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Development of an Ionization Chamber for the Measurement of the$^{16}$ O(n, ${\alpha }$ )$^{13}$ C Cross-Section at the CERN n_TOF Facility
/ Urlass, Sebastian (TU, Dresden (main) ; HZDR, Dresden ; CERN) ; Junghans, Arnd R (HZDR, Dresden ; CERN) ; Hartmann, Andreas (HZDR, Dresden) ; Mingrone, Federica (CERN) ; Sobiella, Manfred (HZDR, Dresden) ; Stach, Daniel (HZDR, Dresden) ; Tassan-Got, Laurent (CERN) ; Weinberger, David (HZDR, Dresden)
/n_TOF Collaboration
The$^{16}$ O(n, ${\alpha }$ )$^{13}$ C reaction, as the inverse reaction of the astrophysically important$^{13}$ C( ${\alpha }$ , n)$^{16}$ O reaction, is proposed to be measured at the neutron time-of-flight (n_TOF) facility of CERN. To this purpose, a Double Frisch Grid Ionization Chamber (DFGIC) containing the oxygen atoms as a component in the counting gas has been developed and a prototype was constructed at Helmholtz-Zentrum Dresden-Rossendorf(HZDR), in Germany. [...]
2019 - 4 p.
- Published in : Springer Proc. Phys. 219 (2019) 457-460
In : Nuclei in the Cosmos XV (NIC XV), Assergi, Italy, 24 - 29 Jun 2018, pp.457-460
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Gating of charge sensitive preamplifiers for the use at pulsed radiation sources
/ Urlass, Sebastian (HZDR, Dresden ; CERN ; TU, Dresden) ; Junghans, Arnd (HZDR, Dresden ; CERN) ; Mingrone, Federica (CERN ; Nat. Tech. U., Athens) ; Peronnard, Paul (CERN) ; Stach, Daniel (HZDR, Dresden) ; Tassan-Got, Laurent (CNRS/IN2P3 IJCLab ; CERN ; Nat. Tech. U., Athens) ; Weinberger, David (HZDR, Dresden)
/n_TOF Collaboration
The development of a switch circuit to gate charge sensitive preamplifiers for use at pulsed radiation sources will be presented. This development was used for the $^{16}$O(n,$\alpha$)$^{13}$C reaction measurement with a Double Frisch Grid Ionization Chamber (DFGIC) at the neutron time-of-flight facility CERN n_TOF in Geneva, Switzerland. [...]
Geneva : CERN, 2021 - 9 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1002 (2021) 165297
Fulltext: PDF;
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Neutron total cross section measurements of gold and tantalum at the nELBE photoneutron source
/ Hannaske, Roland (Dresden, Tech. U. ; HZDR, Dresden) ; Elekes, Zoltan (HZDR, Dresden) ; Beyer, Roland (HZDR, Dresden) ; Junghans, Arnd (HZDR, Dresden) ; Bemmerer, Daniel (HZDR, Dresden) ; Birgersson, Evert (HZDR, Dresden) ; Ferrari, Anna (HZDR, Dresden) ; Grosse, Eckart (HZDR, Dresden ; Dresden, Tech. U.) ; Kempe, Mathias (HZDR, Dresden ; Dresden, Tech. U.) ; Kögler, Toni (HZDR, Dresden ; Dresden, Tech. U.) et al.
Neutron total cross sections of 197 Au and nat Ta have been measured at the nELBE photoneutron source in the energy range from 0.1 - 10 MeV with a statistical uncertainty of up to 2 % and a total systematic uncertainty of 1 %. This facility is optimized for the fast neutron energy range and combines an excellent t ime structure of the neutron pulses (electron bunch width 5 ps) with a short flight path of 7 m. [...]
2014
Published version from CERN: PDF;
In : European Research Infrastructures for Nuclear Data Applications (ERINDA) workshop, CERN, Geneva, Switzerland, 1 - 3 Oct 2013, pp.15-23
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Electron Beam Final Focus System For Thomson Scattering At Elbe
/ Krämer, J.M. (Danfysik, Jyllinge ; HZDR, Dresden ; TU, Dresden (main)) ; Budde, M. (Danfysik, Jyllinge) ; Bødkera, F. (Danfysik, Jyllinge) ; Irman, A. (HZDR, Dresden) ; Jochmann, A. (HZDR, Dresden) ; Kristensena, J.P. (Danfysik, Jyllinge) ; Lehnert, U. (HZDR, Dresden) ; Michel, P. (HZDR, Dresden) ; Schramm, U. (HZDR, Dresden ; TU, Dresden (main))
The design of an electron beam final focus system (FFS) aiming for high-flux laser-Thomson backscattering X-ray sources at ELBE is presented. A telescope system consisting of four permanent magnet based quadrupoles was found to have significantly less chromatic aberrations than a quadrupole doublet or triplet as commonly used. [...]
CERN-ACC-2016-0048.-
Geneva : CERN, 2016
- Published in : Nucl. Instrum. Methods Phys. Res., A 830 (2016) 532–535
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Inelastic scattering of fast neutrons from $^{56}$Fe
/ Beyer, R (HZDR, Dresden) ; Schwengner, R (HZDR, Dresden) ; Hannaske, R (HZDR, Dresden ; Dresden, Tech. U.) ; Junghans, A R (HZDR, Dresden) ; Massarczyk, R (HZDR, Dresden ; Dresden, Tech. U.) ; Anders, M (HZDR, Dresden ; Dresden, Tech. U.) ; Bemmerer, D (HZDR, Dresden) ; Ferrari, A (HZDR, Dresden) ; Kögler, T (HZDR, Dresden ; Dresden, Tech. U.) ; Röder, M (HZDR, Dresden ; Dresden, Tech. U.) et al.
Inelastic scattering of fast neutrons from $^{56}$Fe was studied at the photoneutron source nELBE. The neutron energies were determined on the basis of a timeof- flight measurement. [...]
2014
Published version from CERN: PDF;
In : European Research Infrastructures for Nuclear Data Applications (ERINDA) workshop, CERN, Geneva, Switzerland, 1 - 3 Oct 2013, pp.87-93
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Electron beam final focus system for Thomson scattering at ELBE
/ Krämer, J.M. (Danfysik, Jyllinge ; HZDR, Dresden ; TU, Dresden (main)) ; Budde, M. (Danfysik, Jyllinge) ; Bødker, F. (Danfysik, Jyllinge) ; Irman, A. (HZDR, Dresden) ; .Jochmann A. (HZDR, Dresden) ; Kristensen, J.P. (Danfysik, Jyllinge) ; Lehnert U., HZDR ; Michel, P. (HZDR, Dresden) ; Schrammb, U. (HZDR, Dresden ; TU, Dresden (main))
The design of an electron beam final focus system (FFS) aiming for high-flux laser-Thomson backscattering X-ray sources at ELBE is presented. A telescope system consisting of four permanent magnet based quadrupoles was found to have significantly less chromatic aberrations than a quadrupole doublet or triplet as commonly used. [...]
CERN-ACC-2016-0049.-
Geneva : CERN, 2016
- Published in : Nucl. Instrum. Methods Phys. Res., A 830 (2016) 532-535
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Electromagnetic dipole strength distribution in $^{124,128,132,134}$Xe below the neutron separation energy
/ Massarczyk, R (HZDR, Dresden ; Dresden, Tech. U.) ; Schwengner, R (HZDR, Dresden) ; Dönau, F (HZDR, Dresden) ; Frauendorf, S (U. Notre Dame (main)) ; Bemmerer, D (HZDR, Dresden) ; Beyer, R (HZDR, Dresden ; Dresden, Tech. U.) ; Butterling, M (HZDR, Dresden ; Dresden, Tech. U.) ; Hannaske, R (HZDR, Dresden ; Dresden, Tech. U.) ; Junghans, A (HZDR, Dresden) ; Koegler, T (HZDR, Dresden ; Dresden, Tech. U.) et al.
Dipole strength functions in the chain of xenon isotopes are analyzed on the basis of photon-scatterde experiments with bremsstrahlung at the ELBE facility in Dresden, Germany, and at the HI S facility in Durham, North Carolina, USA. The evolution of dipole strength with neutron excess and nuclear deformation is studied..
2014
Published version from CERN: PDF;
In : European Research Infrastructures for Nuclear Data Applications (ERINDA) workshop, CERN, Geneva, Switzerland, 1 - 3 Oct 2013, pp.153-155
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Single-shot betatron source size measurement from a laser-wakefield accelerator
/ Köhler, A. (HZDR, Dresden ; TU, Dresden (main)) ; Couperus, J.P. (HZDR, Dresden ; TU, Dresden (main)) ; Zarini, O. (HZDR, Dresden ; TU, Dresden (main)) ; Jochmann, A. (HZDR, Dresden) ; Irman, A. (HZDR, Dresden) ; Schramm, U. (HZDR, Dresden ; TU, Dresden (main))
Betatron radiation emitted by accelerated electrons in laser-wakefield accelerators can be used as a diagnostic tool to investigate electron dynamics during the acceleration process. We analyze the spectral characteristics of the emitted Betatron pattern utilizing a 2D x-ray imaging spectroscopy technique. [...]
CERN-ACC-2016-0056.-
Geneva : CERN, 2016
- Published in : Nucl. Instrum. Methods Phys. Res., A 829 (2016) 265–269
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Transmutation of high-level radioactive waste - Perspectives
/ Junghans, Arnd (HZDR, Dresden) ; Beyer, Roland (HZDR, Dresden) ; Grosse, Eckart (Dresden, Tech. U.) ; Hannaske, Roland (HZDR, Dresden ; Dresden, Tech. U.) ; Kögler, Toni (HZDR, Dresden ; Dresden, Tech. U.) ; Massarczyk, Ralf (HZDR, Dresden ; Dresden, Tech. U.) ; Schwengner, Ronald (HZDR, Dresden) ; Wagner, Andreas (HZDR, Dresden)
In a fast neutron spectrum essentially all long-lived actinides (e.g. Plutonium) undergo fission and thus can be transmuted into generally short lived fission products. [...]
2014
Published version from CERN: PDF;
In : European Research Infrastructures for Nuclear Data Applications (ERINDA) workshop, CERN, Geneva, Switzerland, 1 - 3 Oct 2013, pp.175-181
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