17–22 May 2026
C.I.D
Europe/Zurich timezone

Accuracy and Stability of Lattice Correction in the APS Upgrade

TUP2308
19 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC2.A05: Synchrotron Radiation Facilities Poster session

Speaker

Vadim Sajaev (Argonne National Laboratory)

Description

A well-corrected lattice is essential for the performance of any modern synchrotron light source. Beyond the standard motivations -- such as preserving optimized nonlinear dynamics and maintaining sufficient dynamic and momentum acceptance -- accurate lattice correction is particularly important in APS-U for achieving the predicted emittance reduction associated with insertion-device radiation. In APS-U, lattice characterization relies on response-matrix fitting. Simulations performed during the design phase indicated that the achievable accuracy of such measurements would be limited to the few-percent level, thereby constraining the ultimate lattice correction precision. This paper presents the typical results of the APS-U lattice correction, examines approaches to improving lattice measurement accuracy, and discusses the long-term stability of the corrected lattice.

Funding Agency

Work is supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357

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Author

Vadim Sajaev (Argonne National Laboratory)

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