LINAC2018 - List of Keywords (instrumentation)

Paper	Title	Other Keywords	Page
TUPO106	Mathematical Principle and Numerical Reconstruction in Real Space Measurement with a Rotating BPM	pick-up, diagnostics, beam-diagnostic, emittance	560
	P. Jiang, Y. He, Z.J. Wang IMP/CAS, Lanzhou, People’s Republic of China
	It is difficult to measure beam profiles and monitor the beam during beam supply for high intensity high power accelerators. Based on the button pick-ups, the mathematical principle of a rotating BPM is proposed. SVD method is used to reconstruct the beam in x-y real space, and the basic parameters used in beam reconstruction are argued. The beam distribution in x-y real space is reconstructed well and compared to the reference beam. The beam reconstruction is sensitive to the electrode radius. The meshing and the grid numbers in the solution window have an import effect on the beam reconstruction.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-TUPO106
About •	paper received ※ 12 September 2018 paper accepted ※ 19 September 2018 issue date ※ 18 January 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPO086	Beam Loss and Average Beam Current Measurements Using a CWCT	proton, electronics, electron, diagnostics	882
	F. Stulle, H. Bayle, J.F. Bergoz, T. Delaviere, L. Dupuy BERGOZ Instrumentation, Saint Genis Pouilly, France P. Forck, M. Witthaus GSI, Darmstadt, Germany D. Vandeplassche SCK•CEN, Mol, Belgium J.X. Wu IMP/CAS, Lanzhou, People’s Republic of China
	The CWCT is a novel instrument adapted to an accurate average current determination of bunched CW beams or macro pulses. By combining a high-droop current transformer with novel electronics for signal analysis, an output signal bandwidth of DC to about 500kHz and a current resolution down to the micro-ampere level are achieved. Beam current fluctuations are followed within microseconds, permitting fast detection of beam loss. These characteristics render the CWCT an ideal instrument for HPPAs, for example ADS linacs, and other proton or ion accelerators. We present the CWCT principle and the CWCT performance achieved in beam experiments at UNILAC, GSI.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO086
About •	paper received ※ 11 September 2018 paper accepted ※ 20 September 2018 issue date ※ 18 January 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUPO106

Mathematical Principle and Numerical Reconstruction in Real Space Measurement with a Rotating BPM

pick-up, diagnostics, beam-diagnostic, emittance

560

P. Jiang, Y. He, Z.J. Wang
IMP/CAS, Lanzhou, People’s Republic of China

It is difficult to measure beam profiles and monitor the beam during beam supply for high intensity high power accelerators. Based on the button pick-ups, the mathematical principle of a rotating BPM is proposed. SVD method is used to reconstruct the beam in x-y real space, and the basic parameters used in beam reconstruction are argued. The beam distribution in x-y real space is reconstructed well and compared to the reference beam. The beam reconstruction is sensitive to the electrode radius. The meshing and the grid numbers in the solution window have an import effect on the beam reconstruction.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-TUPO106

About •

paper received ※ 12 September 2018 paper accepted ※ 19 September 2018 issue date ※ 18 January 2019

Export •

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

THPO086

Beam Loss and Average Beam Current Measurements Using a CWCT

proton, electronics, electron, diagnostics

882

F. Stulle, H. Bayle, J.F. Bergoz, T. Delaviere, L. Dupuy
BERGOZ Instrumentation, Saint Genis Pouilly, France
P. Forck, M. Witthaus
GSI, Darmstadt, Germany
D. Vandeplassche
SCK•CEN, Mol, Belgium
J.X. Wu
IMP/CAS, Lanzhou, People’s Republic of China

The CWCT is a novel instrument adapted to an accurate average current determination of bunched CW beams or macro pulses. By combining a high-droop current transformer with novel electronics for signal analysis, an output signal bandwidth of DC to about 500kHz and a current resolution down to the micro-ampere level are achieved. Beam current fluctuations are followed within microseconds, permitting fast detection of beam loss. These characteristics render the CWCT an ideal instrument for HPPAs, for example ADS linacs, and other proton or ion accelerators. We present the CWCT principle and the CWCT performance achieved in beam experiments at UNILAC, GSI.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO086

About •

paper received ※ 11 September 2018 paper accepted ※ 20 September 2018 issue date ※ 18 January 2019

Export •

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