Status of the Cern-Karlsruhe Superconducting RF Particle Separator
- 1 June 1975
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 22 (3) , 1144-1147
- https://doi.org/10.1109/tns.1975.4327831
Abstract
The present status of the rf separator is given. Measurements of single cavity sections and of two joined sections are reported. The problem of storing heat treated sections until final assembly has been investigated. Flooding a cavity at room temperature with nitrogen deteriorates its performance, after the cavity was once excited to a peak electric field of 30 MV/m, corresponding to a peak magnetic field of 850 G and a deflecting field of 5.5 MV/m. This effect is assumed to be due to a sensibilization of the surface oxides by field emission electrons. The effect is not observed after a electric field of up to 15 MV/m and it also does not appear when the cavity is flooded with argon.Keywords
This publication has 5 references indexed in Scilit:
- Gas exposure tests of high field niobium X-band cavitiesApplied Physics A, 1974
- A method for localizing cells of enhanced surface resistance and magnetic break-downs in multi-cell superconducting rf-cavitiesNuclear Instruments and Methods, 1974
- TE011 X-band niobium cavity with critical magnetic flux density higher than Bc1Physics Letters A, 1973
- RF-Tests on Deflecting Cavities for a Superconductinig Particle SeparatorIEEE Transactions on Nuclear Science, 1973
- Recent Measurements at SLAC on Superconducting Niobium X-Band CavitiesIEEE Transactions on Nuclear Science, 1973