IBIC2016 - List of Authors (Ben Abdillah, M.)

Paper	Title	Page
TUPG09	Novel Electrostatic Beam Position Monitors With Enhanced Sensitivity	333
	M. Ben Abdillah IPN, Orsay, France
	Beam Position Monitors (BPM) measure the beam transverse position, the beam phase with respect to the radiofrequency voltage, and give an indication on beam transverse shape. Electrostatic BPMs are composed of four electrodes that transduce the associated electromagnetic field to the beam into electrical signal allowing the calculation of the beam parameters mentioned above. During commissioning and/or experiences phases that needs very low beam current; the precision of the BPM measurements is reduced due to the low sensitivity of electrostatic BPM to beam current. This paper addresses the design, the realization and the testing of a new set of electrostatic BPMs with large electrodes. It emphasizes the strong points of these BPMs in comparison with BPMs present in SPIRAL2 facility
	Poster TUPG09 [0.770 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG09
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TUPG34	First Results from the IPHI Beam Instrumentation	413
	P. Ausset, M. Ben Abdillah, S. Berthelot, C. Joly, J. Lesrel, J.-F. Yaniche IPN, Orsay, France D. Bogard, B. Pottin, D. Uriot CEA/DSM/IRFU, France
	I.P.H.I. is a High Intensity Proton Injector (C.N.R.S/I.N.2P.3; C.E.A./Irfu and C.E.R.N. collaboration) located at Saclay and now on operation. An E.C.R. source produces a 100 keV, 100 mA C.W. proton beams which will be accelerated at 3 MeV by a 4 vanes R.F.Q. operating at 352.2 MHz. Finally, a High Energy Beam Transport Line (H.E.B.T.) delivers the beam to a beam stopper. The HEBT is equipped with appropriate beam diagnostics to carry beam current, centroid beam transverse position, transverse beam profiles, beam energy and energy spread measurements for the commissioning of I.P.H.I. These beam diagnostics operate under both pulsed and C.W. operation. However transverse beam profile measurements are acquired under low duty factor pulsed beam operation using a slow wire scanner. The beam instrumentation of the H.E.B.T. is reviewed and the first measurements at 3 MeV are described.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG34
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WEPG11	Operation of the Beam Position Monitor for the Spiral 2 Linac on the Test Bench of the RFQ	642
	P. Ausset, M. Ben Abdillah, F. Fournier IPN, Orsay, France S.K. Bharade, G. Joshi, P.D. Motiwala BARC, Trombay, Mumbai, India R. Ferdinand, D.T. Touchard GANIL, Caen, France
	The SPIRAL2 project is based on a multi-beam superconducting LINAC designed to accelerate 5 mA deuteron beams up to 40 MeV, proton beams up to 33 MeV and 1 mA light and heavy ions (Q/A = 1/3) up to 14.5 MeV/A. The accurate tuning of the LINAC is essential for the operation of SPIRAL2 and requires measurement of the beam transverse position, the phase of the beam with respect to the radiofrequency voltage, the ellipticity of the beam and the beam energy with the help of Beam Position Monitor (BPM) system. The commissioning of the RFQ gave us the opportunity to install a BPM sensor, associated with its electronics, mounted on a test bench. The test bench is a D-plate fully equipped with a complete set of beam diagnostic equipment in order to characterize as completely as possible the beam delivered by the RFQ and to gain experience with the behavior of these diagnostics under beam operation. This paper addresses the first measurements carried with the BPM on the D-plate: intensity, phase, transverse position and ellipticity under 750 keV proton beam operation
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-WEPG11
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Novel Electrostatic Beam Position Monitors With Enhanced Sensitivity

333

M. Ben Abdillah
IPN, Orsay, France

Beam Position Monitors (BPM) measure the beam transverse position, the beam phase with respect to the radiofrequency voltage, and give an indication on beam transverse shape. Electrostatic BPMs are composed of four electrodes that transduce the associated electromagnetic field to the beam into electrical signal allowing the calculation of the beam parameters mentioned above. During commissioning and/or experiences phases that needs very low beam current; the precision of the BPM measurements is reduced due to the low sensitivity of electrostatic BPM to beam current. This paper addresses the design, the realization and the testing of a new set of electrostatic BPMs with large electrodes. It emphasizes the strong points of these BPMs in comparison with BPMs present in SPIRAL2 facility

Poster TUPG09 [0.770 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG09

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TUPG34

First Results from the IPHI Beam Instrumentation

413

P. Ausset, M. Ben Abdillah, S. Berthelot, C. Joly, J. Lesrel, J.-F. Yaniche
IPN, Orsay, France
D. Bogard, B. Pottin, D. Uriot
CEA/DSM/IRFU, France

I.P.H.I. is a High Intensity Proton Injector (C.N.R.S/I.N.2P.3; C.E.A./Irfu and C.E.R.N. collaboration) located at Saclay and now on operation. An E.C.R. source produces a 100 keV, 100 mA C.W. proton beams which will be accelerated at 3 MeV by a 4 vanes R.F.Q. operating at 352.2 MHz. Finally, a High Energy Beam Transport Line (H.E.B.T.) delivers the beam to a beam stopper. The HEBT is equipped with appropriate beam diagnostics to carry beam current, centroid beam transverse position, transverse beam profiles, beam energy and energy spread measurements for the commissioning of I.P.H.I. These beam diagnostics operate under both pulsed and C.W. operation. However transverse beam profile measurements are acquired under low duty factor pulsed beam operation using a slow wire scanner. The beam instrumentation of the H.E.B.T. is reviewed and the first measurements at 3 MeV are described.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUPG34

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

WEPG11

Operation of the Beam Position Monitor for the Spiral 2 Linac on the Test Bench of the RFQ

642

P. Ausset, M. Ben Abdillah, F. Fournier
IPN, Orsay, France
S.K. Bharade, G. Joshi, P.D. Motiwala
BARC, Trombay, Mumbai, India
R. Ferdinand, D.T. Touchard
GANIL, Caen, France

The SPIRAL2 project is based on a multi-beam superconducting LINAC designed to accelerate 5 mA deuteron beams up to 40 MeV, proton beams up to 33 MeV and 1 mA light and heavy ions (Q/A = 1/3) up to 14.5 MeV/A. The accurate tuning of the LINAC is essential for the operation of SPIRAL2 and requires measurement of the beam transverse position, the phase of the beam with respect to the radiofrequency voltage, the ellipticity of the beam and the beam energy with the help of Beam Position Monitor (BPM) system. The commissioning of the RFQ gave us the opportunity to install a BPM sensor, associated with its electronics, mounted on a test bench. The test bench is a D-plate fully equipped with a complete set of beam diagnostic equipment in order to characterize as completely as possible the beam delivered by the RFQ and to gain experience with the behavior of these diagnostics under beam operation. This paper addresses the first measurements carried with the BPM on the D-plate: intensity, phase, transverse position and ellipticity under 750 keV proton beam operation

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-WEPG11

Export •

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