Effect of 805-MHz Linac RF Stability on Beam Losses in LANSCE High-Energy Beamlines

Yuri Batygin, Schaa, Volker RW (Ed.), Satogata, Todd (Ed.)
Operation of an accelerator facility critically depends on stability of the field amplitudes and phases of the accelerating cavities. The LANSCE linear accelerator consists of a 201.25-MHz, drift-tube linac and an 805-MHz, side-coupled-cavity linac (SCL). Beam losses in the high-energy beamlines of the 800-MeV facility were measured versus variation of the amplitudes and phases of the 805-MHz, SCL, RF cavities. A recent study* confirms that to achieve low losses, the stability of the amplitudes
more » ... y of the amplitudes and phases should be kept within 0.1% and 0.1o, respectively. This agrees with a previous study of beam losses in the 201.25-MHz linac. Details of the measurements and results are presented.
doi:10.18429/jacow-ipac2018-tupal034 fatcat:lgc47o7lrveb3b2mknsm6jaaqu