Suppression of the Beam Instability Related to Electron Cloud at Pep-ii B-factory*
نویسندگان
چکیده
PEP-II B-factory operates at a record high circulating current currently ~2.5 A in the positron ring. Electron cloud effects became apparent [1] when the positron ring current reached ~ 0.7 A with a bunch current ~1.5 mA. Initially, electron cloud induced beam instabilities significantly limited collider luminosity [2]. However, suppression of the electron cloud related beam instabilities have been achieved with ~30 Gauss solenoids covering the drift sections of LER vacuum chamber.
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