Linda R. Coney – 24th September 2009 MOM Update Linda R. Coney 24 September, 2009

Linda R. Coney – 24 Sept 2009 Outline  Last VideoConference  Target  Taking Data  Operations  Continued Run Plan  Progress Made

Linda R. Coney – 24 Sept 2009 At Last VC  End of August Shutdown  MICE getting ready to take data for first time in 9 months  New target reassembled, tested and in ISIS  Beamline tested  Getting detectors ready  MICE Rehearsal…  Since then:  1 week of Machine Physics  10 days of User Run  MICE again running a target in the ISIS beam  TAKING DATA!

Linda R. Coney – 24 Sept 2009 Data Taking Program  Machine Physics: u Run experiment while testing target  Pion beam at 333 MeV/c  Proton beam at 333 MeV/c  Muon beam at 252 MeV/c with Decay Solenoid and w/o  ISIS activation study  Beam Loss vs Particle Rate Study  Use GVA1, TOF0, TOF1, FNAL BPMs, CKOVs, and now KL  USER RUN: u Working on DAQ issues s Running at higher particle rate – DS operational, high loss levels in ISIS s Necessitates changes in DAQ to accommodate high particle rate u Pion beam at 330 MeV/c – Decay Solenoid beam dynamics study s Nominal setting at 550 A (3.1 T) s 9 settings higher and lower in steps of 0.15 T s Only required ~60 target pulses/point to get sufficient counts in TOF0

Linda R. Coney – 24 Sept 2009 Target Operations & Data Taking  Pulsed 50,000 in test stand in R78  Installed in ISIS u Run for 12,000 pulses..inspected – PASSED u Run for 10,000 pulses..inspected – PASSED u Run for 20,000 pulses..inspected – PASSED  Target is working beautifully – NO problems  Target Operation: u Machine Physics – 5 days of MICE running u User Run – 3 days  Target operation Studies u Search for ideal timing wrt ISIS cycle u Search for ideal depth into beam u Found edge of beam at injection for purposes of understanding what we need to avoid on the outswing of our target u Took data with modified voltages on capacitor bank u Studies with ISIS running at 50 Hz (Normal User Run conditions)

Linda R. Coney – 24 Sept 2009 MICE IN ISIS  Without and with MICE Target at 2V

Linda R. Coney – 24 Sept 2009 Target Operations  Target I stability from 5 Sept 2009  All plots to follow show characteristic two peaks (exact capture position). The two peaks are always the same distance apart mm - corresponding to the resolution on the optical readout of 0.15 mm. The widths of the peaks has not changed since the start of running in ISIS on 5/9/09

Linda R. Coney – 24 Sept 2009 Target Operations II  Target I stability from 16 Sept 2009  deltaD for 5 th =.13 and for 16 th =.12  Running at same depth – consistent behavior

Linda R. Coney – 24 Sept 2009 Target Operations III  Beam Center Distance over Evening shift Wednesday  Shows the time series for the last run, patchy because we were stopping and starting the target a lot.  The important thing is the BCD consistency.

Linda R. Coney – 24 Sept 2009 Target Operations IV  Beamloss (in Sector 7) for the entire Activation Study run (13 hr)  Note that there do seem to be two distinct peaks although Paul has only fitted a single gaussian.

Linda R. Coney – 24 Sept 2009 Target  Target Group at MICE

Linda R. Coney – 24 Sept 2009 MICE Timing  New tool to understand MICE timing wrt ISIS

Linda R. Coney – 24 Sept 2009 Taking Data  MICE at work

Linda R. Coney – 24 Sept 2009 Sept 6 Data  Run 945 Sept pion beam 333 MeV/c with 400mV losses  protons

Linda R. Coney – 24 Sept 2009 Sept 6 Data  Run950_Sept062009_protonBeam333MeVc_D2nominal

Linda R. Coney – 24 Sept 2009 Sept 12 Data Preliminary: Beam Loss vs Particle Rate Study  first draft,  means of distributions judged by eye, no error calcs, etc  full analysis is to follow  rates of beam loss seem very high because not yet been calibrated to nominals u last time the reduction factor was about 0.4, PH thinks more this time.  unsure at present as to what units have for the GVA1 (why are no units for them, again to be sorted out for full analysis)

Linda R. Coney – 24 Sept 2009 Beam Loss vs Particle Rate  Not the full story  Problems with GVA1 trigger  Problems with GVA1 detector at very high rates  Need to rerun study – plan to use TOF0 as counter

Linda R. Coney – 24 Sept 2009 Beam Stop Open!  Remote operation of Beam Stop

Linda R. Coney – 24 Sept 2009 Sept 10 Data  Run 972 Sept pion beam 333 MeV/c with 500mV losses  protons

Linda R. Coney – 24 Sept 2009 Sept 10 Data  Run977_Sept102009_piBeam333MeVc_400pulses

Linda R. Coney – 24 Sept 2009 Sept 12 Data  Run1006_Sept122009_pimuBeam MeV/c 120 pulses

Linda R. Coney – 24 Sept 2009 Recent Data  Beginning to calibrate TOFs  Last year’s data……………..This year…  Making progress..need more data..

Linda R. Coney – 24 Sept 2009 Operations I  Updated documentation - DONE  Some trips of beamline magnets u usually trip on power supply water flow  DAQ – See talk by Vassil u having some trouble with new fADCs u Possible timing issue with TDC and fACD signals u Possible fix this week  “invalid” alarms problem – FIXED!

Linda R. Coney – 24 Sept 2009 Operations II  Electrical u Sent list of typical magnet current combinations to Daresbury u Calculations being done to determine if running near limits of distribution box on wall  Shifters u New list of instructions for novice shifters – Paul Harrison will upload to MICE shifter schedule website u New shifter folder with operating instructions and safety class requirements u Shifters need to be prepared before arriving in MICE LCR for shift! s Big responsibility, full time attention required, mistakes could be critical  eLOG u Still hanging and making operations difficult u Need it to work smoothly u Moving to heplnw17 this week – mirror on MICE website from IIT  Slow ramp on beamline magnets u In progress

Linda R. Coney – 24 Sept 2009 Next  Run Plan for this week: u Commission Decay Solenoid – DONE s Pion optics - Scan through decay solenoid current settings s Compare beam profile in detectors to simulation u Commission FNAL BeamProfileDetectors - DONE u Commission DAQ s Adjust to higher particle rate s Change TOF0 trigger to AND of two planes instead of OR s Set up TOF1 trigger – necessary due to increased particle rate s Figure out why TDC and fADC information for particles not saved appropriately s Commission TOF1 and KL DAQ s Check with Analysis code u Calibrate TOF system s 330 MeV/c pion beam, 150 MeV/c e+ beam, 100 MeV/c e+ beam u Optimize Upstream Beamline s Marco and Chris Rogers s Optimize Q1-Q3 s Move quads to maximize rates in detectors

Linda R. Coney – 24 Sept 2009 Conclusions  Within the last month:  We are running again  New target  Higher loss limits  Decay Solenoid Operational! Routinely used.  Detectors working  DAQ work ongoing u NOTE: Last year < 50 particles/spill, Now: over 200 u This is why we need to spend time working on the DAQ  Good NEWS – u Learning a LOT u We have seen MUONS!