Upgrade/RFFoil

Communication

This wiki: https://wiki.nikhef.nl/lhcb/Upgrade/RFFoil
ELOG: https://webapps.nikhef.nl/elog/VELO_Upgrade_RFBox/
Progress reports in MT meetings: http://www.nikhef.nl/pub/experiments/bfys/lhcb/vertex/documents/minutes/
OPP reports: http://www.nikhef.nl/pub/experiments/bfys/lhcb/vertex/documents/oppreports/VeloUpgradeRFFoil/
Massi's twiki on foil thinning: https://lbtwiki.cern.ch/bin/view/VELO/FoilThinning
photographs:
- http://www.nikhef.nl/pub/departments/mt/projects/lhcb-vertex/production/UpgradeRFbox/
- http://www.nikhef.nl/pub/departments/mt/projects/lhcb-vertex/production/UpgradeRFbox/Willem

Planning

Link to project plan: [project plan]

Rough timeline:

R&D/prototyping 2014-2016
Production 2017-2018
Installation 2019

People

Willem Kuilman
Johan Kos
Berend Munneke
Krista de Roo
Erno Roeland
Martin Doets
Rob Walet
Tjeerd Ketel
Wouter Hulsbergen

3D model, 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 manufacturer

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

File:VDL Rapportage lasproeven aluminium.pdf Report by VDL (Dec 2014)

Torlon coating

See [[1]RFFoilTorlon]

NEG coating

File:Mul NEGcoating2005.pdf Presentation by Frans Mul on application of NEG coating at CERN

Vacuum measurements

integral tests at nikhef:
- http://www.nikhef.nl/pub/departments/mt/projects/lhcb-vertex/test/secondary_foil/leaktest/

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

Presentations

This is a very small subset!

2015/02/05: [[2] W. Hulsbergen, CERN RF box workshop]

2012/03/08: File:PhotosLeakMilledFoil TjeerdKetel 20120308.pdf T. Ketel, SEM-EDS analysis of leak in VU-MC Box 1

Activities/milestones reached

2016/03/31: Box 2 milling is finished
2015/10/29: Vacuum tests show the box is not vacuum tight: https://webapps.nikhef.nl/elog/VELO_Upgrade_RFBox/8
2015/10/01: Milling now completely finished!
2015/09/17: Milling of outside is finished, apart from side that has wakefield connectors
- photos taken by Tjeerd: http://www.nikhef.nl/pub/experiments/bfys/lhcb/vertex/documents/minutes/2015/documents/photohb2.pdf
2015/09/03: Mold positioned inside box and space filled with wax
2015/08/20: Inside milling finished
- metrology report: http://www.nikhef.nl/pub/experiments/bfys/lhcb/vertex/documents/minutes/2015/documents/HalfboxA.pdf
- photos taken by Tjeerd: http://www.nikhef.nl/pub/experiments/bfys/lhcb/vertex/documents/minutes/2015/documents/photohb.pdf
2015/07/04: Pressure cycling tests of edged foil, see http://www.nikhef.nl/pub/experiments/bfys/lhcb/vertex/documents/minutes/2015/documents/cycletest4.pdf
2015/06/11: Heating box (for heating foil/mold when filling with wax) finished and tested
2015/04/16: Outside milled to +1 cm. This is how it will stay until inside is finished
2015/03/19: Mold finished
2014/12: Started milling of the mold
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
2014/10/02: Machining of 5 drums ready (4 of 250 mu thickness, 1 of 150 mu thickness, all without leaks)