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Title: Nb 3 Sn superconducting radiofrequency cavities: fabrication, results, properties, and prospects

Abstract

A microns-thick film of Nb3Sn on the inner surface of a superconducting radiofrequency (SRF) cavity has been demonstrated to substantially improve cryogenic efficiency compared to the standard niobium material, and its predicted superheating field is approximately twice as high. We review in detail the advantages of Nb3Sn coatings for SRF cavities. We describe the vapor diffusion process used to fabricate this material in the most successful experiments, and we compare the differences in the process used at different labs. We overview results of Nb3Sn SRF coatings, including CW and pulsed measurements of cavities as well as microscopic measurements. We discuss special considerations that must be practised when using Nb3Sn cavities in applications. Lastly, we conclude by summarizing the state-of-the-art and describing the outlook for this alternative SRF material.

Authors:
ORCiD logo;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1341257
Alternate Identifier(s):
OSTI ID: 1341258; OSTI ID: 1353387
Report Number(s):
FERMILAB-PUB-17-133-TD
Journal ID: ISSN 0953-2048
Grant/Contract Number:  
AC02-07CH11359; SC0008431
Resource Type:
Published Article
Journal Name:
Superconductor Science and Technology
Additional Journal Information:
Journal Name: Superconductor Science and Technology Journal Volume: 30 Journal Issue: 3; Journal ID: ISSN 0953-2048
Publisher:
IOP Publishing
Country of Publication:
United Kingdom
Language:
English
Subject:
43 PARTICLE ACCELERATORS; superconducting cavities; niobium–tin; particle accelerators; superconducting thin films; superconducting materials

Citation Formats

Posen, S., and Hall, D. L. Nb 3 Sn superconducting radiofrequency cavities: fabrication, results, properties, and prospects. United Kingdom: N. p., 2017. Web. doi:10.1088/1361-6668/30/3/033004.
Posen, S., & Hall, D. L. Nb 3 Sn superconducting radiofrequency cavities: fabrication, results, properties, and prospects. United Kingdom. doi:10.1088/1361-6668/30/3/033004.
Posen, S., and Hall, D. L. Mon . "Nb 3 Sn superconducting radiofrequency cavities: fabrication, results, properties, and prospects". United Kingdom. doi:10.1088/1361-6668/30/3/033004.
@article{osti_1341257,
title = {Nb 3 Sn superconducting radiofrequency cavities: fabrication, results, properties, and prospects},
author = {Posen, S. and Hall, D. L.},
abstractNote = {A microns-thick film of Nb3Sn on the inner surface of a superconducting radiofrequency (SRF) cavity has been demonstrated to substantially improve cryogenic efficiency compared to the standard niobium material, and its predicted superheating field is approximately twice as high. We review in detail the advantages of Nb3Sn coatings for SRF cavities. We describe the vapor diffusion process used to fabricate this material in the most successful experiments, and we compare the differences in the process used at different labs. We overview results of Nb3Sn SRF coatings, including CW and pulsed measurements of cavities as well as microscopic measurements. We discuss special considerations that must be practised when using Nb3Sn cavities in applications. Lastly, we conclude by summarizing the state-of-the-art and describing the outlook for this alternative SRF material.},
doi = {10.1088/1361-6668/30/3/033004},
journal = {Superconductor Science and Technology},
number = 3,
volume = 30,
place = {United Kingdom},
year = {2017},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1088/1361-6668/30/3/033004

Citation Metrics:
Cited by: 4 works
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    Works referencing / citing this record:

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