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Development of an active ²³⁸UF₆ gas target

Eckardt, C. ; Enders, J. ; Freudenberger, M. ; Göök, A. ; von Neumann-Cosel, P. ; Oberstedt, A. ; Oberstedt, S.
Oberstedt, S (ed.) :

Development of an active ²³⁸UF₆ gas target.
In: Physics Procedia 31 Proc. Int. Workshop GAMMA-1 Emission of Prompt Gamma-Rays in Fission and Related Topics, Novi Sad, Serbia (2011). In: Physics Procedia , 31 Elsevier Science BV , Amsterdam
[Konferenz- oder Workshop-Beitrag], (2012)

Kurzbeschreibung (Abstract)

At the superconducting 130 MeV Darmstadt electron linac S-DALINAC a new source of spin-polarized electrons using a GaAs cathode has been installed, opening the path for experiments with polarized electron and photon beams for nuclear structure studies at low momentum transfers, e.g., the search for forward-backward asymmetries originating from parity non-conservation (PNC) in the photon-induced fission process of 238U. Detailed studies of different properties, e.g., the energy dependence of fission modes, the population of fission isomers, or the search for (PNC) effects in the photon-induced fission process of ²³⁸U, depends on high quality data, therefore needing high luminosities. An active gas target containing uranium may overcome the problem that large solid target thicknesses cause poor energy and angular resolution. A single Frisch-grid ionization chamber has been built to test a mixture of standard counting gases (e.g., argon) with depleted uraniumhexafluoride (²³⁸UF6) using a triple alpha source, evaluating signal quality and drift velocity. For mass fractions up to 2 percent of ²³⁸U in the counting gas. The drift velocity increases with rising UF₆ content, while a good signal quality and energy resolution is preserved

Typ des Eintrags: Konferenz- oder Workshop-Beitrag (Keine Angabe)
Erschienen: 2012
Herausgeber: Oberstedt, S
Autor(en): Eckardt, C. ; Enders, J. ; Freudenberger, M. ; Göök, A. ; von Neumann-Cosel, P. ; Oberstedt, A. ; Oberstedt, S.
Titel: Development of an active ²³⁸UF₆ gas target
Sprache: Englisch
Kurzbeschreibung (Abstract):

At the superconducting 130 MeV Darmstadt electron linac S-DALINAC a new source of spin-polarized electrons using a GaAs cathode has been installed, opening the path for experiments with polarized electron and photon beams for nuclear structure studies at low momentum transfers, e.g., the search for forward-backward asymmetries originating from parity non-conservation (PNC) in the photon-induced fission process of 238U. Detailed studies of different properties, e.g., the energy dependence of fission modes, the population of fission isomers, or the search for (PNC) effects in the photon-induced fission process of ²³⁸U, depends on high quality data, therefore needing high luminosities. An active gas target containing uranium may overcome the problem that large solid target thicknesses cause poor energy and angular resolution. A single Frisch-grid ionization chamber has been built to test a mixture of standard counting gases (e.g., argon) with depleted uraniumhexafluoride (²³⁸UF6) using a triple alpha source, evaluating signal quality and drift velocity. For mass fractions up to 2 percent of ²³⁸U in the counting gas. The drift velocity increases with rising UF₆ content, while a good signal quality and energy resolution is preserved

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Physics Procedia
Band: 31
Ort: Amsterdam
Verlag: Elsevier Science BV
Freie Schlagworte: Photofission, S-DALINAC, Active Target, UF6, Ionization Chamber, Detector Development
Fachbereich(e)/-gebiet(e): Fachbereich Physik > Kernphysik
Zentrale Einrichtungen > HIC for FAIR
Zentrale Einrichtungen > Sonderforschungsbereich 634: Kernstruktur, nukleare Astrophysik und fundamentale Experimente bei kleinen Impulsüberträgen am supraleitenden Darmstädter Elektronenbeschleuniger S-DALINAC > C: Fundamentale Experimente > C5: Experimente mit polarisierten Elektronen und Photonen
Zentrale Einrichtungen > Sonderforschungsbereich 634: Kernstruktur, nukleare Astrophysik und fundamentale Experimente bei kleinen Impulsüberträgen am supraleitenden Darmstädter Elektronenbeschleuniger S-DALINAC > C: Fundamentale Experimente
Zentrale Einrichtungen > Sonderforschungsbereich 634: Kernstruktur, nukleare Astrophysik und fundamentale Experimente bei kleinen Impulsüberträgen am supraleitenden Darmstädter Elektronenbeschleuniger S-DALINAC
Fachbereich Physik
Zentrale Einrichtungen
Veranstaltungstitel: Physics Procedia 31 Proc. Int. Workshop GAMMA-1 Emission of Prompt Gamma-Rays in Fission and Related Topics, Novi Sad, Serbia (2011)
Hinterlegungsdatum: 02 Jul 2012 13:37
Zusätzliche Informationen:

GAMMA-1 Emission of Prompt Gamma-Rays in Fission and Related Topics

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