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MOM Update End of Sept Run

MOM Update End of Sept Run. Linda R. Coney 05 October, 2009. Outline. Taking Data Studies Done Target Operations Progress Made. 2. Recent Data Taking Program. Since working on the DAQ last week (see VC slides V.Verguilov): Positive beam particles:

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MOM Update End of Sept Run

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  1. MOM Update End of Sept Run Linda R. Coney 05 October, 2009 Linda R. Coney – 24th September 2009

  2. Outline • Taking Data • Studies Done • Target • Operations • Progress Made Linda R. Coney – 5 Oct 2009 2

  3. Recent Data Taking Program • Since working on the DAQ last week (see VC slides V.Verguilov): • 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 Linda R. Coney – 5 Oct 2009 3

  4. DS Study • Pion Beam at 330 MeV/c – Decay Solenoid beam dynamics study • Nominal setting at 550 A (3.1T) • 9 settings higher and lower in steps of 0.15 T • 100 target pulses/point to get sufficient counts in TOF0 • Run 1121 DS current down 0.30T Linda R. Coney – 5 Oct 2009 4

  5. DS Study II – Positive Particles • Run 1123 Nominal DS current • Run 1122 DS current lower 0.15T • Run 1125 DS current up 0.30T • Run 1124 DS current up 0.15T Linda R. Coney – 5 Oct 2009 5

  6. Recent Data Taking Program II • Since working on the DAQ last week (see VC slides V.Verguilov): • Friday – switched beamline polarity • Now running Negative beam particles: • 300 MeV/c pi- : 2800 target pulses (calibrating the TOF system) • 300 MeV/c electrons - 1500 target pulses (calibration of CKOV and KL calorimeter) • 150 MeV/c electrons - 1200 target pulses (calibration of CKOV and KL calorimeter) • 330 MeV/c pi- for particle rate vs beam loss study • 50mV, 100mV, 200mV, 300mV, 400 mV, 500 mV losses – 400 pulses/point (2400) • 444 MeV/c piplus -to- muon beam - 1500 • 337 MeV/c piplus -to- muon beam – 1550 • Optimization of Upstream Beamline Linda R. Coney – 5 Oct 2009 6

  7. Recent Data – 300 MeV/c pi- • Run 1172: 300 MeV/c pi- Linda R. Coney – 5 Oct 2009 7

  8. Recent Data – 444 MeV/c pi- to mu- • Run 1176: 444 MeV/c pi- to mu- (Saturday Oct3) Linda R. Coney – 5 Oct 2009 8

  9. Recent Data – 444 Mev/c pi+ to mu+ • Run 1163: 444 MeV/c pi+ to mu+ (Thursday Oct1) Linda R. Coney – 5 Oct 2009 9

  10. Muon Particle Rate Study • An initial study of muons in TOF1 as a function of beamloss was also done using a 337 MeV/c at target pi- to mu- beamline • 100mV - 15 particle triggers/spill TOF0 - 4.2 muons/spill in TOF1 (assuming all hits are muons) • 200mV - 34 particle triggers/spill TOF0 - 8.6 muons/spill TOF1 • 300mV - 44 particle triggers/spill TOF0 - 10.7 muons/spill TOF1 • 400mV - 60 particle triggers/spill TOF0 - 16.1 muons/spill TOF1 • 500mV - 71 particle triggers/spill TOF0 - 19.1 muons/spill TOF1 Linda R. Coney – 5 Oct 2009 10

  11. Optimization of Upstream Beamline • Simulation – triangles • Data from Sunday - circles Linda R. Coney – 5 Oct 2009 11

  12. Target Performance • Continues to do well – no problems • Stopped at 50,000 pulses at end of running Thursday • Sat/Sun – went on to final count of 62,650 • Target depth • Beam loss over time • 200 MeV/c pi+ • Inspected Sunday Linda R. Coney – 5 Oct 2009 12

  13. Target DAQ • Target DAQ • Moving closer Linda R. Coney – 5 Oct 2009 13

  14. Target Run Information • Beam Loss/target position pi- to mu- beam • 611 mV BCD = 28.4 Linda R. Coney – 5 Oct 2009 14

  15. Target Run Information II • Beam Loss/target position/dip timing pi- to mu- beam (Sat) • 611 mV BCD = 28.7 Linda R. Coney – 5 Oct 2009 15

  16. Detectors • KL installed/bolted to TOF1 • Incorporated into DAQ again • Problem with one FADC module – 6 channels on top of detector • TOF0 ch. 17 PMT still not reading out • All FADCs (except PMT 17) look good • Plots: 300 MeV/c electrons • FNAL BPMs not running now • Hardware problem probably – need check into veto/load signals FADCs PMT 17 PMT 18 Linda R. Coney – 5 Oct 2009 16

  17. Recent Data: 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 Linda R. Coney – 5 Oct 2009 17

  18. Operations I • eLOG • Moved to IIT • Works great! Fantastic! • Temporary solution while work w/RAL networking to sort out heplnw17 • Magnets: • D2 • magnet H2O trips, Willie increased water flow slightly on access to DSA Wed • No problems since • Q4 • MPS water flow trips – Thursday every 45 minutes during running • Swapped out flow sensor Friday • Now ok – no trips over weekend • Danfysik will replace all flow sensors • Polarity switched • Capacity of distribution board checked • Ok – need few new fuses – may still want upgrade • Slow ramp of magnets – • Software written • Tested and did not work – ongoing • Beamstop not always cooperative – possible faulty controller connection Linda R. Coney – 5 Oct 2009 18

  19. Operations II • PPS • Need rack to RAL • John Alexander to RAL to integrate DSA into ISIS system – TBC • Shifters • Many thanks to my shifters • especially Pierrick Hanlet, Henry Nebrensky, and Ray Gamet • here for 1 week each! • Working very hard for MICE • Alarm Handler • Still need to sort out sound card • Need Decay Solenoid PVs into alarm handler to assist monitoring • Need DAQ variables into Alarm Handler • Need to understand ISIS beam loss vs MICE in MLCR • What exactly defines our limits? Linda R. Coney – 5 Oct 2009 19

  20. Next • ISIS shutdown Oct 5 – Nov 1 • Machine Physics period starts Nov 2 – need shifters • User Run ~Nov 9 through Dec 20 – need shifters • Next User Run – Feb/March 2010 • Calibrate detectors • Study effect of proton absorber? Build during shutdown • Install luminosity monitor Linda R. Coney – 5 Oct 2009 20

  21. Conclusions • Within the last month: • We are running again • New target • Higher loss limits • Decay Solenoid Operational! Routinely used. • Detectors working • Good NEWS – • Learning a LOT • Last year < 50 particles/spill, Now: averaging 160 – 200 • Running with negative or positive particles • We have seen MUONS! Linda R. Coney – 5 Oct 2009 21

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