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Title: MgB2-Coated Superconducting Radio Frequency Cavities for Next-Generation Accelerators

Abstract

Radio-frequency cavities are at the heart of particle accelerators used for nuclear and high-energy physics research, medical treatment, pollution control, clean energy production, development of new materials, and national security. The most advanced accelerators utilize cavities that are made from superconducting materials. However, the performance of these cavities is reaching a fundamental limit, and they are very expensive to fabricate and operate. Hence, next-generation accelerators require development of advanced cavities. One promising approach to greatly improving the performance and reducing cost is to coat the inner surfaces of these cavities with superconducting thin film materials having certain critical properties. Magnesium diboride is a superconductor that can meet these requirements. Depositing thin films of this compound is challenging, though an approach based on reactive evaporation has yielded superb results. We propose to develop equipment and methods that will advance the state-of-the-art of this thin-film coating technology and extend its capability in order to enable deposition of high-quality magnesium diboride thin films onto the inner surfaces of real-world elliptical superconducting radio-frequency cavities. During Phase I of this project we planned to produce and test simple three-dimensional cavity resonators coated with our material. We also explored and modeled hardware designs and process methodologiesmore » to produce more complicated real-world resonators that have been developed for advanced accelerators.« less

Authors:
;
Publication Date:
Research Org.:
STAR Cryoelectronics LLC
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1582508
Report Number(s):
DOE-STARCRYO-18659
DOE Contract Number:  
SC0018659
Type / Phase:
SBIR (Phase I)
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; MgB2, cavity, SRF

Citation Formats

Moeckly, Brian, and Cantor, Robin. MgB2-Coated Superconducting Radio Frequency Cavities for Next-Generation Accelerators. United States: N. p., 2020. Web.
Moeckly, Brian, & Cantor, Robin. MgB2-Coated Superconducting Radio Frequency Cavities for Next-Generation Accelerators. United States.
Moeckly, Brian, and Cantor, Robin. Mon . "MgB2-Coated Superconducting Radio Frequency Cavities for Next-Generation Accelerators". United States.
@article{osti_1582508,
title = {MgB2-Coated Superconducting Radio Frequency Cavities for Next-Generation Accelerators},
author = {Moeckly, Brian and Cantor, Robin},
abstractNote = {Radio-frequency cavities are at the heart of particle accelerators used for nuclear and high-energy physics research, medical treatment, pollution control, clean energy production, development of new materials, and national security. The most advanced accelerators utilize cavities that are made from superconducting materials. However, the performance of these cavities is reaching a fundamental limit, and they are very expensive to fabricate and operate. Hence, next-generation accelerators require development of advanced cavities. One promising approach to greatly improving the performance and reducing cost is to coat the inner surfaces of these cavities with superconducting thin film materials having certain critical properties. Magnesium diboride is a superconductor that can meet these requirements. Depositing thin films of this compound is challenging, though an approach based on reactive evaporation has yielded superb results. We propose to develop equipment and methods that will advance the state-of-the-art of this thin-film coating technology and extend its capability in order to enable deposition of high-quality magnesium diboride thin films onto the inner surfaces of real-world elliptical superconducting radio-frequency cavities. During Phase I of this project we planned to produce and test simple three-dimensional cavity resonators coated with our material. We also explored and modeled hardware designs and process methodologies to produce more complicated real-world resonators that have been developed for advanced accelerators.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {1}
}

Technical Report:
This technical report may be released as soon as January 13, 2024
Other availability
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