Upgrade/RFFoil

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Communication

Planning

Link to project plan: [project plan]

Rough timeline:

  • R&D/prototyping 2014-2015
  • Production 2016-2017
  • Installation 2018

People

  • Willem Kuilman
  • Berend Munneke
  • Johan Kos
  • Martin Doets
  • Rob Walet
  • Tjeerd Ketel
  • Wouter Hulsbergen

Drawings

The CATIA model and stp files for the RF box can be found on Martin's webpage:

http://www.nikhef.nl/~martind/Velo%20boxes/

Requirements

File:Requirements.pdf is the information given to external partners.

Information on materials

Machining

  • File:Mul Milling vs Turning.pdf is an old presentation by Frans Mul. The interesting conclusion is that 'turning' leads to a leaking foil, while 'milling' does not.

Fixing leaks

NEG coating

Vacuum measurements

  • Dye penetrant inspection
 * Information provided by Gonzalo ARNAU IZQUIERDO (materials engineer at EN/MME,CERN)
    * https://www.nde-ed.org/EducationResources/CommunityCollege/PenetrantTest/PTMaterials/ptmaterials.htm
    * http://en.wikipedia.org/wiki/Fluorescent_penetrant_inspection
 * Measurements were done by EN-MME Alexandre Gerardin:
    * https://edms.cern.ch/document/1409244/
    * https://lbtwiki.cern.ch/pub/VELO/FoilThinning/Metallurgy_report_1409244.pdf 
 * CERN can do this for the 1m long box

Presentations

  • 2012/03/08: [[File:PhotosLeakMilledFoil_TjeerdKetel_20120308.pdf]T. Ketel, SEM-EDS analysis of leak in VU-MC Box 1]

Activities

Starting October 2014 ...

  • 2014/10/02: Machining of 5 drums ready (4 of 250 mu thickness, 1 of 150 mu thickness, all without leaks)
  • 2014/10/20: Three drums with 0.1 micron holes sent to VDL (see ELOG)
  • 2014/10/20: Received 1kg of Field's metal and 1kg of cerrolow 136 from Lowden Limited

Action items

  • arrange a room for Willem (2014/09/18)
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