Measurements of charge state distributions of 0.74 and 1.4 MeV/u heavy ions passing through dilute gases
In many modern heavy-ion accelerator facilities, gas strippers are used to increase the projectile charge state for improving the acceleration efficiency of ion beams to higher energies. For this application, the knowledge on the behavior of charge state distributions of heavy-ions after passing thr...
Main Authors: | , , , , , , , , , , , |
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Format: | Article |
Language: | English |
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American Physical Society
2017-04-01
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Series: | Physical Review Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.20.043503 |
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author | P. Scharrer Ch. E. Düllmann W. Barth J. Khuyagbaatar A. Yakushev M. Bevcic P. Gerhard L. Groening K. P. Horn E. Jäger J. Krier H. Vormann |
author_facet | P. Scharrer Ch. E. Düllmann W. Barth J. Khuyagbaatar A. Yakushev M. Bevcic P. Gerhard L. Groening K. P. Horn E. Jäger J. Krier H. Vormann |
author_sort | P. Scharrer |
collection | DOAJ |
description | In many modern heavy-ion accelerator facilities, gas strippers are used to increase the projectile charge state for improving the acceleration efficiency of ion beams to higher energies. For this application, the knowledge on the behavior of charge state distributions of heavy-ions after passing through dilute gases is of special interest. Charge state distributions of uranium (^{238}U), bismuth (^{209}Bi), titanium (^{50}Ti), and argon (^{40}Ar) ion beams with energies of 0.74 MeV/u and 1.4 MeV/u after passing through hydrogen (H_{2}), helium (He), carbon dioxide (CO_{2}), nitrogen (N_{2}), oxygen (O_{2}), neon (Ne), and argon (Ar) gases were measured. Gas stripper target thicknesses up to 100 μg/cm^{2} were applied. The observed behavior of the charge state distributions, including their width and mean charge state, are discussed. The measurements show the highest equilibrium charge state at 1.4 MeV/u for ^{238}U on H_{2} gas of 29.2±1.2. Narrow charge state distributions are observed for ^{238}U and ^{209}Bi on H_{2} and He gas, which are highly beneficial, e.g., for the production of beams of high intensities in accelerators. |
first_indexed | 2024-12-13T02:36:40Z |
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id | doaj.art-418523aebd85432a9a9ba89aeeb23d41 |
institution | Directory Open Access Journal |
issn | 2469-9888 |
language | English |
last_indexed | 2024-12-13T02:36:40Z |
publishDate | 2017-04-01 |
publisher | American Physical Society |
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series | Physical Review Accelerators and Beams |
spelling | doaj.art-418523aebd85432a9a9ba89aeeb23d412022-12-22T00:02:23ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882017-04-0120404350310.1103/PhysRevAccelBeams.20.043503Measurements of charge state distributions of 0.74 and 1.4 MeV/u heavy ions passing through dilute gasesP. ScharrerCh. E. DüllmannW. BarthJ. KhuyagbaatarA. YakushevM. BevcicP. GerhardL. GroeningK. P. HornE. JägerJ. KrierH. VormannIn many modern heavy-ion accelerator facilities, gas strippers are used to increase the projectile charge state for improving the acceleration efficiency of ion beams to higher energies. For this application, the knowledge on the behavior of charge state distributions of heavy-ions after passing through dilute gases is of special interest. Charge state distributions of uranium (^{238}U), bismuth (^{209}Bi), titanium (^{50}Ti), and argon (^{40}Ar) ion beams with energies of 0.74 MeV/u and 1.4 MeV/u after passing through hydrogen (H_{2}), helium (He), carbon dioxide (CO_{2}), nitrogen (N_{2}), oxygen (O_{2}), neon (Ne), and argon (Ar) gases were measured. Gas stripper target thicknesses up to 100 μg/cm^{2} were applied. The observed behavior of the charge state distributions, including their width and mean charge state, are discussed. The measurements show the highest equilibrium charge state at 1.4 MeV/u for ^{238}U on H_{2} gas of 29.2±1.2. Narrow charge state distributions are observed for ^{238}U and ^{209}Bi on H_{2} and He gas, which are highly beneficial, e.g., for the production of beams of high intensities in accelerators.http://doi.org/10.1103/PhysRevAccelBeams.20.043503 |
spellingShingle | P. Scharrer Ch. E. Düllmann W. Barth J. Khuyagbaatar A. Yakushev M. Bevcic P. Gerhard L. Groening K. P. Horn E. Jäger J. Krier H. Vormann Measurements of charge state distributions of 0.74 and 1.4 MeV/u heavy ions passing through dilute gases Physical Review Accelerators and Beams |
title | Measurements of charge state distributions of 0.74 and 1.4 MeV/u heavy ions passing through dilute gases |
title_full | Measurements of charge state distributions of 0.74 and 1.4 MeV/u heavy ions passing through dilute gases |
title_fullStr | Measurements of charge state distributions of 0.74 and 1.4 MeV/u heavy ions passing through dilute gases |
title_full_unstemmed | Measurements of charge state distributions of 0.74 and 1.4 MeV/u heavy ions passing through dilute gases |
title_short | Measurements of charge state distributions of 0.74 and 1.4 MeV/u heavy ions passing through dilute gases |
title_sort | measurements of charge state distributions of 0 74 and 1 4 mev u heavy ions passing through dilute gases |
url | http://doi.org/10.1103/PhysRevAccelBeams.20.043503 |
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