3 papers
physics.acc-ph2025
Experimental verification of space-charge saturation scaling laws in high-gradient photocathode RF guns
Paul Denham, David Garcia, Atharva Kulkarni +4
We investigate the limits of photoemission yield in a high-gradient S-band radiofrequency photoinjector in the space-charge-dominated regime. Using an RF phase-scan technique, wher…
astro-ph.SR2025
HiPERCAM and TESS observations of the rapidly rotating M7V star LP 89--187
Gavin Ramsay, J. G. Doyle, Stuart Littlefair +2
The discovery of a significant number of rapidly rotating low mass stars showing no or few flares in TESS observations was a surprise as rapid rotation has previously been taken as…
physics.acc-ph2025
Focusing of Relativistic Electron Beams With Permanent Magnetic Solenoid
T. Xu, C. J. R. Duncan, P. Denham +6
Achieving strong focusing of MeV electron beams is a critical requirement for advanced beam applications such as compact laboratory X-ray sources, high gradient accelerators, and u…