Design and Analysis of the PXIE CW Radio-frequency Quadrupole (RFQ)

Conference · Tue May 01 00:00:00 EDT 2012 · Conf.Proc.

OSTI ID:1406550

Virostek, S. P. ^[1]; Hoff, M. D. ^[1]; Lambert, A. ^[1]; Li, D. ^[1]; Staples, J. W. ^[1]; Romanov, G. V. ^[2]; Zhang, C. ^[3]

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1. LBL, Berkeley
2. Fermilab
3. Frankfurt U.

The Project X Injector Experiment (PXIE) will be a prototype front end of the Project X accelerator proposed by Fermilab. PXIE will consist of an H- ion source, a low-energy beam transport (LEBT), a radio-frequency quadrupole (RFQ) accelerator , a medium-energy beam transport (MEBT) and a section of superconducting cryomodules that will accelerate the beam from 30 keV to 30 MeV. LBNL has developed an RFQ design for PXIE with fabrication scheduled to begin before the end of CY 2012. The chosen b aseline design is a four-vane, 4.4 m long CW RFQ with a resonant frequency at 162.5 MHz (2.4 wavelengths long). The RFQ will provide bunching and acceleration of a nominal 5 mA H- beam to 2.1 MeV. The relatively low wall power density results in wall powe r losses that are less than 100 kW. The beam dynamics design has been optimized to allow for more than 99% beam capture with exceptionally low longitudinal emittance. The RFQ mechanical design and the results of RF and thermal analyses are presented here.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1406550
• Report Number(s): FERMILAB-CONF-12-624-TD; IPAC-2012-THPPC034; 1126767
• Journal Information: Conf.Proc., Vol. C1205201; Conference: 3rd International Particle Accelerator Conference, New Orleans, Louisiana, 05/20-05/25/2012
• Country of Publication: United States
• Language: English

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43 PARTICLE ACCELERATORS