Conveners
Material, cavities and cryomodules R&D
- Akira Yamamoto (High Energy Accelerator Research Organization (JP))
Enzo Palmieri
(INFN)
12/04/2016, 13:30
Superconducting RF
Oral
Sarah Katharina Aull
(CERN)
12/04/2016, 13:50
Superconducting RF
Oral
In contrast to bulk niobium, the use of niobium on copper coated SRF cavities allows operation at 4.5 K due to the lower BCS resistance and the high thermal stability of the copper substrate. Moreover, Nb/Cu technology lowers significantly production cost for cavities as well as the cryo modules as coated cavities do not require magnetic shielding. This talk will present the latest advances in...
Alexander Romanenko
(Fermilab)
12/04/2016, 14:10
Superconducting RF
Oral
Recent years have seen a tremendous progress in fundamental understanding of physical mechanisms limiting the performance of superconducting radio frequency (SRF) cavities, enabled by implementation of new research techniques, and exploring new materials such as Nb3Sn.
Accelerating gradient limit of SRF cavities both of Nb and Nb3Sn was shown to be higher than Hc1, providing a tantalizing...
Anne-Marie Valente-Feliciano
(Jefferson Lab)
12/04/2016, 14:30
Superconducting RF
Oral
With the development of energetic vacuum deposition techniques, high quality Nb films have been produced supporting the promise of high RF performance. A Nb/Cu thin film deposited by ECR (electron cyclotron resonance) plasma has shown a significantly improved Q-slope, at 4 K and 400 MHz, compared to magnetron sputtered Nb films. Another category of ECR Nb films show first flux penetration at...
emanuela barzi
(Fermilab)
12/04/2016, 14:45
Superconducting RF
Oral
Two different electro-chemical deposition techniques, both under US Patent Application No. 62/190, 199, to produce Nb3Sn coatings have been studied in the last few years by FNAL in collaboration with Politecnico di Milano.
In the first technique, the Nb3Sn phase is obtained by electrodeposition from aqueous solutions of Sn layers and Cu intermediate layers onto Nb substrates followed by...
