ECRIS2012 - List of Keywords (cyclotron)

Paper	Title	Other Keywords	Page
TUZO02	Detailed Investigation of the 4D Phase-Space of an Ion Beam	ion, emittance, ion-source, dipole	30
	H.R. Kremers, J.P.M. Beijers, S. Brandenburg, V. Mironov, S. Saminathan KVI, Groningen, The Netherlands
	A second order transfer matrix is calculated, which is used in the calculation of a 4D phase-space distribution of a 24.6 keV He¹⁺ beam. The calculated distribution matches a 4D phase-space distribution measured with the KVI pepper pot emittance meter. The pepper pot emittance meter is installed in the image plane of a dipole magnet acting as a charge-state analyser directly downstream the KVI AECR ion source. From the second order transfer matrix simple analytical equations are derived by retaining the terms for angular coefficients. These simple equations describe the main features of the phase-space correlations in the image plane. The equations show also that the subset of the 4D phase-space distribution, selected by one pepper pot aperture, results in multiple beam-lets. Due to this successful matrix modelling we conclude that the 4D phase-space distribution measured is fully determined by the ionoptical properties of the magnet.
	Slides TUZO02 [6.348 MB]

TUPP05	Charge-breeding at the Texas A&M University Cyclotron Institute	ion, injection, ECRIS, plasma	51
	D.P. May Texas A&M University Cyclotron Institute, College Station, Texas, USA J.E. Ärje JYFL, Jyväskylä, Finland G. Tabacaru Texas A&M University, Cyclotron Institute, College Station, USA
	The Cyclotron Institute of Texas A&M University is currently involved in an upgrade that is intended to produce beams of radioactive ions suitable for injection into the K500 superconducting cyclotron. As an integral part of this upgrade an electron-cyclotron-resonance ion source (CB-ECRIS) has been specially constructed by Scientific Solutions of San Diego, California for charge-breeding. This CB-ECRIS operates at 14.5 GHz and incorporates a hexapole of the Halbach style. Since radial injection of microwave power is ruled out, this presents special problems for the axial injection of low-charge-state ions for charge-breeding. Efforts at charge-breeding with stable ions will be presented as well as plans for the injection of low-charge-state, radioactive ions from cyclotron-driven ion guides, one for light radioactive ions and one for heavy radioactive ions.

TUPP14	Beam Experiments with the Grenoble Test Electron Cyclotron Resonance Ion Source at iThemba LABS	operation, ion, experiment, injection	68
	R.W. Thomae, J.L. Conradie, D.T. Fourie iThemba LABS, Somerset West, South Africa D. Küchler CERN, Geneva, Switzerland
	At iThemba Laboratory for Accelerator Based Sciences a copy of the so-called Grenoble Test Source (GTS) for the production of highly charged ions is installed. The source in combination with the K-200 cyclotron delivers high energy, high intensity beams for nuclear physics experiments. In this paper we present beam experiments with the GTS at iThemba LABS, in which the results of CW, pulsed and afterglow operation for different bias disc voltages and positions are compared.
	Poster TUPP14 [0.336 MB]

THXO02	Current Developments of the VENUS Ion Source in Research and Operations	plasma, ion, extraction, ion-source	153
	J.Y. Benitez, K.Y. Franzen, C.M. Lyneis, L. Phair, M.M. Strohmeier LBNL, Berkeley, California, USA G. Machicoane FRIB, East Lansing, Michigan, USA L.T. Sun IMP, Lanzhou, People's Republic of China
	The VENUS ion source functions as a research and development tool in the ECR community as well as an injector for LBNL's 88-Inch cyclotron. In order to meet the needs of both the ECR community and users at the 88-Inch cyclotron, technology such as ovens and a sputter probe have been developed for introducing metals into the plasma. Using a modified high temperature oven, VENUS has produced 450 eμA of ²³⁸U³³⁺ and 400 eμA of ²³⁸U³⁴⁺, twice the required Uranium beam current needed for FRIB. In addition, after upgrading its high voltage capabilities VENUS produced 11emA of ⁴He²⁺, a capability that remains unparalleled by other ECR ion sources. In addition to its recent record high intensities VENUS is also being developed to deliver low intensity, ultra high charge state ions for the cocktails beams, where many species are produced simultaneously for use by the BASE Facility. ¹²⁴Xe⁴³⁺ is now in regular production for the 16 MeV/u cocktail, and development of ²⁰⁹Bi⁵⁶⁺ for the 10 MeV/u cocktail is in progress and has been accelerated through the 88-Inch cyclotron. This paper presents the latest work towards integrating the VENUS ion source into our research and operational goals.
	Slides THXO02 [8.391 MB]

Paper

Title

Other Keywords

Page

TUZO02

Detailed Investigation of the 4D Phase-Space of an Ion Beam

ion, emittance, ion-source, dipole

30

H.R. Kremers, J.P.M. Beijers, S. Brandenburg, V. Mironov, S. Saminathan
KVI, Groningen, The Netherlands

A second order transfer matrix is calculated, which is used in the calculation of a 4D phase-space distribution of a 24.6 keV He¹⁺ beam. The calculated distribution matches a 4D phase-space distribution measured with the KVI pepper pot emittance meter. The pepper pot emittance meter is installed in the image plane of a dipole magnet acting as a charge-state analyser directly downstream the KVI AECR ion source. From the second order transfer matrix simple analytical equations are derived by retaining the terms for angular coefficients. These simple equations describe the main features of the phase-space correlations in the image plane. The equations show also that the subset of the 4D phase-space distribution, selected by one pepper pot aperture, results in multiple beam-lets. Due to this successful matrix modelling we conclude that the 4D phase-space distribution measured is fully determined by the ionoptical properties of the magnet.

Slides TUZO02 [6.348 MB]

TUPP05

Charge-breeding at the Texas A&M University Cyclotron Institute

ion, injection, ECRIS, plasma

51

D.P. May
Texas A&M University Cyclotron Institute, College Station, Texas, USA
J.E. Ärje
JYFL, Jyväskylä, Finland
G. Tabacaru
Texas A&M University, Cyclotron Institute, College Station, USA

The Cyclotron Institute of Texas A&M University is currently involved in an upgrade that is intended to produce beams of radioactive ions suitable for injection into the K500 superconducting cyclotron. As an integral part of this upgrade an electron-cyclotron-resonance ion source (CB-ECRIS) has been specially constructed by Scientific Solutions of San Diego, California for charge-breeding. This CB-ECRIS operates at 14.5 GHz and incorporates a hexapole of the Halbach style. Since radial injection of microwave power is ruled out, this presents special problems for the axial injection of low-charge-state ions for charge-breeding. Efforts at charge-breeding with stable ions will be presented as well as plans for the injection of low-charge-state, radioactive ions from cyclotron-driven ion guides, one for light radioactive ions and one for heavy radioactive ions.

TUPP14

Beam Experiments with the Grenoble Test Electron Cyclotron Resonance Ion Source at iThemba LABS

operation, ion, experiment, injection

68

R.W. Thomae, J.L. Conradie, D.T. Fourie
iThemba LABS, Somerset West, South Africa
D. Küchler
CERN, Geneva, Switzerland

At iThemba Laboratory for Accelerator Based Sciences a copy of the so-called Grenoble Test Source (GTS) for the production of highly charged ions is installed. The source in combination with the K-200 cyclotron delivers high energy, high intensity beams for nuclear physics experiments. In this paper we present beam experiments with the GTS at iThemba LABS, in which the results of CW, pulsed and afterglow operation for different bias disc voltages and positions are compared.

Poster TUPP14 [0.336 MB]

THXO02

Current Developments of the VENUS Ion Source in Research and Operations

plasma, ion, extraction, ion-source

153

J.Y. Benitez, K.Y. Franzen, C.M. Lyneis, L. Phair, M.M. Strohmeier
LBNL, Berkeley, California, USA
G. Machicoane
FRIB, East Lansing, Michigan, USA
L.T. Sun
IMP, Lanzhou, People's Republic of China

The VENUS ion source functions as a research and development tool in the ECR community as well as an injector for LBNL's 88-Inch cyclotron. In order to meet the needs of both the ECR community and users at the 88-Inch cyclotron, technology such as ovens and a sputter probe have been developed for introducing metals into the plasma. Using a modified high temperature oven, VENUS has produced 450 eμA of ²³⁸U³³⁺ and 400 eμA of ²³⁸U³⁴⁺, twice the required Uranium beam current needed for FRIB. In addition, after upgrading its high voltage capabilities VENUS produced 11emA of ⁴He²⁺, a capability that remains unparalleled by other ECR ion sources. In addition to its recent record high intensities VENUS is also being developed to deliver low intensity, ultra high charge state ions for the cocktails beams, where many species are produced simultaneously for use by the BASE Facility. ¹²⁴Xe⁴³⁺ is now in regular production for the 16 MeV/u cocktail, and development of ²⁰⁹Bi⁵⁶⁺ for the 10 MeV/u cocktail is in progress and has been accelerated through the 88-Inch cyclotron. This paper presents the latest work towards integrating the VENUS ion source into our research and operational goals.

Slides THXO02 [8.391 MB]