Speaker
Description
Optimizing RF gun performance is critical for achieving electron beams with the desired parameters in particle accelerators. For the RF gun commissioning of the GBS LINAC at ELI-NP, RF gun phase scan and beam emittance measurement have been studied.
The gun phase scan simulation integrates Python-based Gaussian waveform generation with an EPICS control system and a Qt Designer–based user interface. The system models realistic Integrating Current Transformer (ICT) responses over RF phase angles ranging from −90° to +90°, enabling real-time visualization of beam charge as a function of RF phase. Dual ICT detector readings provide independent validation, while automated phase scanning combined with safety interlocks facilitates systematic optimization of the injection phase for maximum beam energy.
The emittance module simulates beam profiles by generating two-dimensional intensity distributions along with their projected profiles. Beam matrix elements are extracted from the measured intensity distributions to calculate the beam emittance. Together, these tools enable comprehensive beam quality assessment, covering both charge optimization and spatial distribution characterization.
This predictive capability significantly reduces commissioning time and resource consumption by identifying optimal operating parameters prior to hardware testing. The presentation will discuss the simulation algorithms, system architecture, and representative simulation results.
