Title :
A copper 3.9 GHz TM110 cavity for emittance exchange
Author :
Koeth, T.W. ; Fliller, R.P., III ; Bellantoni, L. ; Edwards, D.A. ; Edwards, H.T.
Author_Institution :
Rutgers Univ., Piscataway
Abstract :
An experiment is being developed at the FNAL Photoinjector Lab to demonstrate the exchange of longitudinal emittance with a transverse horizontal emittance. The longitudinal electric field of a TM110 cavity vanishes on axis and increases linearly with transverse displacement. This "shearing" electric field is pivotal to the exchange. The design of this TM110 cavity is a variant of the Fermilab 3.9 GHz superconducting deflecting mode cavity; however, the cavity was constructed of OFHC copper. The authors report on the construction, field flatness, polarization and high power testing of a TM110 cavity.
Keywords :
accelerator RF systems; accelerator cavities; copper; electric fields; proton accelerators; superconducting cavity resonators; synchrotrons; FNAL Photoinjector Lab; Fermilab 3.9 GHz superconducting deflecting mode cavity; copper 5-cell 3.9GHz TM10 cavity; field flatness; frequency 3.9 GHz; high power testing; longitudinal electric field; longitudinal emittance exchange; polarization; shearing electric field; transverse horizontal emittance; Copper; Cryogenics; Klystrons; Niobium; Optical beams; Polarization; Radio frequency; Shearing; Structural beams; Superconducting transmission lines;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440526
