WAMSDO 2013 - Workshop on Accelerator Magnet, Superconductor, Design and Optimization - 15-16 January, Bldg. 6/2-024

Name: WAMSDO 2013 - Workshop on Accelerator Magnet, Superconductor, Design and Optimization - 15-16 January, Bldg. 6/2-024
Start: 2013-01-15T09:00:00+01:00
End: 2013-01-16T17:00:00+01:00
Location: CERN

15 Jan 2013, 09:00 → 16 Jan 2013, 17:00 Europe/Zurich

CERN

Description

Topic: The quench modelling, detection and protection of the individual superconducting magnets for LHC upgrades and future machines. The workshop is intended to support the ongoing collaborative design efforts of these magnets. The protection of the actual circuits in the machines is not part of this workshop in order to concentrate better on the early design efforts on these high field and/or large aperture magnets.

Support

rachelle.decreuse@cern.ch

Participants

60 View full list

Tuesday 15 January
- Tue 15 Jan
- Wed 16 Jan
- 1
  
  Welcome
  
  Speaker: Gijs De Rijk (CERN)
- 2
  
  Quench 101
  
  basics of quench thermal, electric and hydraulic phenomena. Physic models and their nature. Hot-spot, effect of cooling, helium flows. Voltages. Temperature gradients and thermal stresses. Propagation. Protection strategies depending on magnet size - scalings.
  
  Speaker: Mr Luca Bottura (CERN)
  
  Paper
  
  Slides
- 3
  
  coffee break
- 4
  
  Quench protection for the LHC
  
  Quenches experienced, natural (training), induced (beam), triggered (QH discharge) during operation. Quench propagation in the string. Quench protection in the machine vs. test benches (threshold, filters, etc.). Preventive thresholds (BLM) and related issues.
  
  Speaker: Arjan Verweij (CERN)
  
  Slides
- 5
  
  Quench limits in the next generation of magnets
  
  What are the physical limits and how close to those limits should a magnet be during quenching, what will the new magnets in LHC require from QD+P point of view ?
  
  Speaker: Dr Ezio Todesco (CERN)
  
  Paper
  
  Slides
- 6
  
  New ideas on quench detection and protection
  
  Speakers: Gijs De Rijk (CERN), Mr Luca Bottura (CERN)
  
  Slides
- 7
  
  lunch break
- 8
  
  Modelling quenches - a review of the tools
  
  physics, programming, validation, distribution and availability
  
  Speaker: Helene Felice (Lawrence Berkeley National Lab. (LBNL))
  
  Paper
  
  Slides
- 9
  
  Quench in HTS magnets
  
  physics and issues. State-of-the-art
  
  Speaker: Justin Schwartz (North Carolina State University)
  
  Paper
  
  Slides
- 10
  
  coffee break
- 11
  
  Topic 1: Heat transfer and quench propagation from quench heaters
  
  modeling, issues, limits, ideas
  
  Speaker: Tiina Salmi (Lawrence Berkeley National Laboratory)
  
  Paper
  
  Slides
- 12
  Topic 2: Detecting mechanical vibrations in superconducting magnets for quench detection and diagnostics
  
  Speaker: Mr Maxim Marchevsky (LBNL)
  Paper
  
  Slides
  
  Detecting_mechanical_vibrations_wamsdo_mm.pdf
  
  Detecting_mechanical_vibrations_wamsdo_mm.pptx
  
  Sound_slides_talk.pptx
- 13
  
  Topic 3: Propagation speed
  
  adiabatic, cooled, transverse, LTS, HTS, helium mediated - (some of this could also be in the first talk on basic quench theory)
  
  Speaker: Herman Ten Kate (CERN)
  
  Slides
- 14
  
  Topic 5: Considerations on Quenching HTS Coils
  
  Speaker: Matthieu Dalban-Canassy (Florida State University)
  
  Slides
- 19:30
  
  Social Dinner
  
  The banquet will start at 07:30 p.m. at:
  Brasserie des Halles de L’Ile (Address: Place de l’Ile 1, 1204 GENEVA)
  Phone Nr.: + 41 22 311 08 88
  http://www.brasseriedeshallesdelile.ch/lieu.htm
  
  The asking price for the dinner will be 46 chf/person (sum to be given directly to Gijs de Rijk, please have the exact cash with you).
  Click below for directions from CERN to ‘La Brasserie’:
  
  http://maps.google.fr/maps?f=d&source=s_d&saddr=CERN,+Meyrin,+Switzerland&daddr=Brasserie+des+Halles+de+l'Ile,+Place+de+l'Ile,+Geneva,+Switzerland&hl=en&geocode=FWd5wQIdl2hcACFdbCobN2TV9SmtUkfa-mKMRzFdbCobN2TV9Q%3BFW0HwQIdHLRdACF6tQ2o8zIGjilp3cMr1mSMRzF6tQ2o8zIGjg&aq=0&oq=bRASSERIE+HALL&sll=46.75984,1.738281&sspn=12.631604,18.522949&vpsrc=0&mra=ls&ie=UTF8&t=m&z=13&layer=c&ei=4y71UIvtJdLd8QP6kYGoAQ&pw=2
  Click below for getting the route planner with ‘Transport Public Genevois’:
  
  http://tpg.hafas.de/hafas/tp/query.exe/en?
Wednesday 16 January
- Tue 15 Jan
- Wed 16 Jan
- 15
  
  Case study 1: Models and experimental results from the HQ-LQ and QXF
  
  Speaker: Giorgio Ambrosio (Fermilab)
  
  Paper
  
  Slides
- 16
  
  Case study 2: Models and experimental results from the 11 T DS Nb3Sn dipole
  
  Speaker: Guram Chlachidze (Fermilab)
  
  Paper
  
  Slides
- 17
  
  Case study 3: Models and experimental results from the wide aperture Nb-Ti magnets MQXC, D1 and Q4
  
  Speaker: Glyn Kirby (CERN)
  
  Paper
  
  Slides
- 18
  
  Case study 4: Quench analysis for the HD program
- 19
  
  coffee break
- 20
  
  Case study 5: Protection of Fresca2
  
  Speaker: Philippe Fazilleau (DAPNIA)
  
  Paper
  
  Slides
- 21
  
  Case study 6: Protection of insert-outsert combined magnets
  
  Speaker: Antti Aleksis Stenvall (Tampere University of Technology)
  
  Paper
  
  Slides
- 22
  
  Case study 7: Radiation damage effects on RRR
  
  Speaker: Rene Flukiger (Florida State University (US))
  
  Paper
  
  Slides
- 23
  
  discussion, what are the actions we need ?
  
  Slides
- 24
  
  closing of the workshop
  
  Speaker: Gijs De Rijk (CERN)
- 25
  
  lunch break