ECRIS2012 - List of Keywords (resonance)

Paper	Title	Other Keywords	Page
WEZO01	Status of the SEISM Experiment	plasma, injection, extraction, ECR	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]

WEPP02	Relationship of Performance and RF Resonance Modes	ion, ECR, ion-source, plasma	121
	T. Hattori, A. Kitagawa, M. Muramatsu NIRS, Chiba-shi, Japan N. Hayashizaki RLNR, Tokyo, Japan
	The performance of Electron Cyclotron Resonance (ECR) ion source depends on the operation frequency, the magnetic mirror field, the maltipole field, the mirror ratio, the ECR zone and others. We studied the relationship of performance and operation frequency in ECR ion source (HiECR-3). The performance (beam intensity of Ar⁹⁺ ion) was measured according to change of frequency from 9.7 to 11.7 GHz in fixed magnetic field of HiECR ion source. We measured resonant frequencies of plasma chamber of HiECR ion source in condition of no plasma (current of mirror coils is zero). The data of intensity of Ar⁹⁺ related to measured resonant frequencies. Their resonant modes were checked with a 3D electromagnetic simulator (High Frequency Structure Simulator). As a result, it became clear that the performance of the ion source depends on electric-field distribution of the RF resonant mode.

Paper

Title

Other Keywords

Page

WEZO01

Status of the SEISM Experiment

plasma, injection, extraction, ECR

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]

WEPP02

Relationship of Performance and RF Resonance Modes

ion, ECR, ion-source, plasma

121

T. Hattori, A. Kitagawa, M. Muramatsu
NIRS, Chiba-shi, Japan
N. Hayashizaki
RLNR, Tokyo, Japan

The performance of Electron Cyclotron Resonance (ECR) ion source depends on the operation frequency, the magnetic mirror field, the maltipole field, the mirror ratio, the ECR zone and others. We studied the relationship of performance and operation frequency in ECR ion source (HiECR-3). The performance (beam intensity of Ar⁹⁺ ion) was measured according to change of frequency from 9.7 to 11.7 GHz in fixed magnetic field of HiECR ion source. We measured resonant frequencies of plasma chamber of HiECR ion source in condition of no plasma (current of mirror coils is zero). The data of intensity of Ar⁹⁺ related to measured resonant frequencies. Their resonant modes were checked with a 3D electromagnetic simulator (High Frequency Structure Simulator). As a result, it became clear that the performance of the ion source depends on electric-field distribution of the RF resonant mode.