Title :
PEFP low-beta SRF cavity design
Author :
An, Sun ; Gao, C. ; Cho, Y.S. ; Choi, B.H.
Author_Institution :
PEFP, Taejon
Abstract :
An elliptical superconducting RF cavity of 700 MHz with betag=0.42 has been designed for the linac of the Proton Engineering Frontier Project (PEFP). A double-ring stiffening structure is used for a low-beta cavity for Lorentz force detuning. The results of the electron multipacting analysis of the cavity are presented. A HOM analysis shows that the HOM coupler´s Qext is lower than 3times105, thus reducing the influence of dangerous modes on the beam instabilities and the HOM-induced power.
Keywords :
accelerator RF systems; accelerator cavities; linear accelerators; particle beam stability; proton accelerators; proton beams; HOM analysis; Lorentz force detuning; PEFP; SRF cavity; beam instabilities; double-ring stiffening structure; electron multipacting analysis; elliptical superconducting RF cavity; frequency 700 MHz; higher order mode analysis; linac; proton beam; proton engineering frontier project; Acceleration; Frequency estimation; Linear particle accelerator; Lorentz covariance; Magnetic analysis; Magnetic fields; Optical coupling; Particle beams; Radio frequency; Shape;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4441184
