TY - CONF TI - Potential-well distortion and mode-mixing instability in proton machines AB - In proton machines, potential-well distortion leads to small amount of bunch lengthening with minimal head-tail asymmetry. Longitudinal mode-mixing instability occurs at higher azimuthal modes. When the driving resonance is of broad-band, the threshold corresponds to the Boussard-modified Keil-Schnell criterion for microwave instability. When the driving resonance is narrower than the bunch spectrum, the threshold corresponds to a similar criterion derived before. The thresholds are higher when the machine operates below transition. (author) AU - "Ng, King-Yuen [Fermi National Accelerator Lab., Batavia, IL (United States)]" KW - "43 PARTICLE ACCELERATORS" KW - "BEAM DYNAMICS" KW - "CYCLIC ACCELERATORS" KW - "PROTON BEAMS" KW - "INSTABILITY" KW - "POTENTIALS" KW - "MIXING" KW - "BEAM BUNCHING" KW - "ELECTROMAGNETIC FIELDS" KW - "RESONANCE" KW - "PHASE SPACE" DO - https://doi.org/ UR - https://www.osti.gov/etdeweb/servlets/purl/461180 PB - CY - Japan PY - 1996 DA - 1996-08-01 LA - English J2 - [] VL - C1 - National Lab. for High Energy Physics, Tsukuba, Ibaraki (Japan) C2 - C3 - KEK-PROC-96-6; CONF-9506279- C4 - C5 - OSTI as DE97729548 L3 - Conference: CEIBA95: international workshop on collective effects and impedance for B-factories, Tsukuba (Japan), 12-17 Jun 1995; Other Information: PBD: Aug 1996; Related Information: Is Part Of Proceedings of the international workshop on collective effects and impedance for B-factories (CEIBA95); Chin, Yongho [ed.]; PB: 531 p. ER -