A Novel Approach for Automatic Control of Piezoelectric Elements Used for Lorentz Force Detuning Compensation

Abstract: Linear accelerators such as Free Electron Lasers (FELs) use superconducting (SC) resonant cavities to accelerate electron beam to high energies. TESLA type resonators are extremely sensitive to detuning induced by mechanical deformations – Lorentz force detuning (LFD), mainly due to the ex...

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Detalles Bibliográficos
Autores principales: Przygoda, K, Pozniak, T, Napieralski, A, Grecki, M
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: 2010
Materias:
Accelerators and Storage Rings
10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Acceso en línea:http://cds.cern.ch/record/1237819
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author Przygoda, K
Pozniak, T
Napieralski, A
Grecki, M
author_facet Przygoda, K
Pozniak, T
Napieralski, A
Grecki, M
author_sort Przygoda, K
collection CERN
description Abstract: Linear accelerators such as Free Electron Lasers (FELs) use superconducting (SC) resonant cavities to accelerate electron beam to high energies. TESLA type resonators are extremely sensitive to detuning induced by mechanical deformations – Lorentz force detuning (LFD), mainly due to the extremely high quality factor (Q) of the 1.3 GHz resonance mode, in the range of 1e6. The resulting modulation of a resonance frequency of the cavity makes power consumption and stability performances of the Low-Latency Radio Frequency (LLRF) control more critical. In order to minimize the RF control efforts and desired stabilities, the fast piezoelectric actuators with digital control systems are commonly used. The paper presents a novel approach for automatic control of piezoelectric actuators used for compensation of Lorentz force detuning, the practical application and carried out tests in accelerating module ACC6 in Free-Electron Laser in Hamburg (FLASH).
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spelling cern-12378192019-09-30T06:29:59Z http://cds.cern.ch/record/1237819 eng Przygoda, K Pozniak, T Napieralski, A Grecki, M A Novel Approach for Automatic Control of Piezoelectric Elements Used for Lorentz Force Detuning Compensation Accelerators and Storage Rings 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs Abstract: Linear accelerators such as Free Electron Lasers (FELs) use superconducting (SC) resonant cavities to accelerate electron beam to high energies. TESLA type resonators are extremely sensitive to detuning induced by mechanical deformations – Lorentz force detuning (LFD), mainly due to the extremely high quality factor (Q) of the 1.3 GHz resonance mode, in the range of 1e6. The resulting modulation of a resonance frequency of the cavity makes power consumption and stability performances of the Low-Latency Radio Frequency (LLRF) control more critical. In order to minimize the RF control efforts and desired stabilities, the fast piezoelectric actuators with digital control systems are commonly used. The paper presents a novel approach for automatic control of piezoelectric actuators used for compensation of Lorentz force detuning, the practical application and carried out tests in accelerating module ACC6 in Free-Electron Laser in Hamburg (FLASH). info:eu-repo/grantAgreement/EC/FP7/227579 info:eu-repo/semantics/openAccess Education Level info:eu-repo/semantics/article http://cds.cern.ch/record/1237819 2010
spellingShingle Accelerators and Storage Rings
10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Przygoda, K
Pozniak, T
Napieralski, A
Grecki, M
A Novel Approach for Automatic Control of Piezoelectric Elements Used for Lorentz Force Detuning Compensation
title A Novel Approach for Automatic Control of Piezoelectric Elements Used for Lorentz Force Detuning Compensation
title_full A Novel Approach for Automatic Control of Piezoelectric Elements Used for Lorentz Force Detuning Compensation
title_fullStr A Novel Approach for Automatic Control of Piezoelectric Elements Used for Lorentz Force Detuning Compensation
title_full_unstemmed A Novel Approach for Automatic Control of Piezoelectric Elements Used for Lorentz Force Detuning Compensation
title_short A Novel Approach for Automatic Control of Piezoelectric Elements Used for Lorentz Force Detuning Compensation
title_sort novel approach for automatic control of piezoelectric elements used for lorentz force detuning compensation
topic Accelerators and Storage Rings
10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
url http://cds.cern.ch/record/1237819
http://cds.cern.ch/record/1237819
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