7–11 Sept 2025
Teaching Hub 502
Europe/London timezone

Physics-Guided Data Expansion for Photocathodes Using TESS Transverse Momentum Measurements

MOPCO15
8 Sept 2025, 16:00
2h
Courtyard, Liverpool Guild of Students

Courtyard, Liverpool Guild of Students

Liverpool Guild of Students, University of Liverpool.
Poster Presentation MC07: Data Acquisition and Processing Platforms MOPCO

Speaker

Saransh Malhotra (University of Liverpool, Cockcroft Institute)

Description

Precise characterisation of photocathode mean transverse energy is critical for optimising electron beam quality. This paper presents a physics-informed image processing pipeline using Transverse Energy Spread Spectrometer data (231–291 nm), incorporating Gaussian PSF fitting, Wiener deconvolution, resolution equalisation, and noise-aware augmentation. A high-fidelity dataset of 6500 synthetic images was generated, achieving average SSIM = 0.997 and $ R^2 \approx 0.98 $, enabling robust MTE prediction and supporting future ML-based diagnostics for next-generation photoinjectors.

Funding Agency

This work was supported by STFC through the LIV.INNO CDT (ST/W006766/1), the ASTeC core grant, and the Cockcroft Institute core grant (ST/V001612/1).

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Author

Saransh Malhotra (University of Liverpool, Cockcroft Institute)

Co-authors

Lee Jones (ASTeC, STFC Daresbury Laboratory, Cockcroft Institute) Carsten Welsch (University of Liverpool, Cockcroft Institute) Narender Kumar (University of Liverpool, Cockcroft Institute)

Presentation materials

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