ECRIS2012 - List of Authors (Sortais, P.)

Paper

Title

Page

Status of the SEISM Experiment

111

M. Marie-Jeanne, J. Angot, P. Balint, C. Fourel, J. Giraud, J. Jacob, T. Lamy, L. Latrasse, P. Sortais, T. Thuillier
LPSC, Grenoble Cedex, France
C. Daversin, F. Debray, C. Trophime, S. Veys
GHMFL, Grenoble, France
I. Izotov, V. Skalyga, V. Zorin
IAP/RAS, Nizhny Novgorod, Russia

Funding: This work has been supported by the EuroMagNET II under the EU contract number 228043 and by the European Commission Framework Programme 7 Design Study: EUROnu, Project Number 212372.
LPSC and LNCMI (Laboratoire National des Champs Magnétiques Intenses) of Grenoble have developed the first and unique magnetic confinement structure in the world that allows a closed 60 GHz ECR zone, using high field magnet technologies. The magnetic structure has been validated for 28 GHz resonance and a closed 1 T iso-B surface was measured. Calculated and measured field maps were carefully compared in order to determine an operation range for 28 GHz plasma tests. A whole test bench, including high pressure water for helix cooling, intense currents (up to 15 kA) for helix powering and a beam line with mass separation is under construction at LNCMI. This contribution presents the status of the experiment, hopefully including the results of the first beam tests scheduled in September. The 350 kW - 60 GHz gyrotron has been built at IAP, the status of its operation will be shown.

Slides WEZO01 [11.245 MB]

THYO02

LPSC PHOENIX ECR Charge Breeder Beam Optics and Efficiencies

167

J. Angot, T. Lamy, M. Marie-Jeanne, P. Sortais, T. Thuillier
LPSC, Grenoble Cedex, France

The PHOENIX ECR charge breeder characteristics (efficiency and charge breeding time) were measured at CERN-ISOLDE and LPSC, they were considered as sufficient to allow its setup on various facilities (TRIUMF-Canada/GANIL-SPIRAL2-France/SPIRAL1). The developments performed at the Argonne National Laboratory (USA) have shown that the ECR charge breeder efficiencies could be much higher than the ones obtained with PHOENIX, without major differences between the two devices. We have tried to study the possible reasons of such different results in order to improve the PHOENIX charge breeder characteristics. The transmission value of the n+ beam line has been measured to be as low as 30%. Emittances of the total beam extracted from the source and of some analyzed beams (after the magnetic spectrometer) have been measured and will be presented. Simulations have shown a too low vertical acceptance at the center of the dipole. Simulations and experimental results will be presented to show how an additional Einzel lens inserted just before the dipole have drastically improve the beam transmission. The impact of this new beam transport on efficiency results will be presented.

Slides THYO02 [4.337 MB]

Paper	Title	Page
WEZO01	Status of the SEISM Experiment	111
	M. Marie-Jeanne, J. Angot, P. Balint, C. Fourel, J. Giraud, J. Jacob, T. Lamy, L. Latrasse, P. Sortais, T. Thuillier LPSC, Grenoble Cedex, France C. Daversin, F. Debray, C. Trophime, S. Veys GHMFL, Grenoble, France I. Izotov, V. Skalyga, V. Zorin IAP/RAS, Nizhny Novgorod, Russia
	Funding: This work has been supported by the EuroMagNET II under the EU contract number 228043 and by the European Commission Framework Programme 7 Design Study: EUROnu, Project Number 212372. LPSC and LNCMI (Laboratoire National des Champs Magnétiques Intenses) of Grenoble have developed the first and unique magnetic confinement structure in the world that allows a closed 60 GHz ECR zone, using high field magnet technologies. The magnetic structure has been validated for 28 GHz resonance and a closed 1 T iso-B surface was measured. Calculated and measured field maps were carefully compared in order to determine an operation range for 28 GHz plasma tests. A whole test bench, including high pressure water for helix cooling, intense currents (up to 15 kA) for helix powering and a beam line with mass separation is under construction at LNCMI. This contribution presents the status of the experiment, hopefully including the results of the first beam tests scheduled in September. The 350 kW - 60 GHz gyrotron has been built at IAP, the status of its operation will be shown.
	Slides WEZO01 [11.245 MB]

THYO02	LPSC PHOENIX ECR Charge Breeder Beam Optics and Efficiencies	167
	J. Angot, T. Lamy, M. Marie-Jeanne, P. Sortais, T. Thuillier LPSC, Grenoble Cedex, France
	The PHOENIX ECR charge breeder characteristics (efficiency and charge breeding time) were measured at CERN-ISOLDE and LPSC, they were considered as sufficient to allow its setup on various facilities (TRIUMF-Canada/GANIL-SPIRAL2-France/SPIRAL1). The developments performed at the Argonne National Laboratory (USA) have shown that the ECR charge breeder efficiencies could be much higher than the ones obtained with PHOENIX, without major differences between the two devices. We have tried to study the possible reasons of such different results in order to improve the PHOENIX charge breeder characteristics. The transmission value of the n+ beam line has been measured to be as low as 30%. Emittances of the total beam extracted from the source and of some analyzed beams (after the magnetic spectrometer) have been measured and will be presented. Simulations have shown a too low vertical acceptance at the center of the dipole. Simulations and experimental results will be presented to show how an additional Einzel lens inserted just before the dipole have drastically improve the beam transmission. The impact of this new beam transport on efficiency results will be presented.
	Slides THYO02 [4.337 MB]