Induced Beam Oscillations from Quadrupole Vibrations in the SLC Linac
نویسندگان
چکیده
Linac beams in the Stanford Linear Collider (SLC) were driven into oscillation by transverse vibration of lattice quadrupoles at about 7 Hz. These quadrupoles are centered on 12-meter support girders located early in the linac. The vibrations were caused by ground motion at the 0.06 l.tm level which was amplified in the accelerator supports up to 5 pm. Seismic and support vibration measurements were Fourier analyzed and a strong correlation with beam observations was observed. Subsequent modifications of the supports have eliminated these oscillations.
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