IBIC2021 - List of Authors (Tassan-Viol, J.)

Paper	Title	Page
WEPP24	PSB H0-H⁻ Monitor Calibration and Commissioning	429
	A. Navarro Fernandez, D. Belohrad, C. Bracco, E. Renner, F. Roncarolo, J. Tassan-Viol CERN, Meyrin, Switzerland
	During the LHC Long Shutdown 2 (LS2), the H⁻ LINAC4 replaced the proton LINAC2 as Proton Synchrotron Booster (PSB) injector. In each of the four PSB rings, the injection region was upgraded to accommodate the necessary elements for a proper H⁻ charge exchange injection systems. Four internal beam dumps (one per ring), installed downstream the stripping foil, block the unstripped H⁻ particles not injected in the ring. The H0-H⁻ monitors consists in 4 titanium plates placed few centimetres upstream of the dump, intercepting partially stripped H⁰ or not stripped H⁻ ions. They allow a continuous monitoring of the stripping efficiency and, connected to an interlock system, block the injection process in case of heavy degradation or breakage of the foil, which would heavily damage the dumps. The contribution will focus on the commissioning and operation these new systems. This will include the calibration campaigns, performed by comparison to beam current transformers during special periods with low intensity beams and no stripping foils. During normal operation it was already possible to monitor stripping inefficiencies below 1% and compare different beams and stripping foil types.
	Poster WEPP24 [0.541 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-WEPP24
About •	paper received ※ 07 September 2021 paper accepted ※ 27 September 2021 issue date ※ 02 October 2021
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

PSB H0-H⁻ Monitor Calibration and Commissioning

429

A. Navarro Fernandez, D. Belohrad, C. Bracco, E. Renner, F. Roncarolo, J. Tassan-Viol
CERN, Meyrin, Switzerland

During the LHC Long Shutdown 2 (LS2), the H⁻ LINAC4 replaced the proton LINAC2 as Proton Synchrotron Booster (PSB) injector. In each of the four PSB rings, the injection region was upgraded to accommodate the necessary elements for a proper H⁻ charge exchange injection systems. Four internal beam dumps (one per ring), installed downstream the stripping foil, block the unstripped H⁻ particles not injected in the ring. The H0-H⁻ monitors consists in 4 titanium plates placed few centimetres upstream of the dump, intercepting partially stripped H⁰ or not stripped H⁻ ions. They allow a continuous monitoring of the stripping efficiency and, connected to an interlock system, block the injection process in case of heavy degradation or breakage of the foil, which would heavily damage the dumps. The contribution will focus on the commissioning and operation these new systems. This will include the calibration campaigns, performed by comparison to beam current transformers during special periods with low intensity beams and no stripping foils. During normal operation it was already possible to monitor stripping inefficiencies below 1% and compare different beams and stripping foil types.

Poster WEPP24 [0.541 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-WEPP24

About •

paper received ※ 07 September 2021 paper accepted ※ 27 September 2021 issue date ※ 02 October 2021

Export •

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