 1 2 3 4 MICE CM25 - RAL

  28. …run plan continued running Nov/Dec 5 6 7 Dean Adams Kicked Orbit test ? 8 MP Dean Adams Kicked Orbit test ? MICE CM25 - RAL

  29. running Nov/Dec • Quick dry run to rule out possible stoppers (MOM, JL, AD) • Check BL monitoring ok • Conventional BL control via EPICS ok • HV for detectors ok • Neutron monitor via EPICS ok • DAQ (JSG) • First tests tonight • TARGET (PS) • Re-establish basic operations tonight • Run Plan for Beam Loss study delivered (Nov 6th) • Permission to push losses to 4V … with strict control from ISIS CR machine physics tests MICE CM25 - RAL

  30. IMPORTANT REMINDER ! running Nov/Dec • MOM / shifter need to remember that • operate T1 for 5000 pulses / 8h (whichever comes first) • do a Target Integrity Test (TIT) • If the test is passed we can get permission for other pulses • Inspect T1 window every 50000 pulses • Compile Elog AND Run Conditions Summary MICE CM25 - RAL

  31. PC Windows / MICE LCR MICE CM25 - RAL

  32. Run plan: detailed running Nov/Dec 1 Nov 10th • Q1-2-3 scan • Rationale: find the best 1st triplet configuration to produce PI (then MU) • Vary 1-2-3 together and/or one by one • Identify a stable configuration • Check results vs simulation u s e r s r u n MICE CM25 - RAL

  33. TOF0,1 calibrations running Nov/Dec 2 Nov 12th • Reserved for extra calibration of TOF0 and 1 • Typically electron (pion) runs at • 100, 150, 300 MeV/c • Any request from Cherenkov ? MICE CM25 - RAL

  34. (e,P) matrix running Nov/Dec Nov 17th • Use TOF0,1 to characterize emittance / momentum of the beam • In principle extrapolate to any position: say the diffuser • Set of optics optimised to produce (a,b) and e as required to match MICE step II+ • So far an exercise of optimisation based on g4beamline • Is it realistic? 3 4 MICE CM25 - RAL

  35. OnLine Reconstruction running Nov/Dec 5 Nov 23rd • Two days required • Set up and prepare the system • Push it to high rate and check its limit MICE CM25 - RAL

  36. be positive! proton absorber tests running Nov/Dec • A series of runs with POSITIVE particles • Different pimu optics (at several P) • Check effects of proton absorption • Monitor beam shape and rate (TOF0,1 – Fermilab BPM, GVA1) • (e,P) tests with POSITIVE beam • Dean Adams’ kicked orbit study (date to be decided) 6 Dec 4th 7 Dec 7th 8 Dec 14th MICE CM25 - RAL

  37. Hi KenI’ ve come up with a set of orbit changes in the ring that could (if theywork) steer the beam away from the target  at < 8 ms by up to 10 mm.Then steer to the target from 8-9 ms by up to 10 mm and holding steadyfrom 9-10 ms.  This should hopefully give you a more beneficial spilltime, deeper dip potential and save us some unnecessary beam loss.  Iwill try to produce the orbits at some point during startup if there istime and then we could possibly have a go for real if your in agreement.Dean 0 8 9 10 ms 10 mm Beam Orbit MICE CM25 - RAL

  38. Summary • MICE took data during all September to beginning of October after a (forced) stop of nearly 9 months • successfully operated T1 for ~62K pulses • beamline fully operated and being commissioned • DAQ exercised • Detector exercised and calibrating MICE CM25 - RAL

  39. acknowledgements • Thanks to … • Linda for the nice DATA! • Pierrick for subbing me! • Willie for all the hard work and presence! • All the shifters who kindly volunteered from now to December • Thanks, last, to Giorgio for taking over good luck !!! MICE CM25 - RAL

  40. TONIGHT !!! M . O . M . R E P O R T MICE CM25 - RAL

  41. Beam Centre Distance stability Dbcd=0.12 mm (stable over >10 days) MICE CM25 - RAL

  42. D1 ISIS synchrotron p! Q3 Q2 Q1 Target Upstream Beam-line MICE CM25 - RAL

  43. MICE CM25 - RAL

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