Mechanical analysis of the PEFP medium-beta SRF cavity

For the extension of the existing 100-MeV PEFP (Proton Engineering Frontier Project) proton linac up to a 1-GeV machine, a study of the RF linac based on RF superconductivity technology is underway. The operating frequency of the PEFP SCL (superconducting linac) is 700 MHz, which is determined by th...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the Korean Physical Society 2013, 63(7), , pp.1302-1306
Main Author: Kim, Han-Sung
Format: Article
Language:English
Subjects:
Mathematical and Computational Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Theoretical
물리학
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:For the extension of the existing 100-MeV PEFP (Proton Engineering Frontier Project) proton linac up to a 1-GeV machine, a study of the RF linac based on RF superconductivity technology is underway. The operating frequency of the PEFP SCL (superconducting linac) is 700 MHz, which is determined by the fact that the frequency of the existing normal conducting linac is 350 MHz. A preliminary study of the beam dynamics shows that two types of cavities with geometrical betas of 0.50 and 0.74 can cover the entire energy range from 100 MeV to 1 GeV. The baseline design of the SRF (superconducting radio frequency) cavity is an elliptical shape with a reduced beta. The reduced-beta elliptical cavity is vulnerable to structural instability; therefore, mechanical analyses, such as vacuum pressure deformation, static Lorentz force detuning and natural mode frequency analyses, were performed by using a finite-element-method code. The mechanical analysis procedures and the results will be given in this paper.
ISSN:0374-4884
1976-8524
DOI:10.3938/jkps.63.1302