Pulse-to-pulse Beam Modulation and Event-based Beam Feedback System at KEKB Linac - Physics > Accelerator PhysicsReportar como inadecuado




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Abstract: Beam injections to KEKB and Photon Factory are performed with pulse-to-pulsemodulation at 50 Hz. Three very different beams are switched every 20 ms inorder to inject those beams into KEKB HER, LER and Photon Factory PFsimultaneously. Human operators work on one of those three virtualaccelerators, which correspond to three-fold accelerator parameters. Beamcharges for PF injection and the primary electron for positron generation are50-times different, and beam energies for PF and HER injection are 3-timesdifferent. Thus, the beam stabilities are sensitive to operational parameters,and if any instability in accelerator equipment occurred, beam parameteradjustments for those virtual accelerators have to be performed. In order tocure such a situation, beam energy feedback system was installed that canrespond to each of virtual accelerators independently.



Autor: Kazuro Furukawa, Masanori Satoh, Tsuyoshi Suwada, Tatsuro Nakamura

Fuente: https://arxiv.org/







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