Journal article
Authors list: Neumayr, JB; Beck, L; Habs, D; Heinz, S; Szerypo, J; Thirolf, PG; Varentsov, V; Voit, F; Ackermann, D; Beck, D; Block, M; Di, Z; Eliseev, SA; Geissel, H; Herfurth, F; Hessberger, FP; Hofmann, S; Kluge, HJ; Mukherjee, M; Münzenberg, G; Petrick, M; Quint, W; Rahaman, S; Rauth, C; Rodríguez, D; Scheidenberger, C; Sikler, G; Wang, Z; Weber, C; Plass, WR; Breitenfeldt, M; Chaudhuri, A; Marx, G; Schweikhard, L; Dodonov, AF; Novikov, Y; Suhonen, M
Publication year: 2006
Pages: 489-500
Journal: Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
Volume number: 244
Issue number: 2
ISSN: 0168-583X
DOI Link: https://doi.org/10.1016/j.nimb.2005.10.017
Publisher: Elsevier
Abstract:
An ion-catcher device consisting of a buffer-gas stopping cell and a radio-frequency quadrupole (RFQ) has been built for the SHIP-TRAP facility at GSI. Results of characterisation measurements with the buffer-gas cell and the extraction RFQ performed at GSI in Darmstadt and at the MLL (Maier-Leibnitz-Laboratory) in Garching are presented. The set-up was tested off-line using laser-produced ions and on-line using stable beams and fusion-evaporation products. During the on-line measurements the ions with total energies of around 200 keV/u were thermalised in helium buffer gas at 40-60 mbar. In the following they were guided by a combination of electric RF- and DC-fields until they were transported by the gas flow through the extraction nozzle. After being extracted by a supersonic gas jet the ions were separated from the buffer gas and guided by the extraction RFQ towards subsequent detection systems. Depending on the electric-field strength average extraction times of around 10 ms and an overall efficiency (including stopping and extraction) between 4% and 8% have been achieved. (c) 2005 Elsevier B.V. All rights reserved.
Citation Styles
Harvard Citation style: Neumayr, J., Beck, L., Habs, D., Heinz, S., Szerypo, J., Thirolf, P., et al. (2006) The ion-catcher device for SHIPTRAP, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 244(2), pp. 489-500. https://doi.org/10.1016/j.nimb.2005.10.017
APA Citation style: Neumayr, J., Beck, L., Habs, D., Heinz, S., Szerypo, J., Thirolf, P., Varentsov, V., Voit, F., Ackermann, D., Beck, D., Block, M., Di, Z., Eliseev, S., Geissel, H., Herfurth, F., Hessberger, F., Hofmann, S., Kluge, H., Mukherjee, M., ...Suhonen, M. (2006). The ion-catcher device for SHIPTRAP. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 244(2), 489-500. https://doi.org/10.1016/j.nimb.2005.10.017
Keywords
ACCELERATOR; buffer-gas cell; extraction nozzle; FACILITY; GAS CELL; MASS-SPECTROMETER; PENNING TRAP; PROJECT; RADIOACTIVE IONS; radio-frequency fields; RF ion funnel; SHORT-LIVED ISOTOPES
