LHC Instability Trigger Distribution project (LIST)
Introduction
LIST is a general purpose trigger distribution system based on White
Rabbit.* The latency between reception and transmission of a trigger is
done with a low and notably fixed latency, with an accuracy of
better than 1 ns. The distribution system can receive a trigger from a
“cloud” of devices and distribute it to all relevant devices to for
example freeze their acquisition buffers.
The hardware of the LIST nodes is based on the
SVEC FMC carrier equipped with a
FMC TDC mezzanine and a
Fine Delay
mezzanine.
The gateware of it is based on a 2-core Mock
Turtle.
The first application of the LIST project is to provide a network for transporting trigger pulses between equipment involved in the LHC beam instability diagnostics.
Documentation
- Functional Specification
-
Trigger and RF distribution using White
Rabbit
T. Włostowski et al., Proceedings of ICALEPCS2015, Melbourne, Australia, ISBN 978-3-95450-148-9, October 2015 - LHC Instabilities Trigger Distribution (a.k.a. the LIST), Technical introduction & project status, 11 March 2014
- Instability diagnostics, T. Levens et al.
Design
Top-level system block diagram (hardware +
software):*
Contacts
- Erik van der Bij - CERN - General question about project
- Tom Wlostowski - CERN - Designer
Project status
Date | Event |
15-03-2013 | Functional Requirements on LHC Transverse Instability Diagnostics after LS1 meeting. |
04-11-2013 | LHC instability project scope/objectives first version written. |
19-05-2014 | Functional specification written. |
02-03-2015 | LIST project installed at LHC. Being debugged. |
31-05-2018 | Created ohwr project 'LIST'. |
31 May 2018