LHC Performance Workshop - Chamonix 2010

Session

Session 6 - Radiation to Electronics

S06

27 Jan 2010, 17:00

Chamonix

Presentation materials

Paper

VV_06_01.docx

VV_06_01.pdf

VV_6.docx

25. Review of critical radiation areas for LHC Electronics and mitigation actions. Radiation monitoring and first results

Markus Brugger

27/01/2010, 17:00

This presentation aims for an update of the radiation levels in the critical LHC areas, both based on updated FLUKA simulations as well as on early measurements. Furthermore, a detailed analysis of the respective particle energy spectra is given and put in contrast to present and possible future radiation sensitivities. The radiation monitoring improvements as performed during the 2009...

26. Review of exposed equipment in the LHC: a global view

Thijs Wijnands

27/01/2010, 17:35

An overview of equipment exposed to radiation in critical LHC areas is presented and the most critical systems are high-lighted with respect to system criticality and operational impact in case of failure, as well as to the expected estimated radiation sensitivity in the different LHC points. System criticality is analysed in terms of failure consequences, while for equipment sensitivity,...

27. LHC Power Converters, the proposed approach

Yves Thurel

27/01/2010, 18:00

The constraints of the power converters with respect to possible SEE induced failures are outlined and put in contrast with the expected radiation levels in the various LHC critical areas. Options of new developments and respective constraints are reviewed and limitations redesigning a full new system are underlined. 2009 and former radiation test results are summarized to conclude what can be...

28. Is the WorldFIP a reliable Rad-hard Fieldbus on long term?

Javier Serrano

27/01/2010, 18:20

The WorldFIP fieldbus was chosen to cover communication needs of critical LHC systems needing determinism and radiation tolerance. WorldFIP slaves use the MicroFIP chip produced by Alstom along with the FielDrive transceiver and associated magnetics. After Alstom announced a progressive decline in support of WorldFIP technology, BE-CO decided to start a technology in-sourcing program in order...

29. Summary of the 2009 irradiation tests and perspectives for future tests and facilities

Daniel Kramer

27/01/2010, 18:40

Numerous radiation tests were performed during 2009, both directly at CERN in CNGS, as well as at various outside facilities. This presentation gives an overview of the test results by putting them in contrast to expected radiation levels in the exposed areas. By applying a best guess scaling of the expected development of the respective LHC radiation levels, failure rates can be estimated for...

30. Experience with the ATLAS radiation policy: can we say we are safe?

Philippe Farthouat

27/01/2010, 19:05

This talk will review the Radiation constraints in ATLAS and the reasons that lead us to define of a “strict” policy. The main points of the adopted policy will be summarized in particular the evaluation of the local radiation environment, procurement strategy, test procedures, recommended radiation facilities, criteria for acceptance, design margins. The problem of efficiently enforcing the...

31. Where are we with the Long-term plans and the CERN-wide radiation Policy

Roberto Losito

27/01/2010, 19:30

The different options for the long term consolidation plan are presented, which should ensure that the risk of SEE in control electronics installed in the LHC is minimized. The plan will imply full (or partly) relocation of the installed electronics for some locations like US85 or UJ56 and UJ76, additional shielding in different areas where relocation is not convenient and may imply major...