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Improving Superconducting Radiofrequency Cavity Performance Through Surface Characterization and New Polishing Techniques
Improving Superconducting Radiofrequency Cavity Performance Through Surface Characterization and New Polishing Techniques
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211153025
- ISBN
- 9798346857204
- DDC
- 620.11
- 저자명
- Viklund, Eric.
- 서명/저자
- Improving Superconducting Radiofrequency Cavity Performance Through Surface Characterization and New Polishing Techniques
- 발행사항
- [Sl] : Northwestern University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 112 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-06, Section: B.
- 주기사항
- Advisor: Seidman, David N.
- 학위논문주기
- Thesis (Ph.D.)--Northwestern University, 2024.
- 초록/해제
- 요약Superconducting radiofrequency cavities are an essential component in modern particle accelerators for transferring RF power to the particle beam. SRF cavity performance is determined by the first 10 nm to 100 nm of the superconducting material. Therefore, it is essential to study this region. One parameter of the surface morphology that is particularly important is surface roughness. Surface roughness is theorized to have a large impact on cavity performance due to magnetic field enhancement and superheating field suppression. In this thesis, two types of SRF cavity materials are studied. I show research towards improving our understanding of electropolishing (EP) utilizing electrochemical impedance spectroscopy (EIS). The relationship between Nb oxide formation and surface etching is investigated. The second material under study is Nb3Sn. Nb3Sn SRF cavities are more complex due to the presence of multiple elements and the complexity of thin film deposition. Nb3Sn thin films are studied to characterize their microstructure using 3D FIB tomography and a new mechanical polishing method is used to improve their surface roughness.
- 일반주제명
- Materials science
- 일반주제명
- Analytical chemistry
- 일반주제명
- Electrical engineering
- 키워드
- Cavities
- 키워드
- Niobium
- 키워드
- Radiofrequency
- 키워드
- Electropolishing
- 기타저자
- Northwestern University Materials Science and Engineering
- 기본자료저록
- Dissertations Abstracts International. 86-06B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211153025
■006m o d
■007cr#unu||||||||
■020 ▼a9798346857204
■035 ▼a(MiAaPQ)AAI31633643
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a620.11
■1001 ▼aViklund, Eric.▼0(orcid)0000-0003-1982-0597
■24510▼aImproving Superconducting Radiofrequency Cavity Performance Through Surface Characterization and New Polishing Techniques
■260 ▼a[Sl]▼bNorthwestern University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a112 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-06, Section: B.
■500 ▼aAdvisor: Seidman, David N.
■5021 ▼aThesis (Ph.D.)--Northwestern University, 2024.
■520 ▼aSuperconducting radiofrequency cavities are an essential component in modern particle accelerators for transferring RF power to the particle beam. SRF cavity performance is determined by the first 10 nm to 100 nm of the superconducting material. Therefore, it is essential to study this region. One parameter of the surface morphology that is particularly important is surface roughness. Surface roughness is theorized to have a large impact on cavity performance due to magnetic field enhancement and superheating field suppression. In this thesis, two types of SRF cavity materials are studied. I show research towards improving our understanding of electropolishing (EP) utilizing electrochemical impedance spectroscopy (EIS). The relationship between Nb oxide formation and surface etching is investigated. The second material under study is Nb3Sn. Nb3Sn SRF cavities are more complex due to the presence of multiple elements and the complexity of thin film deposition. Nb3Sn thin films are studied to characterize their microstructure using 3D FIB tomography and a new mechanical polishing method is used to improve their surface roughness.
■590 ▼aSchool code: 0163.
■650 4▼aMaterials science
■650 4▼aAnalytical chemistry
■650 4▼aElectrical engineering
■653 ▼aCavities
■653 ▼aNiobium
■653 ▼aRadiofrequency
■653 ▼aElectropolishing
■653 ▼aElectrochemical impedance spectroscopy
■690 ▼a0794
■690 ▼a0544
■690 ▼a0486
■71020▼aNorthwestern University▼bMaterials Science and Engineering.
■7730 ▼tDissertations Abstracts International▼g86-06B.
■790 ▼a0163
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164632▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
