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3rd July 2007 Cherrill Spencer, SLAC. Info on top of FD ATF2quad for D. Urner
1
ATF2
Magnets
ATF2
Magnets
Information on top of the QC3 style quads that will become QD0 and QF1. For David Urner.
3rd July 2007
Cherrill Spencer, SLACMember of ATF2 Magnet Team
3rd July 2007 Cherrill Spencer, SLAC. Info on top of FD ATF2quad for D. Urner
2
ATF2
Magnets
ATF2
Magnets
Revised core model showing enlarging the “QC3” quad’s bore diameter
Place a very flat and precise thickness shim in each split plane to “explode” the quad and enlarge the bore diameter.
Shim will be low carbon steel, ground to 0.0005” flatness- are being made.
Trim coils that went in the slots will be removed.
3rd July 2007 Cherrill Spencer, SLAC. Info on top of FD ATF2quad for D. Urner
3
ATF2
Magnets
ATF2
Magnets
We are making detailed drawings which we lack of this quad- fab’d in Russia
about 17 years ago
Here’s a quad being measured in April. This is the terminal end. You can see the orange LCW hoses coming out of blocks that attach to the coils, they stick up vertically. THESE WOULD BE IN THE WAY OF YOUR 50cm long mounting plate put on top. Nothing else is in the way.
3rd July 2007 Cherrill Spencer, SLAC. Info on top of FD ATF2quad for D. Urner
4
ATF2
Magnets
ATF2
Magnets
Here is a photo of the top surface of an ATF2 FD quad before modification
Orange steel core is 45 cm long.
Light green trim coils will be removed
Tooling ball holder will be removed
This end has the LCW hoses that attach to the coils
This end is quite empty
Power terminals are not in the way
3rd July 2007 Cherrill Spencer, SLAC. Info on top of FD ATF2quad for D. Urner
5
ATF2
Magnets
ATF2
Magnets
We can replace the straight hose fittings with 90º elbow ones
This fitting is 2.5cm away from end of core and ~1mm below top surface. We can replace it with an elbow fitting so LCW hose sits horizontal rather than vertical.2.5cm
3rd July 2007 Cherrill Spencer, SLAC. Info on top of FD ATF2quad for D. Urner
6
ATF2
Magnets
ATF2
Magnets
Compare the two ends of the FD quads: one clear, one not
These posts are to hold terminal covers- covers can be redesigned.
Core is 45cm long, Urner et al need to mount a plate ~50cm long on top of quad. Spencer thinks this can be done. KEK alignment fixtures need to be integrated in this scheme.
This straight fitting will be replaced by a 90º elbow one
All trim coils like this will be removed.
3rd July 2007 Cherrill Spencer, SLAC. Info on top of FD ATF2quad for D. Urner
7
ATF2
Magnets
ATF2
Magnets
New drawing of modified FFTB quad core- with new shims
7.171”= 18.2cm45 cm
3rd July 2007 Cherrill Spencer, SLAC. Info on top of FD ATF2quad for D. Urner
8
ATF2
Magnets
ATF2
Magnets
Here’s photo of non-terminal end poletips (ignore the drooping vacuum pipe!)
More space here for your retro-reflectors
These 4 trim coils will be removed and shims put in at these split planes