Removal of molecular contamination in low-energy RIBs by the isolation-dissociationisolation method

Florian  Greiner; Timo Dickel; Samuel Ayet San Andrés; Julian Bergmann; Paul Constantin; Jens Ebert; Hans Geissel; Emma Haettner; Christine Hornung; Ivan Miskun; Wayne Lippert; Israel Mardor; Iain Moore; Wolfgang R Plab; Sivaji Purushothaman; Ann-Kathrin Rink; M. P. Reiter; Christoph Scheidenberger; Helmut Weick

doi:10.1016/j.nimb.2019.04.072

Removal of molecular contamination in low-energy RIBs by the isolation-dissociationisolation method

Florian Greiner, Timo Dickel, Samuel Ayet San Andrés, Julian Bergmann, Paul Constantin, Jens Ebert, Hans Geissel, Emma Haettner, Christine Hornung, Ivan Miskun, Wayne Lippert, Israel Mardor, Iain Moore, Wolfgang R Plab, Sivaji Purushothaman, Ann-Kathrin Rink, M. P. Reiter, Christoph Scheidenberger, Helmut Weick

School of Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract / Description of output

Experiments with low-energy rare ion beams often suffer from a large amount of molecular contaminant ions. We present the simple isolation-dissociation-isolation method to suppress this kind of contamination. The method can be applied to almost all types of low-energy beamlines. In a first step, a coarse isolation of the mass-to-charge ratio of interest is performed, e.g. by a dipole magnet. In a second step, the ions are dissociated. The last step is again a coarse isolation of the mass-to-charge ratio around the ion of interest. The method was tested at the FRS Ion Catcher at GSI with a radioactive ion source installed inside the cryogenic stopping cell as well as with relativistic ions delivered by the synchrotron SIS-18 and stopped in the cryogenic stopping cell. The isolation and dissociation, here collision-induced dissociation, have been implemented in a gas-filled RFQ beamline. A reduction of molecular contamination by more than 4 orders of magnitude was achieved.

Original language	English
Title of host publication	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Publisher	Elsevier
DOIs	https://doi.org/10.1016/j.nimb.2019.04.072
Publication status	Published - 10 May 2019
Event	International Conference on Electromagnetic Isotope Separators and Related Topics - CERN, Geneva, Switzerland Duration: 16 Sept 2018 → 21 Sept 2018 https://indico.cern.ch/event/616127/

Publication series

Name	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Publisher	Elsevier
ISSN (Print)	0168-583X

Conference

Conference	International Conference on Electromagnetic Isotope Separators and Related Topics
Abbreviated title	EMIS 2018
Country/Territory	Switzerland
City	Geneva
Period	16/09/18 → 21/09/18
Internet address	https://indico.cern.ch/event/616127/

Access to Document

10.1016/j.nimb.2019.04.072Licence: Creative Commons: Attribution (CC-BY)

Cite this

Greiner, F., Dickel, T., San Andrés, S. A., Bergmann, J., Constantin, P., Ebert, J., Geissel, H., Haettner, E., Hornung, C., Miskun, I., Lippert, W., Mardor, I., Moore, I., Plab, W. R., Purushothaman, S., Rink, A.-K., Reiter, M. P., Scheidenberger, C., & Weick, H. (2019). Removal of molecular contamination in low-energy RIBs by the isolation-dissociationisolation method. In Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms (Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms). Elsevier. https://doi.org/10.1016/j.nimb.2019.04.072

Greiner, Florian ; Dickel, Timo ; San Andrés, Samuel Ayet et al. / Removal of molecular contamination in low-energy RIBs by the isolation-dissociationisolation method. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. Elsevier, 2019. (Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms).

@inproceedings{baf92b419fac46a5b11a80e7164087cc,

title = "Removal of molecular contamination in low-energy RIBs by the isolation-dissociationisolation method",

abstract = "Experiments with low-energy rare ion beams often suffer from a large amount of molecular contaminant ions. We present the simple isolation-dissociation-isolation method to suppress this kind of contamination. The method can be applied to almost all types of low-energy beamlines. In a first step, a coarse isolation of the mass-to-charge ratio of interest is performed, e.g. by a dipole magnet. In a second step, the ions are dissociated. The last step is again a coarse isolation of the mass-to-charge ratio around the ion of interest. The method was tested at the FRS Ion Catcher at GSI with a radioactive ion source installed inside the cryogenic stopping cell as well as with relativistic ions delivered by the synchrotron SIS-18 and stopped in the cryogenic stopping cell. The isolation and dissociation, here collision-induced dissociation, have been implemented in a gas-filled RFQ beamline. A reduction of molecular contamination by more than 4 orders of magnitude was achieved.",

author = "Florian Greiner and Timo Dickel and {San Andr{\'e}s}, {Samuel Ayet} and Julian Bergmann and Paul Constantin and Jens Ebert and Hans Geissel and Emma Haettner and Christine Hornung and Ivan Miskun and Wayne Lippert and Israel Mardor and Iain Moore and Plab, {Wolfgang R} and Sivaji Purushothaman and Ann-Kathrin Rink and Reiter, {M. P.} and Christoph Scheidenberger and Helmut Weick",

year = "2019",

month = may,

day = "10",

doi = "10.1016/j.nimb.2019.04.072",

language = "English",

series = "Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms",

publisher = "Elsevier",

booktitle = "Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms",

note = "International Conference on Electromagnetic Isotope Separators and Related Topics, EMIS 2018 ; Conference date: 16-09-2018 Through 21-09-2018",

url = "https://indico.cern.ch/event/616127/",

}

Greiner, F, Dickel, T, San Andrés, SA, Bergmann, J, Constantin, P, Ebert, J, Geissel, H, Haettner, E, Hornung, C, Miskun, I, Lippert, W, Mardor, I, Moore, I, Plab, WR, Purushothaman, S, Rink, A-K, Reiter, MP, Scheidenberger, C & Weick, H 2019, Removal of molecular contamination in low-energy RIBs by the isolation-dissociationisolation method. in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, International Conference on Electromagnetic Isotope Separators and Related Topics, Geneva, Switzerland, 16/09/18. https://doi.org/10.1016/j.nimb.2019.04.072

Removal of molecular contamination in low-energy RIBs by the isolation-dissociationisolation method. / Greiner, Florian ; Dickel, Timo; San Andrés, Samuel Ayet et al.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. Elsevier, 2019. (Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Removal of molecular contamination in low-energy RIBs by the isolation-dissociationisolation method

AU - Greiner, Florian

AU - Dickel, Timo

AU - San Andrés, Samuel Ayet

AU - Bergmann, Julian

AU - Constantin, Paul

AU - Ebert, Jens

AU - Geissel, Hans

AU - Haettner, Emma

AU - Hornung, Christine

AU - Miskun, Ivan

AU - Lippert, Wayne

AU - Mardor, Israel

AU - Moore, Iain

AU - Plab, Wolfgang R

AU - Purushothaman, Sivaji

AU - Rink, Ann-Kathrin

AU - Reiter, M. P.

AU - Scheidenberger, Christoph

AU - Weick, Helmut

PY - 2019/5/10

Y1 - 2019/5/10

N2 - Experiments with low-energy rare ion beams often suffer from a large amount of molecular contaminant ions. We present the simple isolation-dissociation-isolation method to suppress this kind of contamination. The method can be applied to almost all types of low-energy beamlines. In a first step, a coarse isolation of the mass-to-charge ratio of interest is performed, e.g. by a dipole magnet. In a second step, the ions are dissociated. The last step is again a coarse isolation of the mass-to-charge ratio around the ion of interest. The method was tested at the FRS Ion Catcher at GSI with a radioactive ion source installed inside the cryogenic stopping cell as well as with relativistic ions delivered by the synchrotron SIS-18 and stopped in the cryogenic stopping cell. The isolation and dissociation, here collision-induced dissociation, have been implemented in a gas-filled RFQ beamline. A reduction of molecular contamination by more than 4 orders of magnitude was achieved.

AB - Experiments with low-energy rare ion beams often suffer from a large amount of molecular contaminant ions. We present the simple isolation-dissociation-isolation method to suppress this kind of contamination. The method can be applied to almost all types of low-energy beamlines. In a first step, a coarse isolation of the mass-to-charge ratio of interest is performed, e.g. by a dipole magnet. In a second step, the ions are dissociated. The last step is again a coarse isolation of the mass-to-charge ratio around the ion of interest. The method was tested at the FRS Ion Catcher at GSI with a radioactive ion source installed inside the cryogenic stopping cell as well as with relativistic ions delivered by the synchrotron SIS-18 and stopped in the cryogenic stopping cell. The isolation and dissociation, here collision-induced dissociation, have been implemented in a gas-filled RFQ beamline. A reduction of molecular contamination by more than 4 orders of magnitude was achieved.

U2 - 10.1016/j.nimb.2019.04.072

DO - 10.1016/j.nimb.2019.04.072

M3 - Conference contribution

T3 - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

BT - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

PB - Elsevier

T2 - International Conference on Electromagnetic Isotope Separators and Related Topics

Y2 - 16 September 2018 through 21 September 2018

ER -

Greiner F, Dickel T, San Andrés SA, Bergmann J, Constantin P, Ebert J et al. Removal of molecular contamination in low-energy RIBs by the isolation-dissociationisolation method. In Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. Elsevier. 2019. (Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms). doi: 10.1016/j.nimb.2019.04.072

Removal of molecular contamination in low-energy RIBs by the isolation-dissociationisolation method

Abstract / Description of output

Publication series

Conference

Access to Document

Fingerprint

Cite this