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  Progress at the Heidelberg EBIT

Crespo López-Urrutia, J. R., Braun, J., Brenner, G., Bruhns, H., Dimopoulou, C., Draganic, I. N., et al. (2004). Progress at the Heidelberg EBIT. In N. Nakamura, & S. Ohtani (Eds.), Ninth International Symposium on Electron Beam Ion Sources and Traps and Their Applications (pp. 42-51). Bistol, UK: Institute of Physics Publishing.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-8D27-D Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-8D28-B
Genre: Conference Paper

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 Creators:
Crespo López-Urrutia, J. R.1, Author           
Braun, J.1, Author           
Brenner, G.1, Author           
Bruhns, H.1, Author           
Dimopoulou, C.1, Author           
Draganic, I. N.1, Author           
Fischer, D.2, Author           
González Martínez, A. J.1, Author           
Lapierre, A.1, Author           
Mironov, V.1, Author           
Moshammer, R.1, Author           
Soria Orts, R.1, Author           
Tawara, H.1, Author           
Trinczek, M.1, Author           
Ullrich, J.1, Author           
Affiliations:
1Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society, ou_904547              
2Daniel Fischer - Emmy Noether Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society, ou_907553              

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 Abstract: Two years after the relocation of the Heidelberg EBIT, several experiments are already in operation. Spectroscopic measurements in the optical region have delivered the most precise reported wavelengths for highly charged ions, in the case of the forbidden transitions of Ar XIV and Ar XV. The lifetimes of the metastable levels involved in those transitions has been determined with an error of less than 0.2%. A new, fully automatized x-ray crystal spectrometer allows systematic measurements with very high precision and reproducibility. Absolute measurements of the Lyman series of H-like ions are currently underway. Dielectronic recombination studies have yielded information on rare processes, as two-electron-one photon transitions in Ar16+, or the interference effects between dielectronic and radiative recombination in Hg77+. The apparatus can now operate at electron beam currents of more than 500 mA, and energies up to 100 keV. A further beam energy increase is planned in the near future. Ions can be extracted from the trap and transported to external experiments. Up to 4 × 107 Ar16+ ions per second can be delivered to a 1 cm diameter target at 10 m distance. Charge-exchange experiments with U64+ colliding with a cold He atomic beam have been carried out, as well as experiments aiming at the optimization of the charge state distribution of the extracted via dielectronic recombination. Two new EBITs, currently in advanced state of construction in Heidelberg, will be used for experiments at the VUV free electron laser at TESLA (Hamburg) and for the charge breeding of short-lived radioactive isotopes at the TRIUMF ISAC facility.

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Language(s): eng - English
 Dates: 2004
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 206701
DOI: doi:10.1088/1742-6596/2/1/006
 Degree: -

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Title: Ninth International Symposium of Electron Beam Ion Sources and Traps and Their Applications
Place of Event: Tokyo Metropolitan University, Japan
Start-/End Date: 2004-04-15 - 2004-04-17

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Title: Ninth International Symposium on Electron Beam Ion Sources and Traps and Their Applications
Source Genre: Proceedings
 Creator(s):
Nakamura, Nobuyuki, Editor
Ohtani, Shunsuke, Editor
Affiliations:
-
Publ. Info: Bistol, UK : Institute of Physics Publishing
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 42 - 51 Identifier: -

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Title: Journal of Physics: Conference Series
Source Genre: Series
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Pages: - Volume / Issue: 2 Sequence Number: - Start / End Page: - Identifier: ISSN: 1742-6588