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August 27: Experience with a Virtual Multi-Slit Phase Space Diagnostic at Fermilab’s FAST Facility
Date: August 28 27 at 3pm
Speaker: Auralee Edelen
Abstract: We discuss an ML-based virtual diagnostic for multi-slit beam measurements at the Fermilab Accelerator Science and Technology Facility (FAST). At FAST, a multi-slit diagnostic setup is used to obtain information about the transverse electron beam phase space. In addition to being a destructive measurement, the process of conducting this measurement at multiple points along the machine (e.g. before and after the chicane) is time-consuming. Here, we use a learned representation of the low-energy portion of the machine to provide estimates of the multi-slit measurement after the second superconducting capture cavity. The result is a fast-executing tool that uses present machine settings to give an online prediction of the resultant multi-slit measurement without the need to repeatedly insert the intercepting diagnostic. This work is particularly relevant to ongoing efforts at FACET-II and LCLS/LCLS-II to create similar kinds of virtual diagnostic tools for prediction and, ultimately, control of the longitudinal phase space.
September 10: Phase retrieval
Date: September 10 at 3pm
Speaker: Felix Heide
Abstract: TBA
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