Document Type
Conference Paper
Publication Date
2022
DOI
10.18429/JACoW-LINAC2022-THPOGE19
Publication Title
LINAC 2022: Proceedings of the 31st International Linear Accelerator Conference
Pages
836-839
Conference Name
31st International Linear Accelerator Conference, 28 August- 2 September, 2022, Liverpool, United Kingdom
Abstract
Over the past few decades, bulk niobium (Nb) has been the material of choice for superconducting radio frequency (SRF) cavities used in particle accelerators to achieve higher accelerating gradients and lower RF losses. Multi-layer (SIS) structures consisting of alternating thin layers of superconductor(S) and insulator(I) deposited on a bulk Nb have been proposed to enhance the peak surface magnetic field and sustain a higher accelerating gradient. In this study, multilayers based NbTiN and AlN deposited on bulk Nb are used to test the proposed enhancement using the DC magnetic Hall probe technique. The technique detects a penetrating magnetic field through the multilayer sample as it is placed under an external mag-netic field produced by a magnetic coil. This work reports the characterization and measurements of the magnetic field of full flux penetration through single layers of NbTiN and bilayers of NbTiN/AlN on bulk Nb.
Rights
Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license. Any further distribution of this work must maintain attribution to the authors, the published article's title, publisher, and DOI.
Original Publication Citation
Senevirathne, I.H., Gurevich, A., Delayen, J.R., Beverstock, D.R. & Valente-Feliciano, A.M. (2022) Field shielding of NʙT��N based multilayer structure for accelerating cavities. In P. McIntosh, G. Burt, R. Apsimon, & V.R.W. Schaa (Eds.), LINAC 2022: Proceedings of the 31st International Linear Accelerator Conference (pp. 836-839). JACoW. https://doi.org/10.18429/JACoW-LINAC2022-THPOGE19
ORCID
0000-0003-0126-8335 (Senevirathne), 0000-0003-0759-8941 (Gurevich)
Repository Citation
Senevirathne, Iresha Harshani; Delayen, Jean R.; Gurevich, Alex; Beverstock, D. R.; and Valente-Feliciano, A.-M., "Field Shielding of NBT��N Based Multilayer Structure for Accelerating Cavities" (2022). Physics Faculty Publications. 720.
https://digitalcommons.odu.edu/physics_fac_pubs/720