Minutes of the 15th LHC Electronics Board
held on 29 October 1999.
J. Christiansen, C. Decosse for point 2), Ph. Farthouat, F.
Apologies: P. Borgeaud, F. Corsi, E. Petrolo, V. Radeka, G. Viertel.
G. Hall, M. Letheren, S. Quinton, P. Sharp Chairman), G. Stefanini,
M. Schmelling, W. Smith, M. Turala.
On behalf of the Board the Chairman thanked W. Smith and the members
of the Local Organizing committee for their excellent organization of 1999
LEB Workshop Snowmass, 20-24 September 1999). The workshop had attracted
over 150 attendees with more participants coming from outside Europe than
in previous years 70% Europe, 26% USA and 4% Japan). Ten invited talks
were given in plenary sessions on selected topical issues, 78 oral presentations
were made in parallel sessions, 4 paper-only submissions were received
and 22 contributions were made to the poster sessions. Two wrap-up panel
sessions discussed the important issues that had emerged during the workshop.
C. Decosse presented the first printed copies of the Workshop Proceedings,
which this year are being published as a CERN Yellow Report CERN 99-09)
in order to increase their dissemination. The proceedings are also available
on the web at
The Chairman warmly thanked C. Decosse for the rapid assembly and publication
of the proceedings for the fifth consecutive year.
The Board identified the following major points as conclusions from
M. Turala presented a proposal to host a workshop on Electronics for
LHCC Experiments in Cracow, 11-15 September 2000. The local organization
of the proposed workshop would be jointly carried out by two institutes
in Cracow, namely the Faculty of Physics and Nuclear Techniques and the
Institute of Nuclear Physics. The Board warmly welcomed the proposal.
Risks associated with radiation effects in Commercial-Off-The-Shelf COTS)
electronics components and systems installed in the experimental caverns
or on the outer detectors. Satisfactory risk management strategies have
not yet been worked out by all experiments and subdetectors. Radiation
effects are also emerging as an important issue for COTS electronics components
and systems to be installed in the LHC machine tunnel.
From previous workshops the Board had concluded that some of the less ëglamorousí
aspects of electronics systems design needed more attention e.g. examples
of such aspects were power distribution and regulation, in-situ verification,
maintenance, etc.). This year the Board noted that the Collaborations are
now focussing increased attention on to some of these important issues.
The Board believes that in many cases the complexity of the tasks and the
time needed to ensure an adequate quality of electronics testing and to
carry out the commissioning has been underestimated. The risks and potential
consequences of starting production with inadequate prototype characterization
or incomplete test procedures are not always fully appreciated.
In a number of cases electronics is now clearly on the critical path of
the schedules of the LHC experiments.
The review process for electronics aspects of the LHC experiments should
Good progress has been made in applying the radiation-tolerant design technique
in 0.25mm CMOS technology to LHC front-end ASICs.
The role of the LEB.
The Board reviewed the status of the issues that it had addressed
to date. These include the remaining electronics R&D activities, radiation-hard
technologies, quality assurance methods, radiation-tolerance of COTS components,
radiation-tolerant ASIC design in commercial 0.25mm
CMOS processes, certain aspects of system design that have not received
sufficient attention, the promotion of ëcommon solutionsí. The Board then
discussed structures and methodologies for addressing the important issues
that will need attention as the LHC schedule moves into the construction
phase for electronics.
Action -----> P. Sharp to review the future of the LEB with
R. Cashmore and J. Engelen.
The next LEB meeting will be on 13 January 2000. Projects RD12, RD48
and RD49/COTS should present status reports.