Speaker
Description
In this paper, we present the orbit response matrix (ORM) measurements for the SPEAR3 booster obtained using a set of Libera Spark ERXR beam-position processors. The turn-by-turn acquisition capability of these processors enables continuous tracking of the beam trajectory throughout the full energy ramp prior to injection into SPEAR3. This dataset provides sufficient resolution to extract the booster’s optical functions and to perform ORM-based fitting of lattice errors such as quadrupole strength deviations and magnet roll angles in the Accelerator Toolbox (AT) model. The resulting refinements to the machine model have contributed to improved understanding and mitigation of beam-loss mechanisms, thereby enhancing the beam capture from the linac-to-booster (LTB) transport line and injection efficiency into SPEAR3.
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