1. The CKOV support By P Lau

2. Hall space available to the Ckov & TOF 0 Beam line 3

3. 10 Space take up for the combined Cherenkov & TOF0

4. Requirements 1. Accessibility for maintenance for both CKOV1 and TOF0 on both sides of the beam line 2. Vertical and transverse remote adjustments to center on the beam Typically ~ +/- 5 cm horizontally and vertically 3. As much longitudinal free space as possible for safety purposes (rescue via crane in case of emergency) Proposal from meeting (PD, WL, GG) at RAL on May 3-4 Movable platform+ 10 /- 30 cm horizontally +/- 5 cm vertically Max load = 1 ton4

5. 2 proposals for CKOV support Proposal A Table size 1,820 (W) mm x 1,010 (D) mm Proposal B Table size is 1,400 (W) mm x 1,120 (D) mm

6. Proposal A - Isotropic View

7. Proposal A - The left most position in X direction

8. Proposal A - The right most position of the table in X-direction

9. Proposal A - End View

10. Proposal A – The Top View

11. Proposal B- Isotropic View

12. Proposal B – the left most position in X - direction

13. Proposal B- the right most position in X - direction

14. Proposal B - the end view

15. Proposal B – The Top View

16. Comment on Proposal A and B 1. More material, heavier in weight 2. No walk way between the wall shield and CKOV support 3. No one could get into the CKOV support area, can be argued as preventive from accident inside the CKOV support 4. Distance between the tracker and the front side of TOF0 is 405 mm 1. Less material 2. About 280 mm gap between the shield wall and CKOV support 3. In case of anyone falls down inside the CKOV support area, should have enough space to get him/her out 4. Distance between the tracker and the front side of TOF0 is 366 mm