Upgrade/RFFoil

Communication

• This wiki: https://wiki.nikhef.nl/lhcb/Upgrade/RFFoil
• ELOG: https://webapps.nikhef.nl/elog/VELO_Upgrade_RFBox/
• Massi's twiki on foil thinning: https://lbtwiki.cern.ch/bin/view/VELO/FoilThinning

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

• AlMg3
• AlMg4.5
• See this link for [Wood's metal

Machining

• [[File:AfnameRapport_DMF260-11.pdf?] Specification of Nikhef's DMF260-11 by the manufactorer]

• 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.

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

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)