1. R2E Workshop Preparations RadWG Meeting March 25 th

2. Aim Of the Workshop Update on early monitoring and calculations Summarize known/unknown equipment sensitivities Estimate risk of radiation induced failures for electronics over the period(s) of LHC operation Review all mitigation options Planning & Cost Estimates Derive a proposal/plan to be presented to the management

3. “Workshop Planning” Date: June 8 th – 10 th Agenda currently in preparation List of open points (“work-packages”) summarized at: – http://r2e.web.cern.ch/R2E/R2E_Workshop.htm http://r2e.web.cern.ch/R2E/R2E_Workshop.htm RadWG Iterations: upcoming meetings dedicated to: – equipment tests, test requirements (present & future), relocation constraints, other equipment mitigation options (e.g., split of units) or new developments – it’s your responsibility to be present and contributing

4. Where Are We? Analysis of critical areas (calculations,…) Early mitigation options (immediate improvements) and medium-term preparations Equipment inventories & constraints Early monitoring and LHC operation Analysis of mitigation options First proposal of options PC Review R2E Workshop Long-Term proposal Start … Next steps

5. Input From Equipment Owners Equipment inventories are the basis for the integration (relocation) studies – Are the lists complete/correct? -> The provided details are collected in reports to be distributed for approval -> Coordinated by G. Spiezia (e.g., Point-5 next talk) For all critical areas, installed equipment has been ordered by priority taking into account: – Category (safety related of other) – Failure consequences (e.g., length of downtime) – Radiation sensitivity (where known) – Summary available at: http://r2e.web.cern.ch/R2E/Equipments.htm -> Please verify that it’s complete and correct -> The summary will again be distributed for approval

6. Equipment Owners – Radiation Tests Former tests (TCC2, …) – in case results can be used for equipment installed in critical areas (not yet tested at CNGS) – the results have to be reviewed, discussed and summarized Past CNGS tests: – Lessons learned: reporting has to be improved (in many cases only presentations exist, as well as Daniel’s summary paper) – RP constraints followed partly at last minute Upcoming tests: – RP related preparations more sound – Focus on equipment in critical areas (COTS mainly) – Preparation crucial due to possible high sensitivity (continuous monitoring required) – Providing an estimate about the failure probability was requested at Chamonix -> before long-term mitigation options can be started

7. Input From Equipment Owners Optional mitigation possibilities: – ‘Easy’ improvements (e.g., switching off access doors during LHC operation) Procedure prepared? – Split (reconfiguration) of equipment so that most sensitive part can be brought in save areas Minimize relocation costs, allow for early actions! Any proposals? – New developments (e.g., ELMB++ with PH/ESE, FIP,…) Your requirements? – Test facilities & areas: estimate of test requirements