MOM Report Linda Coney MICE Operations Manager University of California, Riverside MICO Meeting June 7, 2010

MOM Report-Coney2 Decay Solenoid —Determined that liquid He level sensor was not working —Swapped out original sensor for new one on Friday while keeping magnet cold o Went smoothly, impurity levels remained low and steady —New sensor was calibrated and is working —Current tests planned for today – then DS operational Target —Target ran well during last two days of May User Run – no problems —Target visually inspected during shutdown o looks good —Need to sort out signals to ISIS to indicate functioning MICE target o Target group will work this out

June 7, 2010MOM Report-Coney3 Detectors —Luminosity Monitor o Data runs taken April 20 –Analysis continues —Tracker o Cooldown date & extent to be determined o Then trackers made safe and stored —CKOV,TOF0, TOF1, TOF2, KL o Data taken for calibration of TOF, KL, CKOV o STILL Need feedback as to how successful —CKOVs o Moved onto Hall air supply – humidity values dropped below accepted but have since recovered into normal —Beam Profile Monitors o Overheated again during running May 27 – not used after that o Temp readout was switched large/small – this means the small BPM in the DSA is the one overheating

June 7, 2010MOM Report-Coney4 Beam Beam Magnets —Software update done on magnet controls – May 25 o Solved problem of resetting current to zero and re-ramping o Implemented step of ~20 A at beginning/end of ramp –None hang at low current now —Tested 6 hrs w/o problems & used during running May 27/28 o There is still some communication problem that causes current to drop o Not a magnet trip – rapid reramp, but is real o Need record data/shifter pay attention to identify issue —Slew rate control of magnet ramp implemented o Ramp fairly slow – rate is being calculated by S. Griffiths —Sometimes D2 control says “OFF” when “ON” – PROBLEM SOLVED Proton absorber —Nee extra ~50mm plastic for protons in a 240 Mev/c muon beam o Geoff building addition to absorber – will install this week —Need webcam to verify configuration from MLCR – DONE & visible from MLCR

June 7, 2010MOM Report-Coney5 MLCR DAQ —Still had errors during running o Particle event mismatch errors & still contain data after readout —No problems with muon beam configuration – only ~6 particle triggers/spill —DAQ aborted on TOF0 trigger - spills with 155 particle triggers o Upgrade to new version of DATE should fix this (happens next week when JS at RAL) Error Summary —Thursday – 13 Runs attempted o 4 (31%):Good Runs > 500 pulses o 5 (38%):crashed DAQ due to too many particle triggers ~150 o 1 (8%):V1290 error – TDC problem o 1 (8%):fatal particle event mismatch o 2 (15%):magnet currents changed —Friday – 16 Runs attempted o 9 (56%):Good Runs > 500 (or 1000) pulses o 1 (6%):ISIS trip o 4 (25%):V1290 error o 2 (13%):fatal particle event mismatch

June 7, 2010MOM Report-Coney6 MICE Computing New ssh bastion is working —12 people now have accounts —Successfully connected through from outside to computers in the MLCR —X-forwarding is working —Contact Malcolm for an account – see MICE News for details Two areas of disk space are set up on PPD cluster for MICE G4MICE will be installed and available on the PPD system Database —Configuration Database is installed on new database server & web services server at RAL —Database interface is visible from control room —EPICs client now in place to read/write values set in a run —Tested EPICs client with database – successful —NEXT: run in parallel with spreadsheet during Machine Physics runs

June 7, 2010MOM Report-Coney7 Other To Do: —FNAL BPM need startup/shutdown/operating details manual - pending —Possible BLM signal from ISIS – DONE & in Application Launcher —All manuals on MICO page need date and version number - pending o Cannot tell if subtle changes or if match hardcopies in MLCR o Update hardcopies to latest version —Write Troubleshooting document – in progress

June 7, 2010MOM Report-Coney8 Run Summary May 27-28: 10,700 target pulses —Target count is at 233,750 —300 MeV/c e+ beam TOF calibration – TOF0 trigger o Th/Fri – 6,4000 pulses with ~45 particle triggers/spill —Muon beam: point on emittance-momentum matrix – TOF1 trigger o Fri – 1250 pulses ~6 particle triggers/spill —Muon beam: point on emittance-momentum matrix – TOF1 trigger o Fri – 1000 pulses ~6 particle triggers/spill —Muon beam: point on emittance-momentum matrix – TOF1 trigger o Fri – 1000 pulses ~4 particle triggers/spill

June 7, 2010MOM Report-Coney9 Run Efficiency Summary May 27-28: 10,700 target pulses —Target count is at 233,750 Total attempted Runs: 29 Runs reaching goal of 500 (1000) pulses: 13 (45%) Runs stopped because of ISIS Trip: 1 (3%) Runs stopped because of DAQ error: 13 (45%) Runs not reaching 500 but stopped for external reasons are all considered quality data. Considered quality data (ie. No DAQ error): 48% Mean pulses before DAQ error: 160

June 7, 2010MOM Report-Coney10 Machine Physics: Run Plan Sunday June 13: —16 hour Activation Study at 4V beam loss – 08:00-midnight —High losses + operational DS  high particle trigger rate o Run data for emittance, momentum matrix o TOF calibration data if possible –Will need to limit spill gate & trigger TOF1 –DATE upgrade not done before Sunday so limited to <150 particle triggers/spill o Test automatic data transfer Tuesday June 15: —Particle Rate vs Beam Loss Studies – 16:00 – midnight Wednesday June 16: —Particle Rate vs Beam Loss Studies – 16:00 – midnight —Beam Bump study —Testing of new DB in parallel with standard shift procedures

June 7, 2010MOM Report-Coney11 June/July/August: Run Organization User Run in June/July/August: —Run 5 days/week – M-F —10-12 hours/day (8am-8pm) —Personnel needed: MOM, BLOC, Shift Leader, Shifter o Shift leader has more experience and trains up new person o Novices need 1 week training shifts before official shifter —Experts/those doing the study can also be there to guide & monitor progress having worked with MOM to plan this Machine Physics 16 hour run: —Need 3 shifters to cover 16+ hours Data-taking Run: 12 hours shifter1 shifter2 MOM & BLOC

June 7, 2010MOM Report-Coney12 June-August: Run Organization Chaos & last minute changes are the enemy —Rushing during data-taking not productive —Take the time to understand each step and document thoroughly Run Plans need to be developed well in advance —Must notify MOM if studies needed —Individual experts often unaware of other planned activities —MOM can integrate into reasonable order Shifters carry big responsibility —Many things to monitor/do: o DAQ (catch errors, document, stop run) o Elog – proper documentation to recreate events o Deal appropriately with Alarm Handler o Monitor magnets – change currents when required o Watch Online Monitoring & Online Reco plots o Monitor target and beam loss o Stop/start runs o Stop/start target if/when ISIS trip or DAQ dies —MOM/BLOC not in the room – on call to answer questions —Shifter has authority to stop/start target actuation only —No changes in target depth or timing  CALL BLOC —No working on other projects (no writing lectures, talks, writing G4MICE code, modifying EPICs controls)

June 7, 2010MOM Report-Coney13 June-August: Run Organization Need to better organize breaks for food —Shifters take turns leaving for 1 hr lunch —MOM/BLOC could assist in filling in when shifters eating —Hours of cafeteria: o M-F: B (7:30-9:30), L (11:45-13:45), D (18:15-20:15) o S/S with Beam: B (7:30-9), L (12:00-13:30), D (18:15-20:15) o S/S NO Beam: B (7:30-11), No lunch, D (18:15-20:15) o Hours of R1 café: 8:30-16:00 —Plan for dinner – bring food? Finish in time to catch dinner? Water fountain will be located just outside Control Room —Avoid dehydration Data-taking Run: 12 hours shifter1 shifter2 MOM & BLOC

June 7, 2010MOM Report-Coney14 June/July/August Run Developing Global Run Plan: —User Run JUNE 22-AUGUST 12 —Machine Physics Aug —SHUTDOWN August 16 – January 30, 2011 —HARDWARE CHANGES DONE BY Friday JUNE 11 —Machine Physics studies o Activation Study o Beam Loss vs Rate o Beam Bump Study —User Run o Week1: Tues June 22-Fri June25 –3 days TOF calibration –1 day KL data o Week2: June 28-July 2: Emittance/Momentum matrix with muon beams o Week3  more emittance/momentum matrix data

June 7, 2010MOM Report-Coney15 June/July/August Run Developing Global Run Plan: NEED SHIFTERS

June 7, 2010MOM Report-Coney16 June/July/August Run Developing Global Run Plan: NEED SHIFTERS

June 7, 2010MOM Report-Coney17 The End