The place to discuss the LHC. Commissioning, operation, issues, events ....
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pcatom
- LHCPortal Guru
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by pcatom » Mon Apr 27, 2015 7:27 pm
You answered it yourself: AGK = Abort Gap Keeper.
Is is a hardwired part of the beam dump system to ensure that beam is not injected into the abort gap.
The abort gap is a region in time where there is a gap in the beam to allow the beam dump kickers to rise to their full field in order to extract the beam cleanly. It is about 3 micro-seconds long ( out of the 88 micro seconds that makes up the LHC circumference (expressed in time rather than distance for particles traveling at more-or-less the speed of light.
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rudolfst
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by rudolfst » Mon Apr 27, 2015 8:57 pm
Thanks,
So this "keeps" the abort gap.
You say "hardwired part", does this mean it is a piece of hardware, separate from all of the software that controls the loading of the LHC with protons?
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pcatom
- LHCPortal Guru
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by pcatom » Tue Apr 28, 2015 6:58 pm
Hardwired in the sense that it cannot easily be changed - we are, after all talking about a timing synchronization system at the ns level. It is an integral part of the injection and dump system and is mostly implemented in analog electronics