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1st Meeting on LS2 East Area upgrade
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Europe/Zurich
112/R-028 (CERN)
Description
Up to early 2012 we have defined an upgrade and consolidation program for the East Area, following a large number of serious hardware failures. The program aimed at consolidating beams and infrastructures, but also to optimize the beam lines in terms of performance (top momentum, choice of particle type, etc) and maintainability and better management of radiation dose. The T7 and T11 lines would disappear, T9 and T10 be improved and the front-end of the primary line modified. All beam lines would only contain magnets approved by TE/MSC. At that time it was thought that DIRAC might continue to run after LS1 and only after some time the radiation facilities might move to the DIRAC location.
The proposed program was validated during the East Area day in 2012, but with the request to maintain the T11 beam in the reorganization of the beam lines.
See https://indico.cern.ch/event/167761/for the slides shown at that day.
However, towards the end of 2012 it was decided to stop and dismantle DIRAC immediately and to give priority to the radiation facilities, which in the meantime have been constructed (CHARM and IRRAD). Also at the same time it was suggested to replace a number of massive magnets in the beam lines by laminated equivalents that can be pulsed. The power savings would amortize the investment cost for new magnets in a few years. Also the new electrical and cooling infrastructure can be redimensioned (i.e. smaller), leading to potentially even larger savings.
In this light it is now time to come back to this remaining part of the project and finalise the design, documentation and costing. We have compiled the existing documentation into a single (large) document which is attached to the top of this page.
The aim of th
is meeting (and probably a few more) is to correct, complete and finalise this document. The chapter on T11 and pulsed magnets still need some work. The particular issues are:
1. Correct the description of the CHARM and IRRAD part,
2. COSTING of pulsed magnets incl. power supplies and impact on electrical and cooling system cost,
3. Review all other COSTS, in view of what we have done and learned in the first project phase,
4. Any other corrections to the text.
Since 2012 a lot of information concerning the East Area complex has been carefully documented in the safety file, e.g. EDMS document number 1273737 for the descriptive part (and also 1273738-1273740).
