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CERN Document Server 2,034 records found  1 - 10nextend  jump to record: Search took 0.42 seconds. 
1.
(100)
A Study of Beam Position Diagnostics with Beam-excited Dipole Higher Order Modes using a Downconverter Test Electronics in Third Harmonic 3.9 GHz Superconducting Accelerating Cavities at FLASH   / Zhang, P (The University of Manchester / DESY / The Cockcroft Institute) ; Baboi, N (DESY) ; Eddy, N (FNAL) ; Fellenz, B (FNAL) ; Jones, R M (The University of Manchester / The Cockcroft Institute) ; Lorbeer, B (DESY) ; Wamsat, T (DESY) ; Wendt, M (FNAL)
WP: 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Task: 10.5: HOM Distribution

Beam-excited higher order modes (HOM) in accelerating cavities contain transverse beam position information. [...]
EuCARD-REP-2012-007. - 2012.
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2.
(50)
A study of beam position diagnostics using beam-excited dipole modes in third harmonic superconducting accelerating cavities at a free-electron laser   / Zhang, P (Manchester U. ; DESY ; Cockcroft Inst. Accel. Sci. Tech.) ; Baboi, N (DESY) ; Jones, R M (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Shinton, I R R (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Flisgen, T (Rostock U.) ; Glock, H W (Rostock U.)
WP: 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Task: 10.5: HOM Distribution

We investigate the feasibility of beam position diagnostics using Higher Order Mode (HOM) signals excited by an electron beam in the third harmonic 3.9 GHz superconducting accelerating cavities at FLASH. [...]
EuCARD-PUB-2012-010. - 2012.
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3.
(45)
Performance of a downconverter test-electronics with MTCA-based digitizers for beam position monitoring in 3.9GHz accelerating cavities   / Wamsat, T (DESY) ; Baboi, N (DESY) ; Lorbeer, B (DESY) ; Zhang, P (The University of Manchester / DESY / The Cockcroft Institute)
WP: 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Task: 10.5: HOM Distribution

Beam-excited higher order modes (HOM) in 3.9GHz accelerating cavities are planned to be used for beam position monitoring at the European XFEL. [...]
EuCARD-CON-2012-029. - 2012.
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4.
(45)
Status of higher order mode beam position monitors in 3.9 GHz superconducting accelerating cavities at FLASH   / Zhang, P (The University of Manchester / DESY / The Cockcroft Institute) ; Baboi, N (DESY) ; Jones, R M (The University of Manchester / The Cockcroft Institute) ; Flisgen, T (The University of Rostock) ; Van Rienen, U (The University of Rostock) ; Shinton, I R R (The University of Manchester / The Cockcroft Institute)
WP: 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Task: 10.5: HOM Distribution

Higher order mode (HOM) beam position monitors (BPM) are being developed for the 3.9 GHz third harmonic superconducting accelerating cavities at FLASH. [...]
EuCARD-CON-2013-002. - 2013.
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5.
(44)
Higher order mode spectra and the dependence of localized dipole modes on the transverse beam position in third harmonic superconducting cavities at FLASH   / Zhang, P (The University of Manchester / DESY / The Cockcroft Institute) ; Baboi, N (DESY) ; Jones, R M (The University of Manchester / The Cockcroft Institute)
WP: 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Task: 10.5: HOM Distribution

An electron beam entering an accelerating cavity excites a wakefield. [...]
EuCARD-REP-2012-006. - 2012.
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6.
(42)
HOM Choice Study with Test Electronics for Use as beam Position Diagnostics in 3.9 GHz Accelerating Cavities in FLASH   / Baboi, N (DESY) ; Lorbeer, B (DESY) ; Zhang, P (DESY) ; Eddy, N (FNAL) ; Fellenz, B (FNAL) ; Wendt, M (FNAL)
WP: 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Task: 10.5: HOM Distribution

Higher Order Modes (HOM) excited by the beam in the 3.9 GHz accelerating cavities in FLASH can be used for beam position diagnostics, as in a cavity beam position monitor. [...]
EuCARD-CON-2012-027. - 2012.
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7.
(41)
HOM characterization for beam diagnostics at the european XFEL injector / Baboi, Nicoletta (DESY) ; Hellert, Thorsten (DESY and University of Hamburg) ; Shi, Liangliang (DESY and Manchester University) ; Wamsat, Thomas, DESY ; Jones, Roger M (Cockcroft Institute and Manchester University) ; Joshi, Nirav (Cockcroft Institute and Manchester University)
Higher Order Modes (HOM) excited by bunched electron beams in accelerating cavities carry information about the beam position and phase. This principle is used at the FLASH facility, at DESY, for beam position monitoring in 1.3 and 3.9 GHz cavities. [...]
CERN-ACC-2017-0046.- Geneva : CERN, 2017 - Published in : Fulltext: PDF;
In : International Beam Instrumentation Conference, Barcelona, Spain, 11 - 15 Sep 2016, pp.WEPG03
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8.
(38)
Resolution study of higher-order-mode-based beam position diagnostics using custom-built electronics in strongly coupled 3.9 GHz multi-cavity accelerating module   / Zhang, P (Manchester U. ; DESY ; Cockcroft Inst. Accel. Sci. Tech.) ; Baboi, N (DESY) ; Jones, R M (The University of Manchester / The Cockcroft Institute) ; Eddy, N (FNAL)
WP: 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Task: 10.5: HOM Distribution

Beam-excited higher order modes (HOMs) can provide remote diagnostics information of the beam position and cavity misalignment. [...]
EuCARD-PUB-2012-011. - 2012.
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9.
(38)
Commissioning of the electronics for HOM-based beam diagnostics at the 3.9 GHz accelerating module at FLASH / Baboi, N (DESY) ; Hensler, O (DESY) ; Wamsat, T (DESY) ; Shi, L (UNIMAN) ; Eddy, N (FNAL) ; Fellenz, B (FNAL) ; Zhang, P (CERN)
Transverse Higher Order Modes (HOM) excited by electron beams in the 3.9GHz accelerating cavities at FLASH may damage the beam quality. They can be reduced by extracting their energy through special couplers and by aligning the beam in the cavity. [...]
CERN-ACC-2014-0210.- Geneva : CERN, 2014 - Published in : Fulltext: PDF;
In : International Beam Instrumentation Conference, Tsukuba, Japan, 1 - 4 Oct 2012
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10.
(32)
Study of Beam Diagnostics with Trapped Modes in 3rd Harmonic SC Cavities at FLASH   / Zhang, P (The University of Manchester;DESY;The Cockcroft Institute of Accelerator Science and Technology) ; Baboi, N (DESY) ; Jones, R M (The University of Manchester;The Cockcroft Institute of Accelerator Science and Technology) ; Shinton, I R R (The University of Manchester;The Cockcroft Institute of Accelerator Science and Technology)
WP: 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Task: 10.5: HOM Distribution

Off-axis beams passing through an accelerating cavity excite dipole modes among other higher order modes (HOMs). [...]
EuCARD-PRE-2011-003. - 2011.
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