1. F.E.T.S. Mechanical Engineering Update
by J. Pozimski
On behalf of P. Savage
26th September 2007

2. Activities:
1) RFQ cold model end flange inserts
2) Laserwire beam profile measurement tank
3) FETS support stands
4) LEBT

4. R.F.Q. cold model end flange inserts have been delivered
GUIDE
CONE
HUB
SPACER
FINGER HUB
FINGERS

5. Activities:
1) RFQ cold model end flange inserts
2) Laserwire beam profile measurement tank
3) FETS support stands
4) LEBT

6. Design concept of the laserwire beam profile measurement tank
Faraday cup
Solenoid

7. The problem relating to the supply of ALIO stages appears to have been resolved.
David has tested the lower force motor fitted with a counterbalance and mounted vertically and the result is satisfactory. This allows us to standardise on the motors used and reduces space occupied by the motors (in the all important Z direction).
Conclusion: the engineering design of the tank can now continue. Plan is to have the outer stainless steel vessel manufactured by a specialist company and to have the internals (i.e. motor mounting chassis and post-acceleration system) made in-house.

8. Activities:
1) RFQ cold model end flange inserts
2) Laserwire beam profile measurement tank
3) FETS support stands
4) LEBT

9. The FETS support stands main parameters
Beam
Floor to centre of beam = 1650mm
Rail diameter = 50mm
Rail spacing = 800mm
Floor to centre of rail = 800mm
NOTE: Floor to beam centre has been changed and is now 1600mm

10. The FETS support stands vee blocks
Corner vee block – 4 per stand
Mid vee block – where needed
Due for delivery on September 10th.

11. Support stand rail vee blocks have been delivered

12. … and the vee block components assembled
They have now be dismantled and sent out for zinc plating

13. Activities:
1) RFQ cold model end flange inserts
2) Laserwire beam profile measurement tank
3) FETS support stands
4) LEBT

14. A conceptual design for the LEBT mounting system is shown opposite
A conceptual design for the LEBT mounting system is shown opposite. The design uses one frame, mounted to the rail system of the main support benches. Upon the LEBT mounting frame the individual solenoids sit on 3 screw jacks which in turn sit on a vee + flat rail system. The solenoids are individually aligned. Shown are drift spaces of 10, 35 and 10cm respectively. The 35cm drift space has a vessel fitted with a Oerlikon MAG W2200 pump.

15. Future plan:
Define future engineering requirements, divide work with extra manpower.
Finalise beam profile measurement tank design, produce engineering drawings and send for quotes. Submit for manufacture.
Test prototype support stand rail system and either modify or instruct manufacture of remainder.
Check structural integrity of LEBT mounting system and finalise design, engineering drawings and send for manufacture ready for arrival of solenoids.
Begin design studies for 4m RFQ.