| AVS 61st International Symposium & Exhibition | |
| Vacuum Technology | Wednesday Sessions |
| Session VT-WeM |
| Session: | Accelerator and Large Vacuum Systems I |
| Presenter: | Jason Carter, Argonne National Laboratory |
| Authors: | J. Carter, Argonne National Laboratory H. Cease, Argonne National Laboratory |
| Correspondent: | Click to Email |
A conceptual design is being developed for a storage ring vacuum system at the Advanced Photon Source (APS) which is compatible with a seven‐bend achromat lattice under consideration by the APS Upgrade (APS‐U) project. The design features a hybrid vacuum system to address outgassing and thermal loads which will combine discrete pumping, NEG-coated copper chambers, and NEG strip pumping in conventional extruded aluminum chambers. A preliminary 3D vacuum pressure analysis is described which uses the SynRad/MolFlow+ 3D vacuum analysis package developed at CERN to determine if the system can meet pressure requirements. The analysis uses the software package to predict photon stimulated desorption loads and then determine the resulting vacuum system pressure.