Development Work at JYFL: Plasma Potential Measurements, Electron Heating Simulations, JYFL-MMPS, High Temperature Ovens

H.Koivisto<SUP>1</SUP>; P.Frondelius<SUP>1</SUP>; T.Koponen<SUP>1</SUP>; P.Lappalainen<SUP>1</SUP>; T.Ropponen<SUP>1</SUP>; M.Savonen<SUP>1</SUP>; <BR>P.Suominen<SUP>1</SUP>; O.Tarvainen<SUP>1</SUP>; K.Tinschert<SUP>2</SUP>; G.Ciavola<SUP>3</SUP>

Chinese Physics C> 2007, Vol. 31> Issue(S1) : 41-45

Development Work at JYFL: Plasma Potential Measurements, Electron Heating Simulations, JYFL-MMPS, High Temperature Ovens

Department of Physics, University of Jyvaskyla, FI-40014 University of Jyvaskyla, Finland2 Gesellschaft fur Schwerionenforschung mbH : GSI, Darmstadt, Germany3 Istituto Nazionale Fisica Nucleare-Laboratori Nazionali del Sud: INFN-LNS, Catania,Italy

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Extensive plasma potential measurements have been carried out using a device developed at JYFL. In this article the main results of the measurements will be summarized. A new simulation code to study the electron heating is being developed. One objective of the code is to determine the change of the electron loss cone when the magnetic field component of the electromagnetic wave is taken into account along with the permittivity of the plasma. As a part of the work, accurate X-ray measurements have been initiated. A new plasma chamber based on the MMPS-concept (Modified MultiPole Structure) has successfully been constructed and tested with the JYFL 6.4GHz ECRIS. The results and conclusions will be presented elsewhere in these proceedings. In the same article, a new concept of ECRIS and first results will be presented. The active development work of evaporation ovens has been carried out in a joint European collaboration (ISIBHI). The objective of the task is to make the operation of the oven reliable at 2000℃ for several days. Both resistively and inductively heated ovens have been studied and further developed. The status of this work will be presented.

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H.Koivisto¹, P.Frondelius¹, T.Koponen¹, P.Lappalainen¹, T.Ropponen¹, M.Savonen¹,
P.Suominen¹, O.Tarvainen¹, K.Tinschert² and G.Ciavola³. Development Work at JYFL: Plasma Potential Measurements, Electron Heating Simulations, JYFL-MMPS, High Temperature Ovens[J]. Chinese Physics C, 2007, 31(S1): 41-45.

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Received: 2007-05-30
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Development Work at JYFL: Plasma Potential Measurements, Electron Heating Simulations, JYFL-MMPS, High Temperature Ovens

Department of Physics, University of Jyvaskyla, FI-40014 University of Jyvaskyla, Finland2 Gesellschaft fur Schwerionenforschung mbH : GSI, Darmstadt, Germany3 Istituto Nazionale Fisica Nucleare-Laboratori Nazionali del Sud: INFN-LNS, Catania,Italy

Received Date: 2007-05-30

Accepted Date: 1900-01-01

Available Online: 2007-01-03

Abstract: Extensive plasma potential measurements have been carried out using a device developed at JYFL. In this article the main results of the measurements will be summarized. A new simulation code to study the electron heating is being developed. One objective of the code is to determine the change of the electron loss cone when the magnetic field component of the electromagnetic wave is taken into account along with the permittivity of the plasma. As a part of the work, accurate X-ray measurements have been initiated. A new plasma chamber based on the MMPS-concept (Modified MultiPole Structure) has successfully been constructed and tested with the JYFL 6.4GHz ECRIS. The results and conclusions will be presented elsewhere in these proceedings. In the same article, a new concept of ECRIS and first results will be presented. The active development work of evaporation ovens has been carried out in a joint European collaboration (ISIBHI). The objective of the task is to make the operation of the oven reliable at 2000℃ for several days. Both resistively and inductively heated ovens have been studied and further developed. The status of this work will be presented.

Development Work at JYFL: Plasma Potential Measurements, Electron Heating Simulations, JYFL-MMPS, High Temperature Ovens

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Development Work at JYFL: Plasma Potential Measurements, Electron Heating Simulations, JYFL-MMPS, High Temperature Ovens

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