Coming away from Q6 - baseline vacuum installation - red - b2
| start | end | ||
| VIKH.A6R7.M | flange on Q6 | 20217.7634 | 20217.7634 |
| VADL.6R7.C | Sector Valves | 20216.4374 | 20217.0924 |
| ? | |||
| VMACB.6R7.R | Vacuum Modules DN100 [0.3 m] | 20215.2924 | 20215.5924 |
| VCDQO.6R7.R | Vacuum - Chamber - Circular - Drift space - standard 80 mm [4.3820 m] | 20210.9104 | 20215.2924 |
| VMHSB.B6R7.R | Vacuum Modules [0.3 m] | 20210.6104 | 20210.9104 |
This brings us to the position of MBW.D6R7 (D4) which starts at 20210.6104. This won't be there of course.
If we push on down with a 7 m temporary section of vacuum chamber this brings us to 20203.6104.
Compatible with DCUM location 20202.39 for FBCT suggested by Rhodri.
However all sorts of stuff has to be installed on beam 1 - including a TCLA - would imagine that b2 components would be in the way - so temporary all the way might well be best.
In this case - assume sector valves in place and put in two 7 m. sections - this bring us to 20302.4 - which is the DCUM location 20202.39 for FBCT suggested by Rhodri.