19–24 May 2024
Music City Center
US/Central timezone

Optimizations for ultrafast electron diffraction with a cryogenic C-band gun

THPC10
23 May 2024, 16:00
2h
Country (MCC Exhibit Hall A)

Country

MCC Exhibit Hall A

Poster Presentation MC5.D01 Beam Optics Lattices, Correction Schemes, Transport Thursday Poster Session

Speaker

Chad Pennington (Cornell University (CLASSE))

Description

Ultrafast electron diffraction (UED) is a growing accelerator application that enables the study of transient material processes at sub-picosecond timescales with nanometer spatial resolution. In this proceeding, we present simulations of the Cryogenic Brightness-Optimized Radiofrequency Gun (CYBORG) beamline using the General Particle Tracer (GPT) code that are optimized for the application of UED. We explore advantages of performing UED with a beamline equipped with a low intrinsic emittance photocathode, extraction fields approaching 200 MV/m, and a cathode temperature below 77 K. The electron beam bunch length and the 4D transverse emittance are critical metrics for achieving high spatial and temporal resolution in UED, and are minimized at the sample location in our optimization using a Non-Dominated Sorting Genetic Algorithm II (NSGA II).

Funding Agency

The Center for Bright Beams, NSF

Region represented North America
Paper preparation format LaTeX

Primary author

Chad Pennington (Cornell University (CLASSE))

Co-authors

Adam Bartnik (Cornell University (CLASSE)) Fabio Bosco (University of California, Los Angeles) Gerard Lawler (University of California, Los Angeles) James Rosenzweig (University of California, Los Angeles) Jared Maxson (Cornell University)

Presentation materials

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