TU Darmstadt / ULB / TU-Bibliographie

Development of an active ²³⁸UF₆ gas target

Eckardt, C and Enders, J and Freudenberger, M and Göök, A and von Neumann-Cosel, P and Oberstedt, A and 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
[Conference or Workshop Item], (2012)

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

Item Type: Conference or Workshop Item (UNSPECIFIED)
Erschienen: 2012
Editors: Oberstedt, S
Creators: Eckardt, C and Enders, J and Freudenberger, M and Göök, A and von Neumann-Cosel, P and Oberstedt, A and Oberstedt, S
Title: Development of an active ²³⁸UF₆ gas target
Language: English
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

Journal or Publication Title: Physics Procedia
Volume: 31
Place of Publication: Amsterdam
Publisher: Elsevier Science BV
Uncontrolled Keywords: Photofission, S-DALINAC, Active Target, UF6, Ionization Chamber, Detector Development
Divisions: 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
Event Title: Physics Procedia 31 Proc. Int. Workshop GAMMA-1 Emission of Prompt Gamma-Rays in Fission and Related Topics, Novi Sad, Serbia (2011)
Date Deposited: 02 Jul 2012 13:37
Additional Information:

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

Export:

Bearbeiten (Login erforderlich)

View Item View Item