120 citations · 138 across the 5 of their papers we have counts for
5 papers
Extreme diffusion limited electropolishing of niobium radiofrequency cavities
Anthony C. Crawford
A deeply modulated, regular, continuous, oscillating current waveform is reliably and repeatably achieved during electropolishing of niobium single-cell elliptical radiofrequency c…
Demagnetization of a Complete Superconducting Radiofrequency Cryomodule: Theory and Practice
Anthony C. Crawford, Saravan K. Chandrasekaran
A significant advance in magnetic field management in a fully assembled superconducting radiofrequency cryomodule has been achieved and is reported here. Demagnetization of the ent…
Ultra-high quality factors in superconducting niobium cavities in ambient magnetic fields up to 190 mG
A. Romanenko, A. Grassellino, A. C. Crawford +2
Ambient magnetic field, if trapped in the penetration depth, leads to the residual resistance and therefore sets the limit for the achievable quality factors in superconducting nio…
A Study of Magnetic Shielding Performance of a Fermilab International Linear Collider Superconducting RF Cavity Cryomodule
Anthony C. Crawford
This note presents measurements that support the conclusion that it is feasible to achieve magnetic field values at the level of 5 milliGauss for a cryomodule in a realistic and re…
A Study of Thermocurrent Induced Magnetic Fields in ILC Cavities
Anthony C. Crawford
The case of axisymmetric ILC type cavities with titanium helium vessels is investigated. A first order estimate for magnetic field within the SRF current layer is presented. The in…