1 / 25

MOM Report July-October 2008

Detailed progress report detailing equipment status, problems, and solutions for the MICE project from July to October 2008. Includes actions taken, equipment updates, and safety improvements.

cgengler
Download Presentation

MOM Report July-October 2008

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. J.S. Graulich, M. Zisman, P.Kyberd, A. Bross MOM Report July-October 2008 Linda R. Coney UCR

  2. Target BM2 BM1 Decay Solenoid Current Situation: What do we have now? • Target • Beamline magnets • Decay Solenoid • Detectors • Hall MICE CM

  3. MICE Current Layout North Wall MICE CM

  4. Target • Target in beam only one working • Implications for commissioning • Much activity: • Mechanical engineering studies – assess/redesign • Vibration tests – look for modes possibly interfering w/ operation • FEA magnetic analysis • Field measurements at RAL – scan across & look for field uniformity • Surface analysis – consultation of experts • High priority MICE CM

  5. Magnets • Decay Solenoid • Not working • Coil 10 not going SC – problem is not understood • Plan to take end cap off of solenoid in shutdown – try to diagnose • Fridge problems – issue might be with the fridge, having trouble getting it to cool below ~50K • Q4,Q5,Q6 • Began having problems in September • Leak in Q4 & Q5 – pools of water in DSA • remove mirror plate • Turned DSA Quads off • Temporary fix October shutdown • Permanent fix December shutdown (Q6,Q7,Q8 also) • D1, D2 happy MICE CM

  6. Detectors • GVA1, GVA2 – getting lots of use! • TOF0 • July: installed and commissioned in front of Q7 • July: first profile seen in TOF0 when temp beam stop out • Now: installed in DSA, running, regular part of data taking • TOF1 – not here • Problems with noise in PMTs • PRIORITY • CKOV • running • Tracker – T1 good – T2 complete & ready to test • KL • July: Commissioned w/cosmics • FNAL Beam Monitors • NOT running YET MICE CM

  7. DAQ • July – DAQ upgraded to include TOF0 and KL • Online Monitoring running online now • NEW Target DAQ running • ISIS beam information on screen in MLCR • ISIS beam loss information in target DAQ MICE CM

  8. NEW • ISIS Beam Loss on monitor in MLCR MICE CM

  9. Hall • South Wall done • North Wall nearly complete • New “loft” behind North Wall • Work on floor (safety) • Fixed/Moveable Beam Stop • Electrical – Daresbury • Network • PPS • Shutdown VERY busy MICE CM

  10. To Be Done: Oct Shutdown • Decay Solenoid • Moveable beamstop • FNAL Beam Monitors • Fix Q4,Q5,Q6 • Check/Test TOF0 • Install target chiller circuit bleed valve • PPS electrical • Earths for DSA Quads • Magnet-on lights MICE CM

  11. Current Status • Capable of limited running • Upper limit on target pulses • Concentrate on front end • Beam studies • Loss information in S7, S8 • Detectors/DAQ running • Recording particle data when possible MICE CM

  12. Safety • Sept • roof of DSA complete • Access to roof • Temporary beam stop agreed • Permanent moveable beam stop completed • PPS scheduled to be done by Jan 2009 • Need improve access to DSA – interlocks • Hall is a very active place • Safety incident resulted in injury • Broken wrist and down one man for shutdown • Need training for all visitors MICE CM

  13. Physics with MICE • July: study proton/pion beam content using TOF between GVA1 and GVA2 (see talk by JSG on Sunday) • July: magnet study (see Sunday session) MICE CM

  14. Latest Physics • NEW • beam loss signals from ISIS • Study of beam loss in ISIS • ~20,000 target dips MICE CM

  15. Beam Loss MICE CM

  16. Goals: Aug-Oct 2008 • Accomplished quite a lot MICE CM

  17. Commissioning needs • Continuity of information • Develop consistent method to pass on information from MOM to MOM • Not relearn • Documentation • Contact list • Trouble shooting detectors/DAQ/beam elements • ISIS information • Exercise experiment regularly • Need regular runs • Still very much in “commissioning” stage – not “running” • Example – Wed warm-up for Saturday/Sunday • Sunday smooth(er) • Heat in hall issue for running MICE CM

  18. MICE CM

  19. MICE Step I • Target needs redesign and proof of functionality – limited number of target dips available for commissioning, beam studies, and physics • There exists a question on how many muons we will really get… • Decay Solenoid – coil 10 dead – not going SC • Problem is currently unknown – need to find problem and then fix it…costs time • Diffuser not here - ?needed for Step 1? • Q4,5,6 leaking water – not able to run • TOF1 not here & apparently not working MICE CM

  20. MICE Step II • Assuming Step I is complete, then: • Spectrometer Magnets – will get the first one by November? • Should definitely go to Fermilab for magnetic field measurements before shipping to RAL • Note: Also need to measure field in MICE hall– questions exist regarding North/South shielding wall effects on magnetic field • Tracker1 • Testing in R8 good idea and going well • Debugging occuring • DAQ implementation and firmware changes ongoing • Need to test Tracker2 in the same way • Might be able to have Step II relatively soon after running in Step I configuration MICE CM

  21. Conclusion • Very busy • Lots to do • Step I 2009 MICE CM

  22. Communication MICE CM

  23. MICE Step I • The good news is that people are working on all of the problematic components • Hall infrastructure trucking along nicely • good communication now w/Daresbury for electrical work for example • Walls going up • Floor supports being done – hopefully leads to cleaner environment in hall soon • Hopefully: • Decay Solenoid problem will be quick diagnosis w/expert from PSI and fix over Dec shutdown • Fix to leaky quads is understood • Target design/test successful • TOF1 shows up soon • Anticipate Step I for ISIS run in Feb 2008 – maybe limited target dips? MICE CM

  24. MICE Step I • More good news: • New target DAQ works & are getting ISIS beam information now • Electron beam studies have been done • What can we do now? • Beam loss studies • Verify validity of simulations • Appease ISIS & ensure running conditions • Target dip optimization • Possibly measure emittance in Step I with TOFs • Maybe start with pions and use the FNAL beam monitors instead of TOF1 MICE CM

  25. American MICE in England • Transportation • MICE van exists • Not permitted to park overnight at private location (including hotel) • We all need to get RAL Permit to Drive in order to use it • This is easy – one form, one copy of US license • Housing • Very hard to find “longer term” and expensive • Ridgeway House too expensive for ~3 month stays • MICE house becoming an option …who is interested? • Paperwork to go to England • Probably don’t need VISA • Probably DO need “business visitor” paperwork spelling out what working on and why • May involve documentation from RAL and/or US institution MICE CM

More Related