Forskningsoutput per år
Forskningsoutput per år
Sammanfattning
This thesis is dedicated to the design and analysis of superconducting
elliptical cavities. Elliptical cavities play a central role in modern particle ac-
celerators due to their high efficiency. After an introduction to the European
Spallation Source project, the thesis goes through the design of the medium-β
cavity. The RF design of the inner cell and end cell are presented in sequence
in paper I . The design is completed by the chapter on the mechanical perfor-
mances of the cavity (paper II).
Papers III, IV and V are instead dedicated to the analysis of the cavity.
The necessary mathematical tools for the analysis are presented in paper III
which, after stating fundamental results on hollow cavities, presents a spec-
tral decomposition used in the following papers. In paper IV, a time-domain
model for the power dissipation induced by the excited higher-order-modes is
presented. Such modes are excited by the particle beam that passes through
the cavity and are detrimental to the performances of the accelerator. Paper
V presents a time-domain model of the cavity coupled to an externa circuit to
a coupler. The model is functional to the design of the cavity control system.
elliptical cavities. Elliptical cavities play a central role in modern particle ac-
celerators due to their high efficiency. After an introduction to the European
Spallation Source project, the thesis goes through the design of the medium-β
cavity. The RF design of the inner cell and end cell are presented in sequence
in paper I . The design is completed by the chapter on the mechanical perfor-
mances of the cavity (paper II).
Papers III, IV and V are instead dedicated to the analysis of the cavity.
The necessary mathematical tools for the analysis are presented in paper III
which, after stating fundamental results on hollow cavities, presents a spec-
tral decomposition used in the following papers. In paper IV, a time-domain
model for the power dissipation induced by the excited higher-order-modes is
presented. Such modes are excited by the particle beam that passes through
the cavity and are detrimental to the performances of the accelerator. Paper
V presents a time-domain model of the cavity coupled to an externa circuit to
a coupler. The model is functional to the design of the cavity control system.
| Originalspråk | engelska |
|---|---|
| Kvalifikation | Doktor |
| Tilldelande institution |
|
| Handledare |
|
| Tilldelningsdatum | 2017 feb. 3 |
| Förlag | |
| ISBN (tryckt) | 978-91-7753-096-1 |
| ISBN (elektroniskt) | 978-91-7753-097-8 |
| Status | Published - 2017 jan. 9 |
Bibliografisk information
Defence detailsDate: 2017-02-03
Time: 10:15
Place: lecture hall E:1406, building E, Ole Römers väg 3, Lund University, Faculty of Engineering LTH, Lund
External reviewer
Name: Seviour, Rebecca
Title: professor
Affiliation: Huddersfield University, Huddersfield, UK
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Ämnesklassifikation (UKÄ)
- Annan elektroteknik och elektronik
Fingeravtryck
Utforska forskningsämnen för ”Design and Analysis of the Medium-β Elliptical Cavities for the European Spallation Source Accelerator”. Tillsammans bildar de ett unikt fingeravtryck.Forskningsoutput
- 1 Artikel i vetenskaplig tidskrift
-
Time domain analysis of higher order modes induced power dissipation in accelerating cavities
Costanza, G. & Karlsson, A., 2017 nov. 22, I: Journal of Electromagnetic Waves and Applications. 31, 17, s. 1843-1863Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review