1. VELO-installation meeting CERN, January 17, 2006
preparation IP8-area
SX8
moving SX8 -> IP8
IP8
UXA-C3 platform
cables
planning
19 January 2006
installation

2. preparation IP8-area
4 bolts for skates will only be bolted not bolted & glued.
height needed for hook of crane ??
install crane.
we drill holes for consoles for service platform
and for LV- and HV-boxes.
differential circuit breakers -> interaction
with magnet ON, i.e., problems with regular 220 V.
≤1 cm of surface of concrete console can be used
for egalisation. Correct ??
cleaned and painted.
beam lines on floor and wall. What length + more lines needed ??
TL-illumination
19 January 2006
installation

3. photogrammetry @ SX8 shaft 2.5 m free space needed on each side
Centre Frame
Fiducial Marks
2.5 m free space needed on each side
of VELO-tank
NIKHEF levels setup on floor
photogrammetry uses 5 fiducial points on
each side of center frame
NIKHEF makes
extensions for spheres
from 3 -> 20 mm
19 January 2006
installation

4. photogrammetry @ SX8 Next determine detector positions
via 8 reference points on the
“shell gauge”.
SHELL GAUGE
19 January 2006
installation

5. moving VELO SX8 -> IP8
VELO
corner
19 January 2006
installation

6. magnet moving VELO SX8 -> IP8 RICH1
Send actual VELO-dimensions (without hoods) to Olivier Jamet.
19 January 2006
installation

7. moving VELO SX8 -> IP8 Correct dimensions of skates assumed ??
19 January 2006
installation

8. alignment @ IP8 first RICH1 needs to be put back
rough positioning by NIKHEF by means of beam line projections
on floor and walls
precise alignment by CERN with theodolites:
Dx = Dy = Dz = 0.5 mm (1s)
Df = 0.1 mrad in polar angle
nominal position of detectors inside is based on reference marks
on the outside of the tank. This procedure requires rapid conversion
and feedback, i.e. preparation beforehand.
19 January 2006
installation

9. UXA-C3 platform layout in EDMS 679336 cable trays arrive at the top
do the cables enter PLC racks from top/bottom ??
how about Adriana’s rack ??
dimensions chiller racks ??
lekbak needed under chillers.
19 January 2006
installation

10. cables front view extra duct in existing trays top view
by middle of March
cable order needs to be
checked
pull cables a.s.a.p.
top view
19 January 2006
installation

11. planning
all IP-8 preparations done or almost done before we decide to move
arrival of CERN defines t=0
NIKHEF starts at t=-3 weeks
positioning and SX8 takes 1 week
going 100 m down + pass behind magnet to IP8 takes 1 week
put back RICH1 + rough positioning takes 1 week
install dust covers
iterative alignment procedure with theodolites takes 1 week
installation of pumps, pipes, power, etc. can then start
installation of service platform foreseen around mid April
when the mounting of connectors can start depends on pulling of cables.
final schedule will be made in the course of next week by
Rolf Lindner after news from exit foil + beam pipe.
in present preliminary schedule t=0 is on Wednesday March 15
-> start packing at NIKHEF on Wednesday February 22
-> 4.5 weeks left for testing at NIKHEF
19 January 2006
installation