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FCCee beam transfer meeting #7 : special integration
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Europe/Zurich
Participants:
W. Bartmann, L. Bromiley, Y. Dutheil, F. Valchkova-Georgieva, S. Yue
- Booster location
- No longer in between the 2 collider rings
- Present location is now around 160mm from the middle
- Agreement that we can presently consider the booster still in the middle of the collider rings on the PB straight section because
- Symmetric design is simpler
- We can offset it slightly at a later point with minor changes to the transferline geometries
- We can use small chicanes at the entrance/exit of the straight section to bring the booster in the center
- Inside of the ring is reserved for transport so beam transfer on the outside would be favored
- Beam transfer lines presently use the inside of the ring, geometry and crossing do not favor outside placement
- Injection extraction equipment placement
- The kicker systems require equipment nearby with good shielding to avoid exposure to the tunnel radiation
- Present design
- Gallery only covers 330m on each side
- First alcove is ~700 beyond the end of the gallery
- Agreement that alcoves can be created where needed
- Question of the dump
- Present concept places the dump point 5m away from the collider
- Discussions with STI to be caried to keep or amend this value
- Needed inputs from ABT
- MADX output from the survey
- Only work within 1000m -> survey zero (0, 0, 0) at the crossing between the 2 collider trajectories at the center of PB
- ABT to send first MADX files no later than in 2 weeks
- Fani can start integrating and we can review the proposition in early may
- Need to include
- space reservation for the elements placed on the line
- Space reservation and locations for the alcoves
Actions
- ABT: share location and required space for equipment alcoves
- ABT: share MADX survey file before 17/04 of the PB lines
- Include envelopes of special ABT equipment
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