1. BA6 – crab cavity activities in EYETS
G.Vandoni

2. System architecture in SPS
BA6 – surface area
RF power amplifiers IOT
Warm Cryogenics
Racks, utilities
PA6 - shaft
RF power coaxials
Warm Cryo pipework
Cables
TA6 – alcove & access tunnel
Cryo distribution line
CC SPS test stand
See next slide
Cold-box & Valve box
New handling equipment

3. Crab cavity SPS test stand
Helium pumps
Valve-box2
Service module
RF power, loads & circulators
Vacuum sectorization valve
Vacuum sectorization valve
Y-chamber
Transfer table
Transport lane
Cryo-module
All this, after YETS2018.
Y-chamber

4. Objectives of EYETS BA6 – surface area PA6 - shaft
Supports for heavy stuff
Warm Cryo pipework
Cables
RF power coaxials
PA6 - shaft
RF power coaxials
Warm Cryo pipework
Cables
TA6 – alcove & access tunnel
Cryo distribution line
CC SPS test stand
Cables
New vacuum sector
RF power coaxials
Cryo distribution line
Cables
New handling equipment
Floor preparation
RF power coaxials
New handling equipment

5. Co-activity

6. Co-activity – Dec / Jan

7. Co-activity – Feb / Mar

8. Main activities What Start Finish Duration Comments Magnet campaign
9/1
13/1
1 wk
No obstruction of transport lane
Scaffolding, crab zone
5/1
6/1
2 days
Removal 28/2
Scaffolding, LSS6
16/1
20/1
Removal 1/3
Cabling
17/1
13/3
8 weeks
BA6, shaft, TA6, tunnel.
Not compatible with welding (shaft)
Cryo line installation
23/1
28/2
5 weeks
Pressure test at night, 27/2
Handling equipment, TA6 alcove
20/12
5 days
Handling equipment, crab zone
7/3
15/3
10 days
Zone free from anything, only EN/HE
Cryo warm pipework, BA6
27/1
3 weeks
Pipe segments installation, welding
Cryo warm pipework, shaft
15/12 “

9. Zones
Crab zone
LSS6 tunnel
TA6 tunnel
TA6 alcove

10. Scaffolding
Scaffold 2
Scaffold 1
Scaffold 2
Scaffold 2
Platform

11. Cryogenic distribution line (“the QRL”)

12. Open issues
I will define better the sequence in each zone (for example in BA6 surface bdg.) with your help.
Can EN/EL deal with removal of the cable tray and yellow support from the crab cavity zone and all along the tunnel?
Are INSTALLATION of scaffold in the tunnel and cabling campaign in the tunnel compatible, can they be done at the same time?
Can TE/CRG work (a bit more) in parallel on the warm cryogenic pipework in BA6 and shaft? This activity determines the start of the cabling campaign.