ECRIS2016 - List of Keywords (proton)

Paper	Title	Other Keywords	Page
TUAO01	The Proton Source for the European Spallation Source (PS-ESS): Installation and Commissioning at INFN-LNS	ion, plasma, MMI, injection	39
	L. Celona, L. Allegra, A. Amato, G. Calabrese, A.C. Caruso, G. Castro, F. Chines, G. Gallo, S. Gammino, O. Leonardi, A. Longhitano, G. Manno, S. Marletta, D. Mascali, A. Massara, A. Maugeri, M. Mazzaglia, L. Neri, S. Passarello, G. Pastore, A. Seminara, A. Spartà, G. Torrisi, S. Vinciguerra INFN/LNS, Catania, Italy S. Di Martino, P. Nicotra Si.A.Tel SRL, Catania, Italy
	A 2.45 GHz ' 0.1 T microwave discharge Proton Source has been designed and assembled at INFN-LNS for the European Spallation Source (PS-ESS) in order to produce pulsed beams of protons up to 74 mA nominal current, at 75 keV of energy, with a transverse emittance containing 99 % of the nominal proton current below 2.25 π mm mrad and a beam stability of ± 2 %. The challenging performances of the machine have triggered specific studies on the maximization of the proton fraction inside the plasma and of the overall plasma density, including dedicated modelling of the wave-to-plasma interaction and ionization processes. The plasma conditioning phase started in July and excellent RF to plasma coupling, more than 99.5% is evident since the beginning. Reflected power fluctuation less than 0.05 % was measured providing a great starting point to reach the beam stability requested by the ESS accelerator.
	Slides TUAO01 [14.571 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-TUAO01
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WEPP01	High Intensity Beam Production at CEA/Saclay For The IPHI Project	ion, rfq, diagnostics, solenoid	83
	R. Gobin, D. Bogard, O. Delferrière, M. Desmons, Y. Gauthier, F. Harrault, F. Peauger, G. Perreu, B. Pottin, Y. Sauce, J. Schwindling, F. Senée, O. Tuske, D. Uriot, T.V. Vacher CEA/DRF/IRFU, Gif-sur-Yvette, France
	CEA/Saclay is involved in high power proton accelerators for long years. This activity started in the 90's, with the development of the SILHI source which routinely produces tens mA of proton beam. Several industrial difficulties led to a very long IPHI RFQ construction process. The 352 MHz RFQ conditioning is presently in progress. Before the completion of the conditioning in CW mode, tests with pulsed proton beam have been decided. As a consequence, the SILHI source recently produced very short H⁺ beam pulses in order to allow the first IPHI beam acceleration. Such very short pulses, in the range of few hundred microseconds, allowed analyzing the beam loading of the RFQ cavity as well as conditioning the middle energy diagnostic. This article will focus on the source parameters and beam characteristics in the low energy beam line leading to the best RFQ transmission.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-WEPP01
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WEPP02	Commissioning of the High Intensity Proton Injector of the Facility for Anti Proton and Ion Research at CEA-Saclay	ion, solenoid, plasma, diagnostics	86
	O. Tuske, N. Chauvin, O. Delferrière, Y. Gauthier, P. Girardot, N. Misiara, Y. Sauce, F. Senée, C. Simon CEA/IRFU, Gif-sur-Yvette, France F. Ameil, R. Berezov, J. Fils, R. Hollinger GSI, Darmstadt, Germany T.V. Vacher CEA/DSM/IRFU, France
	The Facility for Antiproton and Ion Research (FAIR) located at GSI (Darmstadt) in Germany addresses several fields of physics research within a single installation. One of the contribution of Irfu/SACM at CEA-Saclay to the FAIR linear proton accelerator concerns the development and construction of the ion source and the low energy line. The 2.45 GHz microwave ion source will deliver a 100 mA H⁺ beam pulsed at 4 Hz with an energy of 95 keV. A low energy beam transport (LEBT) line based on a dual solenoids focusing scheme allows the injection of the proton beam into the radio frequency quadrupole (RFQ) within an acceptance of 0.3π mm.mrad (norm., rms). An electrostatic chopper system located between the second solenoid and the RFQ is used to cut the beam macro pulse from the source to inject 36 μs long beam pulses into the RFQ. This article reports the finalization of the installation of the injector with the detail of dedicated diagnostics, the first beam measurements and gives a planning of the different commissioning phases
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-WEPP02
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WEPP08	Development of Compact H⁺ ECR Ion Source with Pulse Gas Valve	ion, ion-source, plasma, ECR	98
	Y. Fuwa, Y. Iwashita, H. Tongu Kyoto ICR, Uji, Kyoto, Japan M. Ichikawa QST, Tokai, Japan N. Miyawaki QST/Takasaki, Takasaki, Japan
	Compact H⁺ ECR Ion Source using permanent magnets is under development. A pulsed gas injection system achieved by a piezo gas valve can reduce the gas load to a vacuum evacuation system. This feature is suitable when the ion source is closely located to an RFQ. Results of a performance test will be presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-WEPP08
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Paper

Title

Other Keywords

Page

TUAO01

The Proton Source for the European Spallation Source (PS-ESS): Installation and Commissioning at INFN-LNS

ion, plasma, MMI, injection

39

L. Celona, L. Allegra, A. Amato, G. Calabrese, A.C. Caruso, G. Castro, F. Chines, G. Gallo, S. Gammino, O. Leonardi, A. Longhitano, G. Manno, S. Marletta, D. Mascali, A. Massara, A. Maugeri, M. Mazzaglia, L. Neri, S. Passarello, G. Pastore, A. Seminara, A. Spartà, G. Torrisi, S. Vinciguerra
INFN/LNS, Catania, Italy
S. Di Martino, P. Nicotra
Si.A.Tel SRL, Catania, Italy

A 2.45 GHz ' 0.1 T microwave discharge Proton Source has been designed and assembled at INFN-LNS for the European Spallation Source (PS-ESS) in order to produce pulsed beams of protons up to 74 mA nominal current, at 75 keV of energy, with a transverse emittance containing 99 % of the nominal proton current below 2.25 π mm mrad and a beam stability of ± 2 %. The challenging performances of the machine have triggered specific studies on the maximization of the proton fraction inside the plasma and of the overall plasma density, including dedicated modelling of the wave-to-plasma interaction and ionization processes. The plasma conditioning phase started in July and excellent RF to plasma coupling, more than 99.5% is evident since the beginning. Reflected power fluctuation less than 0.05 % was measured providing a great starting point to reach the beam stability requested by the ESS accelerator.

Slides TUAO01 [14.571 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-TUAO01

Export •

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

WEPP01

High Intensity Beam Production at CEA/Saclay For The IPHI Project

ion, rfq, diagnostics, solenoid

83

R. Gobin, D. Bogard, O. Delferrière, M. Desmons, Y. Gauthier, F. Harrault, F. Peauger, G. Perreu, B. Pottin, Y. Sauce, J. Schwindling, F. Senée, O. Tuske, D. Uriot, T.V. Vacher
CEA/DRF/IRFU, Gif-sur-Yvette, France

CEA/Saclay is involved in high power proton accelerators for long years. This activity started in the 90's, with the development of the SILHI source which routinely produces tens mA of proton beam. Several industrial difficulties led to a very long IPHI RFQ construction process. The 352 MHz RFQ conditioning is presently in progress. Before the completion of the conditioning in CW mode, tests with pulsed proton beam have been decided. As a consequence, the SILHI source recently produced very short H⁺ beam pulses in order to allow the first IPHI beam acceleration. Such very short pulses, in the range of few hundred microseconds, allowed analyzing the beam loading of the RFQ cavity as well as conditioning the middle energy diagnostic. This article will focus on the source parameters and beam characteristics in the low energy beam line leading to the best RFQ transmission.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-WEPP01

Export •

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

WEPP02

Commissioning of the High Intensity Proton Injector of the Facility for Anti Proton and Ion Research at CEA-Saclay

ion, solenoid, plasma, diagnostics

86

O. Tuske, N. Chauvin, O. Delferrière, Y. Gauthier, P. Girardot, N. Misiara, Y. Sauce, F. Senée, C. Simon
CEA/IRFU, Gif-sur-Yvette, France
F. Ameil, R. Berezov, J. Fils, R. Hollinger
GSI, Darmstadt, Germany
T.V. Vacher
CEA/DSM/IRFU, France

The Facility for Antiproton and Ion Research (FAIR) located at GSI (Darmstadt) in Germany addresses several fields of physics research within a single installation. One of the contribution of Irfu/SACM at CEA-Saclay to the FAIR linear proton accelerator concerns the development and construction of the ion source and the low energy line. The 2.45 GHz microwave ion source will deliver a 100 mA H⁺ beam pulsed at 4 Hz with an energy of 95 keV. A low energy beam transport (LEBT) line based on a dual solenoids focusing scheme allows the injection of the proton beam into the radio frequency quadrupole (RFQ) within an acceptance of 0.3π mm.mrad (norm., rms). An electrostatic chopper system located between the second solenoid and the RFQ is used to cut the beam macro pulse from the source to inject 36 μs long beam pulses into the RFQ. This article reports the finalization of the installation of the injector with the detail of dedicated diagnostics, the first beam measurements and gives a planning of the different commissioning phases

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-WEPP02

Export •

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

WEPP08

Development of Compact H⁺ ECR Ion Source with Pulse Gas Valve

ion, ion-source, plasma, ECR

98

Y. Fuwa, Y. Iwashita, H. Tongu
Kyoto ICR, Uji, Kyoto, Japan
M. Ichikawa
QST, Tokai, Japan
N. Miyawaki
QST/Takasaki, Takasaki, Japan

Compact H⁺ ECR Ion Source using permanent magnets is under development. A pulsed gas injection system achieved by a piezo gas valve can reduce the gas load to a vacuum evacuation system. This feature is suitable when the ion source is closely located to an RFQ. Results of a performance test will be presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-WEPP08

Export •

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