SmartPhantom meeting: Wednesday 5^th June 2019, 16:00

Meeting details

Teleconference

Phone details:

UK: 08082 380274
Austria: 0800 006612 

PIN: 5904750902

Full list of telephone contacts may be found here.

Notes:

Present: JB, KL, AK, HT, LC

1. Outline of design: LC
   Present design for gluing jig was described (see slides).
   • Questions raised:
     • What resin should be used? We discussed trade-off between viscosity and fibre spacing. Need to take advice from Resin Lab.
     • How to will a doublet layer be wound? Concept is that former is used to wind one layer of fibres. Fibres themselves for the support for the second layer.
     • What is the minimum bending radius of the fibre and does the lobe match the minium bend radius for the fibre? We discussed the issue of micro-cracks, which may degrade optical performance, and the possibility of fibre breaking. We agreed that we would need to address the fibre-breaking issue to avoid a lot of wasted time and material during manufacture.
       • AK agreed to find minimum bending radius;
       • LC will consider options for stopping the unravelling during manufacture.
   • We discussed how to move forward and agreed to move to prototype manufacture when:
     • LC had a chance to think about a means of mitigating issues arising from fibre breaks;
     • Input had been received from the Resin Lab about the various gluing issues;
     • Samples of printed circuit board (JB to supply spec) and carbon-fibre sheet have been sourced;
   • Further we agreed:
     • To place an order for clear fibre (KKL, AK)
     • To consider optical readout next time.
2. Slide from HT:
   HT presented outline results of his simulation (see slide). Initial conclusions:
   • Mylar OK if thickness is less than 300 microns per sheet
     • We also agreed to consider aluminium or black (anodised) aluminium
       • The use of (e.g.) 50 micron aluminium will be checked in simulation (HT).
3. Agreed to meet next week:
   • 11:00 Tuesday 11Jun19