JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{alverson:icalepcs2023-thpdp086, author = {S.C. Alverson and D.K. Gill and S. Saraf}, title = {{LCLS-II Cryomodule Isolation Vacuum Pump System}}, % booktitle = {Proc. ICALEPCS'23}, booktitle = {Proc. 19th Int. Conf. Accel. Large Exp. Phys. Control Syst. (ICALEPCS'23)}, eventdate = {2023-10-09/2023-10-13}, pages = {1551--1555}, paper = {THPDP086}, language = {english}, keywords = {controls, PLC, cryomodule, vacuum, operation}, venue = {Cape Town, South Africa}, series = {International Conference on Accelerator and Large Experimental Physics Control Systems}, number = {19}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {02}, year = {2024}, issn = {2226-0358}, isbn = {978-3-95450-238-7}, doi = {10.18429/JACoW-ICALEPCS2023-THPDP086}, url = {https://jacow.org/icalepcs2023/papers/thpdp086.pdf}, abstract = {{The LCLS-II Project at SLAC National Accelerator is a major upgrade to the lab’s Free Electron Laser (FEL) facility adding a new injector and superconducting linac. In order to support this new linac, a vacuum pumping scheme was needed to isolate the liquid helium lines cooling the RF cavities inside the cryomodules from outside ambient heat as well as to exhaust any leaking helium gas. Carts were built with support for both roughing and high vacuum pumps and read back diagnostics. Additionally, a Programmable Logic Controller (PLC) was then configured to automate the pump down sequence and provide interlocks in the case of a vacuum burst. The design was made modular such that it can be manually relocated easily to other sections of the linac if needed depending on vacuum conditions. }}, }