Beam loading compensation for the NLC low frequency linacs

Technical Report · Sat Mar 01 00:00:00 EST 1997

DOI:https://doi.org/10.2172/666088· OSTI ID:666088

Li, Z; Miller, R; Farkas, D; Raubenheimer, T; Tang, H; Yeremian, D

The NLC low rf linacs are heavily loaded by a beam of about 130 ns in macropulse length (90 bunches) and a current up to 2.75 Amps. Beam loading voltage generates a large energy spread along the bunch train. This energy spread is critical for lattice design and, if not properly compensated, induces emittance growth and in turn lowers the luminosity of the machine. In this paper, the authors study the {Delta}F and {Delta}T beam loading compensation techniques for the NLC low rf linacs. They will apply these methods to the NLC low rf linacs to demonstrate the efficacy of these methods. Finally, they discuss a hybrid {Delta}T + {Delta}F method to improve the efficiency of beam loading compensation.

• Research Organization: Stanford Univ., Stanford Linear Accelerator Center, CA (US)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 666088
• Report Number(s): SLAC-PUB-7429; ON: DE98059103; TRN: US200305%%1112
• Resource Relation: Other Information: Supercedes report DE98059103; PBD: Mar 1997; PBD: 1 Mar 1997
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
DESIGN
EFFICIENCY
LINEAR ACCELERATORS
LUMINOSITY