An over two-decade-long journey helped CERN scientists measure resonance that may cause particle loss in accelerators.
Particle accelerators produce and accelerate beams of charged particles, such as electrons, protons, and ions which can be linear or circular, of different sizes. In high-intensity circular particle accelerators, resonances can be an inconvenience, causing particles to fly off their course and resulting in beam loss.
The latest results will help to improve the beam quality for low-energy and high-brightness beams for the LHC injectors at CERN and the SIS18/SIS100 facility at GSI, as well as for high-energy beams with large luminosity, such as the LHC and future high-energy colliders.Predicting how resonances and non-linear phenomena affect particle beams requires some very complex dynamics to be disentangled. This led to scientists at SPS collaborating with their counterparts at GSI in Darmstadt.
Frank Schmidt from CERN, one of the paper’s authors, explained it required an enormous simulation effort by large accelerator teams to understand the effect of the resonances on beam stability.Giuliano Franchetti, a scientist at GSI and one of the paper’s authors said that with these resonances, what happens is that particles don’t follow exactly the path they want and then fly away and get lost.
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