Study of the Average Charge States of 188Pb and 252,254No Ions at the Gas-filled Separator TASCA
(2012) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 689. p.40-46- Abstract
- The average charge states of Pb-188 and No-252,No-254 ions in dilute helium gas were measured at the gas-filled recoil separator TASCA. Hydrogen gas was also used as a filling gas for measurements of the average charge state of No-254. Helium and hydrogen gases at pressures from 0.2 mbar to 2.0 mbar were used. A strong dependence of the average charge state on the pressure of the filling gases was observed for both, helium and hydrogen. The influence of this dependence, classically attributed to the so-called "density effect", on the performance of TASCA was investigated. The average charge states of No-254 ions were also measured in mixtures of helium and hydrogen gases at low gas pressures around 1.0 mbar. From the experimental results... (More)
- The average charge states of Pb-188 and No-252,No-254 ions in dilute helium gas were measured at the gas-filled recoil separator TASCA. Hydrogen gas was also used as a filling gas for measurements of the average charge state of No-254. Helium and hydrogen gases at pressures from 0.2 mbar to 2.0 mbar were used. A strong dependence of the average charge state on the pressure of the filling gases was observed for both, helium and hydrogen. The influence of this dependence, classically attributed to the so-called "density effect", on the performance of TASCA was investigated. The average charge states of No-254 ions were also measured in mixtures of helium and hydrogen gases at low gas pressures around 1.0 mbar. From the experimental results simple expressions for the prediction of average charge states of heavy ions moving in rarefied helium gas, hydrogen gas, and in their mixture were derived. (C) 2012 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3147447
- author
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Gas-filled separator, Average charge state, Heavy ion, TASCA
- in
- Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
- volume
- 689
- pages
- 40 - 46
- publisher
- Elsevier
- external identifiers
-
- wos:000307797500007
- scopus:84863504978
- ISSN
- 0167-5087
- DOI
- 10.1016/j.nima.2012.06.007
- language
- English
- LU publication?
- yes
- id
- a67ef147-7c0a-47fe-b927-ae5c0bcf8a45 (old id 3147447)
- date added to LUP
- 2016-04-01 14:53:38
- date last changed
- 2022-01-28 03:04:26
@article{a67ef147-7c0a-47fe-b927-ae5c0bcf8a45, abstract = {{The average charge states of Pb-188 and No-252,No-254 ions in dilute helium gas were measured at the gas-filled recoil separator TASCA. Hydrogen gas was also used as a filling gas for measurements of the average charge state of No-254. Helium and hydrogen gases at pressures from 0.2 mbar to 2.0 mbar were used. A strong dependence of the average charge state on the pressure of the filling gases was observed for both, helium and hydrogen. The influence of this dependence, classically attributed to the so-called "density effect", on the performance of TASCA was investigated. The average charge states of No-254 ions were also measured in mixtures of helium and hydrogen gases at low gas pressures around 1.0 mbar. From the experimental results simple expressions for the prediction of average charge states of heavy ions moving in rarefied helium gas, hydrogen gas, and in their mixture were derived. (C) 2012 Elsevier B.V. All rights reserved.}}, author = {{Khuyagbaatar, J. and Ackermann, D. and Andersson, Lise-Lotte and Ballof, J. and Bruechle, W. and Duellmann, Ch. E. and Dvorak, J. and Eberhardt, K. and Even, J. and Gorshkov, A. and Graeger, R. and Hessberger, F. -P. and Hild, D. and Hoischen, Robert and Jaeger, E. and Kindler, B. and Kratz, J. V. and Lahiri, S. and Lommel, B. and Maiti, M. and Merchan, E. and Rudolph, Dirk and Schaedel, M. and Schaffner, H. and Schausten, B. and Schimpf, E. and Semchenkov, A. and Serov, A. and Tuerler, A. and Yakushev, A.}}, issn = {{0167-5087}}, keywords = {{Gas-filled separator; Average charge state; Heavy ion; TASCA}}, language = {{eng}}, pages = {{40--46}}, publisher = {{Elsevier}}, series = {{Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment}}, title = {{Study of the Average Charge States of 188Pb and 252,254No Ions at the Gas-filled Separator TASCA}}, url = {{https://lup.lub.lu.se/search/files/4226594/4001546.pdf}}, doi = {{10.1016/j.nima.2012.06.007}}, volume = {{689}}, year = {{2012}}, }