Changes between Initial Version and Version 1 of Research/LhARA/RadiationBiology/Meetings/2024-08-23

Timestamp:

Aug 23, 2024, 12:18:35 PM (3 months ago)

Author:

jmm119

Comment:

--

Research/LhARA/RadiationBiology/Meetings/2024-08-23

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+= LhARA PoPLaR meeting: 23Aug2024; 14:00 BST=
+
+**ZOOM:** https://imperial-ac-uk.zoom.us/j/92877706542?pwd=SVRnWUpYRDdOZVY2ZnBmM3grSnFpZz09
+
+== Agenda ==
+
+1. Updates from DL (H.O, B.S, K.L):
+
+Materials provided by STFC:
+
+6 quadrupoles (with option to go down)
+Gradient 150 T/m
+Gradient quality around 2%
+Measurement of magnetic centre 20um desired, but flexible
+10mm radius
+20mm diameter (clear aperture)
+18mm diameter (good field aperture)
+Quadrupole magnetic length 20mm
+Nickel coated for moderate vacuum compatibility
+4 threaded holes and 2 dowels on each face
+Engraved mark on quadrupole face to allow determination of orientation and matching to magnetic centre. Identification marks on quadrupoles (done by manufacturer)
+
+Thread size discussed- decided on M6 as preference
+Maximum frame size 130mm across
+
+
+Likely quadrupole cost 2k per quad
+Budget available around 12k
+
+Basis of work:
+STFC to procure quadrupoles
+STFC to measure quadrupoles
+Colin Whyte to arrange transport to Strathclyde
+
+
+In-vacuum
+
+
+Materials provided by Strathclyde University:
+
+
+Mounting plate arrangement within vacuum chamber - probably dead reckoning onto a single plate with perhaps dowels and discrete surface plate holes.
+Description of alignment method, possibly laser through the aperture with Mylar targets?
+Provision of any protection inserts/sheets (e.g. plastic)
+Collimators - likely aluminium plates with drilled holes.
+
+
+Timeline:
+
+Quotes end of August
+Review early Sep with Ross and Clive Hill (+Ben etc)
+Procurement Sept/October
+Receipt by end of September
+Measure by end of October
+Early November shipping to Strathclyde
+Mounting on beamline November
+Experiment early December
+
+Discussion to aim for end of November mounting to ensure beam time window not missed.
+
+2. Discussion on quad attachment/alignment/mounting (All)
+
+R.G. proposes optical rail to mount all components on so it can be lifted vertically without disturbing Thompson. Weight calculations for each quad (rough estimate of a few lbs per quad, collimators assumed to be light) to be done to check weight baring.
+
+3. Simulation updates (J.M)
+
+BDSIM initial simulations show somewhat a similar design to the linear optics. Proper side by side analysis is to be completed 
+
+4. AOB \\