Beam presence for Beams 1 and 2 do have a threshold limit of 3e9, so should be negative for anything below that value. Beam presence shouldn't go TRUE until protons meet or exceeds 3e9. Not sure if this threshold is ever altered though.
JTC
Search found 3 matches
- Sat Dec 05, 2009 4:24 pm
- Forum: The Accelerator
- Topic: What does ... mean?
- Replies: 28
- Views: 46296
- Sat Dec 05, 2009 3:49 pm
- Forum: The Accelerator
- Topic: What does ... mean?
- Replies: 28
- Views: 46296
Re: What does ... mean?
At the lower-right of "LHC Page 1" is the SMP , or Safe Machine Parameter section. These are status flags from the control system. The SMP system is a highly redundant hardware/software safety system, operating sort of as safety interlocks across the entire control system. They are in place to ensur...
- Sat Dec 05, 2009 2:30 pm
- Forum: The Accelerator
- Topic: What does ... mean?
- Replies: 28
- Views: 46296
Re: What does ... mean?
Here is an older but still relevant document: http://lhccwg.web.cern.ch/lhccwg/Meetings/2007/2007.12.04/LHC%20Modes.ppt It explains the various accelerator, beam, operations modes so that you can track where the LHC is overall. Snip of some of the early Beam Modes we are in now or will soon be in: I...