Design of Compact All-Permanent Magnet Electron Cyclotron Resonance (ECR) Ion Sources for Atomic Physics Experiments

Broetz, F.; Trassl, R.; McCullough, Robert; Arnold, W.; Salzborn, E.

doi:10.1238/physica.topical.092a00278

Cited by 36 publications

(31 citation statements)

References 3 publications

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“…The merged-beams section provides a large interaction volume and, thus, the possibility to study small cross sections of photon-ion processes with high sensitivity making up for the diluteness of ionic targets. For the present measurements, Xe q+ (q = 1 − 5) ion beams were produced in a compact permanent-magnet electron cyclotron-resonance (ECR) ion source [51]. It had been installed on the ion-source platform (figure 1) and was operated on a high voltage U acc with respect to the grounded ion beamline.…”

Section: Ion Beamlinementioning

confidence: 99%

Absolute cross sections for photoionization of Xe^{q +}ions (1 ⩽ q ⩽ 5) at the 3d ionization threshold

Schippers

Ricz

Buhr

et al. 2014

J. Phys. B: At. Mol. Opt. Phys.

112

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Section: Ion Beamlinementioning

confidence: 99%

Absolute cross sections for photoionization of Xe^{q +}ions (1 ⩽ q ⩽ 5) at the 3d ionization threshold

Schippers

Ricz

Buhr

et al. 2014

J. Phys. B: At. Mol. Opt. Phys.

112

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“…For electron-impact ionization and photoexcitation experiments the ions were produced in an ECR ion source [38]. Tungsten hexacarbonyl, W(CO) 6 , was evaporated and introduced to the plasma chamber of the ion source via a finely tunable leak valve.…”

Section: Generating Beams Of Multiply Charged W Q+ Ionsmentioning

confidence: 99%

Fusion-Related Ionization and Recombination Data for Tungsten Ions in Low to Moderately High Charge States

Müller

2015

Atoms

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Collisional processes and details of atomic structure of heavy many-electron atoms and ions are not yet understood in a fully satisfying manner. Experimental studies are required for guiding new theoretical approaches. In response to fusion-related needs for collisional and spectroscopic data on tungsten atoms in all charge states, a project has been initiated in which electron-impact and photon-induced ionization as well as photorecombination of W q+ ions are studied. Cross sections and rate coefficients were determined for charge states q ranging from q = 1 to q = 5 for photoionization, for q = 1 up to q = 19 for electron-impact ionization and for q = 18 to q = 21 for electron-ion recombination. An overview, together with a critical assessment of the methods and results is provided.

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“…The W 17+ target ions were produced by a 10 GHz all-permanent-magnet electroncyclotron-resonance (ECR) ion source [19] operating at a microwave power of up to 100 W. Tungsten hexacarbonyl, W(CO) 6 , was used as parent material. A small container separated from the ion source by a fine-regulation valve was filled with W(CO) 6 powder which has a vapor pressure of about 0.02 mbar at room temperature [20].…”

Section: General Description Of the Setup And Measurement Proceduresmentioning

confidence: 99%

Electron-impact single and double ionization of W^{17 +}

Rausch

Becker

Spruck

et al. 2011

J. Phys. B: At. Mol. Opt. Phys.

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Abstract.A crossed-beams setup was used to measure cross sections for electron-impact single and double ionization of W 17+ ions. Absolute data and high-resolution scan spectra were obtained at collision energies ranging from threshold up to 1000 eV. Comparison of the experimental results with theoretical calculations for direct ionization suggests substantial contributions of excitation-autoionization processes to electron-impact single ionization of W 17+ .

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Design of Compact All-Permanent Magnet Electron Cyclotron Resonance (ECR) Ion Sources for Atomic Physics Experiments

Cited by 36 publications

References 3 publications

Absolute cross sections for photoionization of Xe^{q +}ions (1 ⩽ q ⩽ 5) at the 3d ionization threshold

Absolute cross sections for photoionization of Xe^{q +}ions (1 ⩽ q ⩽ 5) at the 3d ionization threshold

Fusion-Related Ionization and Recombination Data for Tungsten Ions in Low to Moderately High Charge States

Electron-impact single and double ionization of W^{17 +}

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Design of Compact All-Permanent Magnet Electron Cyclotron Resonance (ECR) Ion Sources for Atomic Physics Experiments

Cited by 36 publications

References 3 publications

Absolute cross sections for photoionization of Xeq +ions (1 ⩽ q ⩽ 5) at the 3d ionization threshold

Absolute cross sections for photoionization of Xeq +ions (1 ⩽ q ⩽ 5) at the 3d ionization threshold

Fusion-Related Ionization and Recombination Data for Tungsten Ions in Low to Moderately High Charge States

Electron-impact single and double ionization of W17 +

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Absolute cross sections for photoionization of Xe^{q +}ions (1 ⩽ q ⩽ 5) at the 3d ionization threshold

Absolute cross sections for photoionization of Xe^{q +}ions (1 ⩽ q ⩽ 5) at the 3d ionization threshold

Electron-impact single and double ionization of W^{17 +}