SLIDE 1
2/1/2019
- S. Cheban | B 0.92 Cavity Safety Bracket Design
2
- 1
MAXIMUM AXIAL DEFORMATION
Temperature
Protection
Insulated Vacuum, bar Cavity Beamline, bar He Vessel, bar Forces on the cavity flange for fully constrained cavity, kN Cavity length changes, for non- constrained cavity, mm
1
Cavity after dressing 1 1 1
0.00
2
Cavity leak check at the clean room 1 1
- 3.83
- 1.10
3
He Vessel leak check during CM assembly 1 1
0.014
- 0.03
4
He Vessel pressure test during CM assembly 1 1 3.3
- 0.03
0.06
5
He Vessel leak check during CM testing 1
- 4.4
- 1.10
6
He Vessel pressure test during CM assembly 1 3.3
- 3.87
- 1.01
5K 7
Start of cooling down CM or HTS 1.5
- 0.02
0.04
2K 8
Operating condition 0.03
0.00
5K 9
Cold loss of vacuum accident 4
- 0.05
0.10 The steps during cavity assembly or operations
Tcavity=300K
Safety Brackets Tuner Installed
Ma Maxim ximum um sa safe e axial xial de defor
- rmation
tion for
- r b=
b=0.92 .92 cavit vity y is is 0.7 .70 mm mm
“Tuner-Trust Table” for b=0.92 cavity
Cavity Beamline He Vessel Insulated Vacuum From Timergali Khabiboulline Spool, Transition Field Probe Safety Brackets