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RIS citation export for MOPOB10: Design of the HGVPU Undulator Vacuum Chamber for LCLS-II

AU - Lerch, J.E.
AU - Carter, J.A.
AU - Den Hartog, P.K.
AU - Wiemerslage, G.E.
ED - Schaa, Volker RW
ED - Power, Maria
ED - Shiltsev, Vladimir
ED - White, Marion
TI - Design of the HGVPU Undulator Vacuum Chamber for LCLS-II
J2 - Proc. of NAPAC2016, Chicago, IL, USA, October 9-14, 2016
C1 - Chicago, IL, USA
T2 - North American Particle Accelerator Conference
T3 - 3
LA - english
AB - A vacuum chamber has been designed and prototyped for the new Horizontal Gap Vertically Polarization Undulator (HGVPU) as part of the LCLS-II upgrade project. Numerous functional requirements for the HGVPU assembly constrained the vacuum chamber design. These constraints included spatial restrictions to achieve small magnet gaps, narrow temperature and alignment specifications, and minimization of wall erosion and pressure drop within the cooling channels. This led to the design of a 3.5-meter length, thin walled, extruded aluminium chamber with interior water cooling. FEA stress analysis was performed to ensure the chamber will not fail under vacuum and water pressure. A cooling scheme was optimized to ensure water flow is sufficient to maintain temperature without the risk of erosion and to minimize pres-sure drop across the chamber.
CP - Geneva, Switzerland
SP - 89
EP - 91
KW - ion
KW - vacuum
KW - alignment
KW - undulator
KW - operation
DA - 2017/01
PY - 2017
SN - 978-3-95450-180-9
DO - 10.18429/JACoW-NAPAC2016-MOPOB10
UR - https://jacow.org/napac2016/papers/mopob10.pdf
ER -