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F.E.T.S. Mechanical Engineering Updateby P. Savage
13th August 2008
The design of the first tank internals
is complete.
Motor chassis
Door chassis
Detector
The detector
Faraday cup is isolated from ground (against which the current will be measured).
Thin fabricated copper jacket is at 2kV to accelerate the beam and to enhance the magnetic field.
100 Amp turns onto soft iron yoke.
Soft iron (permeability = 600) dipole is at ground potential.
The motor chassisLinear motors for horizontal motion
Linear motors for vertical motion
Rotary motors x4
Mirrors
Differential pumping detector tunnel Counter-balance
weights
The door chassis
Mount to tank door
Mount to tank base
Telescopic ball slides
Mounting points for motor chassis
New one-piece rail mounts with pockets to guide screw jack transverse position. Being made by Daresbury, due for delivery on 17th September.
Modified first tank support
Screw jacks being modified by AC Precision
Cross braces being made at Imperial
Re-used from old design
Next jobs
Frames for LEBT mounting system arrive at Imperial tomorrow. Rails, rail runners, screw jacks and feet already here. System must then be aligned and delivered to RAL.
Design LEBT beam pipe sections including drift space vacuum vessel
Cost estimate:Beam pipe sections x3 = £2250
Bellows = £500Drift vessel = £7500
Pepperpot vessel = £3500Pepperpot support = £2000------------------------------------
£15750
Mount with simple MiniTec style frame, equipped with rails set at old FETS pitch so that existing alignment system can be re-used.
Upstream flange mates to beam pipe exiting LEBT and downstream flange accepts pepperpot system.
Next jobs
Jobs list
• Detector finished, parts for first tank internals being manufactured now.
• End September
• LEBT frames will be delivered on 14th August
• Assemble with rails, align and deliver to RAL.
• Complete tank stress analysis report for Jeremy Balchin.
• Calculations are done (except weld stresses), needs bringing together
• Begin conceptual design of LEBT beam pipe, vac vessel and pepperpot vessel.
• Rail alignment being done at RAL by Jim Loughrey in September.
• Everything is in place for this to happen
• Meet Serge Mathot at CERN
• Prepare
• Assemble first tank support and take to RAL
• 18th September
• Conduct first tank pump test (on/offline).
• Mount first tank
• Cage to be drilled
• Assemble internals and fit them into tank at RAL.
• Assemble, test, dismantle, anodise, re-assemble, take to RAL
• Cooling calc for RFQ
• RF power in is known – but what are losses?
• Info for Phil’s gantt chart
• Mastercam X2 trial – import vane, use material for gun drilling test.
• Laser enclosure
• CMM job for MICE