2026-10-06T22:19:50Z https://www.scidb.cn/oai

10.57760/sciencedb.46200 2026-08-13T17:01:40Z

2026-08-13 Error data of laser plasma accelerator doi:10.57760/sciencedb.46200 en Owing to their ultrahigh accelerating gradients, laser-driven proton accelerators (LPAs) have the potential to enable compact proton radiotherapy systems. A key challenge for their clinical application is to maintain beam delivery accuracy at the isocenter under both source-related beam fluctuations and element errors. In this work, we present a systematic error analysis of the beam delivery system of the Compact Laser Plasma Accelerator (CLAPA II) for proton therapy. Based on TraceWin simulations, input beam error (IBE) scans, segmented element error (EE) sensitivity analysis and start-to-end statistical error analysis are carried out to quantify the effects of mismatch, centroid and pointing jitter, magnet misalignment, tilt, and field errors on beam transmission, orbit deviation, and beam size. The results show that entrance Twiss mismatch has only a weak effect on the beam transmission. In contrast, entrance centroid and pointing jitter dominate the terminal orbit stability and particle survival. The response to element errors is strongly section dependent: In the beam collection section, solenoid tilts mainly drive orbit distortion, whereas field errors mainly affect the beam size. In the energy selection section, field errors mainly affect orbit distortion, beam size, and energy selection efficiency. In the beam shaping section, magnet misalignments mainly determine beam position, while field errors dominate beam size stability. Orbit correction strongly suppresses element error induced orbit distortion and relative particle loss, but is less effective against upstream losses caused by input beam variations. laser plasma accelerator; beam transport system; error data Zhang Xu PUBLIC https://creativecommons.org/licenses/by-nd/4.0 dataset Science Data Bank