Review on the thermal stability of Accelerator Superconducting Magnets

Tuesday 14 Nov 2006, 08:30 → 13:00 Europe/Zurich

Conference room 40-S2-C01

Louis Walckiers (CERN)

A half day meeting to review all experimental and modelling studies ongoing at CERN on thermal stability of accelerator superconducting magnets. This review covers transient and steady state heat deposition processes in S.C. cables, coils, and transfer to the helium heat sink. All types of SC magnets built for LHC are concerned. Studies for future projects based on different cables, insulations or cooling modes will be covered. The review will concentrate on recent progresses, current goals, and resources allocated or to be allocated. Ongoing collaborations will also be mentioned. The contributions will be limited to 10 minutes talks plus 5 minutes questions, in order to devote enough time to a session of discussions.

08:30 → 08:40 Introduction

Speaker: Mr Louis Walckiers (CERN)

Slides Intro.pdf Intro.ppt

08:40 → 08:55 Energy deposited by the beam

Speaker: Jean Pierre Koutchouk (CERN)

Slides energy_deposit.pdf energy_deposit.ppt

08:55 → 09:10 Stability of strands and cables : measurements and modelling

Speaker: Arjan Verweij (CERN)

Slides Review_Thermal_Stability_Arjan.pdf Review_Thermal_Stability_Arjan.ppt

09:10 → 09:25 Measurement of heat transfer from cable to outside the insulation

Speaker: David Richter (CERN)

Slides Heat_transfer_2006_11_14_for_pre-print.pdf

09:25 → 09:40 Modelling of heat transfer from superconducting coils to helium II : Nb-Ti vs. Nb3Sn

Speaker: Marco La China (CERN)

Slides La_China.pdf La_China.ppt

09:40 → 09:55 Modelling of the quench levels induced by heat deposition

Speaker: Dr Andrzej SIEMKO (CERN)

Slides siemko.pdf siemko.ppt

09:55 → 10:10 Using CFD to calculate heat transfer in accelerator magnets

Speaker: Glyn Kirby (CERN)

Slides

• kirbyMQYheatflow.pdf
• kirbyMQYheatflow.pdf
• kirbyMQYheatflow.ppt

Video CIMG0772.AVI

10:10 → 10:30 Coffee break

10:30 → 10:45 Stability and heat removal models

Speaker: Dr Luca Bottura (CERN)

Slides Bottura.pdf Bottura.ppt

10:45 → 11:00 Transfer from the coils to the helium heat sink

Speaker: Dr Rob Van Weelderen (CERN)

Slides Van_Weelderen.pdf Van_Weelderen.ppt

11:00 → 13:00 Discussion opened to all participants

Speakers: Arjan Verweij (CERN), Louis Walckiers (CERN)