Meeting Notes 1 March 2017¶

• An issue with the main injector began about a week ago
  • beam loss at high field under high average current conditions
  • When the reached the highest intensity the beam was getting pushed into the outside wall
• Digital radial position system then diverged from the analog radial position system as well as the Q530 BPM
• Placed two high power 3db pads at the end of the BPM signal cables which seems to have fixed the issue
• Possibly a thermal effect due to higher power operations

Meeting notes 15 March 2017¶

• No new complaints on the changes made two weeks ago

Meeting notes 22 March 2017¶

• No new information, this needs study

Meeting notes 29 March 2017¶

• Nothing new, this needs study
• Philip will follow up on a down day

Meeting Notes 5 April 2017¶

• Need to follow up on a down day.
• Issue with the recycler came back when the new boards were installed, but is now resolved. There needs to be some new code installed.

Meeting notes 12 April 2017¶

• Still need to follow up on a down day...

Notes 19 April 2017¶

• New problem has been reported
  • Stray F-3 events being broadcast that are sourced from our recycler crate
  • This has become more frequent
  • Seems to be happening during end cycle
  • Philip will investigate

Meeting Notes 3 May 2017¶

• Narrowed the problem down to 4 lines of assembly language
• Still not resolved

Meeting notes 10 May 2017¶

• Attempted diagnostics masked the problem
• Tests in different configurations (some worked for short periods some didn't)
• We think the problem is narrowed down
  • Writes from the DSP to the FPGA, there appears to be a glitch
  • Appears to be a timing issue (writing without handshakes)
  • Philip is working on a solution

Meeting Notes 17 May 2017¶

• The issue was fixed last week, tested in the lab, and put in the operational machine during the shutdown yesterday
• We should continue to monitor (controls keeps track of the excess events)
• There is a detailed report on redmine
• There was a call regarding the UCD not decoding the event
  • Possibly do some parasitic testing while MI is shutdown before the recycler is shutdown
• We will do an upgrade of the hardware

Meeting notes 24 May 2017¶

• In a holding pattern for the time being due to hardware issues

Meeting notes 7 June 2017¶

• Testing new firmware in the lab for the UCD modules
  • Testing of this occurred in the recycler last year (successful)
• New slot-0 controller means new libraries
• Would like to test before the shutdown
• Wanted to shrink the timing by 15 milliseconds for the transfer
• More mysterious behavior

Meeting notes 12 July 2017¶

• MI and Recycler are now shut down until October
• The events and timelines are available so we should be able to test our systems
• There was an issue with locking to the marker, which has been resolved (error in the firmware that was introduced when changing SOM modules)
• Need to be a little better about fully testing changes that are going into operational systems
• Look at the comb filter system

Meeting notes 2 Aug 2017¶

• Note we are currently in a shutdown
• There is some hardware being installed by the high level group
  • Use three recycler cavities
  • One could be either an A or B cavity, modules for switching the fanback signals
  • It is transparent to our system at the moment but that may change
• Some changes in MI and MRF that were requested a little while ago
• Currently being tested then try out at MI-60 in the future

Meeting notes 16 Aug 2017¶

• Nothing new to report

Meeting notes 30 Aug 2017¶

• Made some changes to the code that will implement single group operation. Currently in lab testing
  • Exploring options for switching back and forth
  • Code will be commented and documented
• Need to talk with Duane about the libraries

Meeting notes 20 September 2017¶

• Shutdown continues
• Testing of new cycles that they want to run when the machine comes back on
• Shutdown ends the week of October 23rd
• Comb filter discussion is ongoing

Meeting Notes 27 September 2017¶

• Shutdown continues
• Testing ongoing
• Awaiting end of shutdown for operational testing.

Meeting Notes 25 October 2017¶

• Shutdown continues, but turn-on is commencing.
• No additional news.

Meeting Notes 10 November 2017¶

• Ongoing bring-up. Initial issue was a power amplifier that wasn't powered on.
• Secondary issue was due to connecter problem behind rack
• Week following next is most likely time for final bring-up
• Want diode detector instrumentation for reference signal loss
• 2.5 MHz system running off SoC MFC

Meeting Notes 07 February 2018¶

• Checking on vxWorks updates and future plans
• MI cycle has been shortened to the point where the end of beam is interfering with our processing time

Meeting Notes 28 February 2018¶

• Installed updated VXI-UCD cards with new firmware in MI and RR systems
• 1 week run without any errors noticed
• Need to test with injection events in timeline
• RR ring frequency scans having issues

Meeting Notes 7 March 2018¶

• Still no errors after running on updated UCD code
• Do we need Duane to bump up version of libraries. Is this possible given other systems?
  • We believe these libraries are only used in MI system
  • Possibly backup the production version locally or in production folder

Meeting Notes 25 April 2017¶

• Duane made production version of libraries
• Old production version backed up

Meeting Notes 2 May 2018¶

• 5500 board died last week (Friday) and looked as if it had corrupted boot parameters
• Log book entry