1 / 14

L1Calo Run Overview Activity Summary and Shutdown Planning

A detailed summary of L1Calo operational activities, performance highlights, upcoming shutdown planning, running schedule, and technical stops. Includes achievements, special runs, bunch evolution, and maintenance tasks.

asly
Download Presentation

L1Calo Run Overview Activity Summary and Shutdown Planning

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. L1Calo Run OverviewActivity Summary and Shutdown Planning Bruce M. BarnettRutherford Appleton Laboratory

  2. Overview Since Last Meeting (2) Before Next Meeting Running Schedule Bunch Evolution (3) Year-End Shutdown Shutdown Activities (2) On the To-Do List Overview Bruce Barnett- RAL/STFC

  3. Rhythm: Smooth triggering Module replacements 2 PPMs, 1 CMM A handful of MCMs Enhancements DB, calibration, monitoring, software, operational Increasing Luminosity Machine commissioning Technical Stops ~ 6 week periodicity Tests, scans, calib updates, checks etc… Um And to add spice a little bit of noise from our much appreciated calorimeter friends! Since Last Meeting (1/2) Bruce Barnett- RAL/STFC

  4. Achievements Operational Highlights: FCAL Mapping Calibration FJ triggers Beam Optimised Timing OVP Timing work And lots more … Performance Highlights: Illustrated by a lot of very nice work from a great offline crew! (this meeting) Since Last Meeting (2/2) Bruce Barnett- RAL/STFC

  5. Special Runs Timing: Peak Mapping Larg Layer timing Alan’s List What are the priorities Before 2011 For 2011 A lots more lovely physics Before Next Meeting Bruce Barnett- RAL/STFC

  6. Running Schedule Bruce Barnett- RAL/STFC

  7. Bunch trains with 150 ns spacing The number of bunches per LHC injection will be increased in time Start probably with 4 bunches/LHCinj, then 8, then 12, then 24, then 36 (Brennan & team’s plan) number of identical LHC injections per beam should be a multiple of 4 (main bunch series), plus one for ALICE LPC, 13 Sept. http://indico.cern.ch/conferenceDisplay.py?confId=106926 Bunch Evolution (1/3) Bruce Barnett- RAL/STFC

  8. Bunch Evolution (2/3)(one possibility) always a multiple of 4 actual PS trains IP2 bunches (=collisions)

  9. Bunch Evolution (3/3)( if 12-bunch injection available from start…) * change manually the cycle, or give 1x12 to IP2 as well always a multiple of 4 actual PS trains IP2 bunches (=collisions)

  10. Planned End of Run: December 6, 2010: Open Opening/Closing “8 weeks is the best that can be done, giving access on one side only” Access to Barrel and End cap calorimeters granted for 8 days (including January 1st !) currently [Aug 31 open EB] side C is the baseline Close: 28/01/2011 Year-End Shutdown Detail of the access to the calorimeters Start after To+23d Bruce Barnett- RAL/STFC

  11. December 2010 Weeks 6th , 13th Available? L1Calo system tests, maintenance ATLAS Combined tests Week 20th Shutdown activities T/DAQ infrastructure, cooling, etc CERN Closure 2010: 22 December – 4 January Shutdown Activities (1/2) Bruce Barnett- RAL/STFC

  12. January Planning Week of 3rd Interventions Cooling, Power, etc Week of 10th Continued Interventions Restart T/DAQ infrastructure Check crate cooling Week of 17th L1Calo updates, maintenance Week of 24th Calorimeter Recommissioning Shutdown Activities (2/2) Bruce Barnett- RAL/STFC

  13. CMMs Bogus Temperature reading DCS trips Firmware issues Non-algorithmic JEP, CP Tau System Mergers Loss of firmware (replaced CMM) CAN Updates CAM Calorimeter Signal issues Calibration Enhancements (Testing) Alan's to-do list? On the To-Do List Bruce Barnett- RAL/STFC

  14. Wikipedia: Puddleglum appears in The Silver Chair, in which he is a principal character. He also appears briefly at the end of The Last Battle.  “Puddleglum is an uncommonly cheerful marsh-wiggle; however, as marsh-wiggles are best-known for their pessimism, he is still a rather gloomy fellow, described by other characters as a "wet blanket". Puddleglum Bruce Barnett- RAL/STFC

More Related