IBIC2016 - List of Authors (Wendt, M.)

Paper	Title	Page
MOPG12	A Wire-Based Methodology to Analyse the Nanometric Resolution of an RF Cavity BPM	63
	S. Zorzetti, K. Artoos, F.N. Morel, P. Novotny, D. Tshilumba, M. Wendt CERN, Geneva, Switzerland L. Fanucci Università di Pisa, Pisa, Italy
	Funding: The PACMAN project is funded by the European Union's Seventh Framework Programme for research, technological development and demonstration under grant agreement no. 606839 Resonant Cavity Beam Position Monitors (RF-BPMs) are diagnostic instruments capable of achieving beam position resolutions down to the nanometre scale. To date, their nanometric resolution capabilities have been predicted by simulation and verified through beam-based measurements with particle beams. In the frame of the PACMAN project at CERN, an innovative methodology has been developed to directly observe signal variations corresponding to nanometric displacements of the BPM cavity with respect to a conductive stretched wire. The cavity BPM of this R&D study operates at the TM110 dipole mode frequency of 15GHz. The concepts and details of the RF stretched wire BPM test-bench to achieve the best resolution results are presented, along with the required control hardware and software.
	Poster MOPG12 [1.692 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG12
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TUPG46	Improvements to the LHC Schottky Monitors	453
	M. Wendt, M. Betz, O.R. Jones, T. Lefèvre, T.E. Levens CERN, Geneva, Switzerland
	The LHC Schottky monitors have the potential to measure and monitor some important beam parameters, tune, momentum spread, chromaticity and emittance, in a non-invasive way. We present recent upgrade and improvement efforts of the transverse LHC Schottky systems operating at 4.8 GHz. This includes optimization of the slotted waveguide pickups and a re-design of the RF front-end electronics to detect the weak, incoherent Schottky signals in presence of large, coherent beam harmonics.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG46
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

A Wire-Based Methodology to Analyse the Nanometric Resolution of an RF Cavity BPM

63

S. Zorzetti, K. Artoos, F.N. Morel, P. Novotny, D. Tshilumba, M. Wendt
CERN, Geneva, Switzerland
L. Fanucci
Università di Pisa, Pisa, Italy

Funding: The PACMAN project is funded by the European Union's Seventh Framework Programme for research, technological development and demonstration under grant agreement no. 606839
Resonant Cavity Beam Position Monitors (RF-BPMs) are diagnostic instruments capable of achieving beam position resolutions down to the nanometre scale. To date, their nanometric resolution capabilities have been predicted by simulation and verified through beam-based measurements with particle beams. In the frame of the PACMAN project at CERN, an innovative methodology has been developed to directly observe signal variations corresponding to nanometric displacements of the BPM cavity with respect to a conductive stretched wire. The cavity BPM of this R&D study operates at the TM110 dipole mode frequency of 15GHz. The concepts and details of the RF stretched wire BPM test-bench to achieve the best resolution results are presented, along with the required control hardware and software.

Poster MOPG12 [1.692 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-MOPG12

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPG46

Improvements to the LHC Schottky Monitors

453

M. Wendt, M. Betz, O.R. Jones, T. Lefèvre, T.E. Levens
CERN, Geneva, Switzerland

The LHC Schottky monitors have the potential to measure and monitor some important beam parameters, tune, momentum spread, chromaticity and emittance, in a non-invasive way. We present recent upgrade and improvement efforts of the transverse LHC Schottky systems operating at 4.8 GHz. This includes optimization of the slotted waveguide pickups and a re-design of the RF front-end electronics to detect the weak, incoherent Schottky signals in presence of large, coherent beam harmonics.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG46

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)