D. Li et al., EXPERIMENTAL-MEASUREMENT OF RESONANCE ISLANDS INDUCED BY RF VOLTAGE MODULATION, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 48(3), 1993, pp. 180001638-180001641
Synchrotron motion with an external rf voltage modulation was studied
experimentally. Beam particles, in the presence of electron cooling, w
ere observed to damp to the basins of resonance islands, which were pr
oduced by the parametric resonance due to rf voltage modulation. The m
easured phase amplitudes of the centers of these resonance islands wer
e found to agree well with theory.