80 likes | 186 Views
Damping Ring Injection and Extraction Region (DRIX). PT SLAC. Damping Rings. DRs share a 5 m ID tunnel One ring above another 1.444 m separation between beam center lines Plenty of room for an aisle, etc. Is the aisle on the inside or the outside of the ring?. Damping Rings (2).
E N D
Damping Ring Injection and Extraction Region (DRIX) PT SLAC Global Design Effort
Damping Rings • DRs share a 5 m ID tunnel • One ring above another • 1.444 m separation between beam center lines • Plenty of room for an aisle, etc. • Is the aisle on the inside or the outside of the ring? Global Design Effort
Damping Rings (2) Another view of the DR housing, where the wigglers sit one over another. Note the very large distance from the beam to the left wall of the tunnel. Global Design Effort
DR Inj / Ext lines (DRI / DRX) • Optics design done • Thanks, Ina! • DRI and DRX are definitely on the outside of the ring • Well, Duh! • Each side of DR complex has 1 DRI and 1 DRX • At same elevations as DRs • Final angles: • DRI: 242 mrad (13.9°) • DRX: 215 mrad (12.3°) Global Design Effort
LTR and RTML • LTR connects to DRI • DRX connects to RTML • All 4 beamlines sit together in 1 tunnel • Tangent to DR tunnel • Has a service tunnel • Current optics has an x offset between LTR and RTML • Max value ~2 m • Easy to adjust • Source and RTML continue straight off the left edge of the figure Global Design Effort
LTR and RTML (2) Better View of the Central Injector Complex Tunnels, etc. Note that tunnels are 4.5 m ID, like the main linac tunnel. Both sides need to have cryomodules for sources; e+ side also needs KAS and e+ transfer line from undulator Global Design Effort
LTR and RTML (3) Reminder of what a 4.5 m ID tunnel with cryomodules and a bunch of other beamlines looks like inside Are there any personnel crossovers between the LTR/RTML beam tunnel and the service tunnel? Global Design Effort
My Preference • Keep the source and RTML lines at the elevations of their DRs, all the way out to the escalator beamlines 1 km away • Can e- cryomodules be on the ceiling? • Does this really work in a 4.5 m ID tunnel? • Make the e+ DR the lower of the two • Positron KAS can rest on the tunnel floor • What does the area with the KAS, e+ CMs, e- RTML beamline look like, anyway? • Put the DR on the outside of the DR tunnel, put the aisle on the inside • Put the LTR/RTML aisle on the side of the beamline furthest from the DR • What important questions and issues have I missed? Global Design Effort