Pushing the Gradient Limitations of Superconducting Photonic Band Gap Structure Cells

Conference · Thu Jun 07 04:00:00 EDT 2012

OSTI ID:1043489

Simakov, Evgenya I ^[1]; Haynes, William B ^[1]; Kurennoy, Sergey S ^[1]; Shchegolkov, Dmitry ^[1]; O'Hara, James F ^[1]; Olivas, Eric R ^[1]

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1. Los Alamos National Laboratory

Superconducting photonic band gap resonators present us with unique means to place higher order mode couples in an accelerating cavity and efficiently extract HOMs. An SRF PBG resonator with round rods was successfully tested at LANL demonstrating operation at 15 MV/m. Gradient in the SRF PBG resonator was limited by magnetic quench. To increase the quench threshold in PBG resonators one must design the new geometry with lower surface magnetic fields and preserve the resonator's effectiveness for HOM suppression. The main objective of this research is to push the limits for the high-gradient operation of SRF PBG cavities. A NCRF PBG cavity technology is established. The proof-of-principle operation of SRF PBG cavities is demonstrated. SRF PBG resonators are effective for outcoupling HOMs. PBG technology can significantly reduce the size of SRF accelerators and increase brightness for future FELs.

• Research Organization: Los Alamos National Laboratory (LANL)
• Sponsoring Organization: DOD
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1043489
• Report Number(s): LA-UR-12-22006
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
MAGNETIC FIELDS
OPERATION
RF SYSTEMS
SUPERCONDUCTING CAVITY RESONATORS