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1.
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The electron affinity of astatine
/ Leimbach, David (CERN ; U. Gothenburg (main) ; Mainz U., Inst. Phys.) ; Karls, Julia (U. Gothenburg (main)) ; Guo, Yangyang (U. Groningen, VSI) ; Ahmed, Rizwan (NCP, Islamabad) ; Ballof, Jochen (CERN ; Mainz U., Inst. Kernchem.) ; Bengtsson, Lars (U. Gothenburg (main)) ; Pamies, Ferran Boix (CERN) ; Borschevsky, Anastasia (U. Groningen, VSI) ; Chrysalidis, Katerina (CERN ; Mainz U., Inst. Phys.) ; Eliav, Ephraim (Tel Aviv U. (main)) et al.
One of the most important properties influencing the chemical behavior of an element is the electron affinity (EA). Among the remaining elements with unknown EA is astatine, where one of its isotopes, $^{211}$At, is remarkably well suited for targeted radionuclide therapy of cancer. [...]
arXiv:2002.11418.-
2020 - 9 p.
- Published in : Nature Commun. 11 (2020) 3824
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2.
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Search for beta-delayed proton emission from $^{11}$Be
/ Riisager, K. (Aarhus U.) ; Borge, M.J.G. (CERN ; Madrid, Inst. Estructura Materia) ; Briz, J.A. (Madrid, Inst. Estructura Materia) ; Carmona-Gallardo, M. (Madrid U.) ; Forstner, O. (Vienna U.) ; Fraile, L.M. (Madrid U.) ; Fynbo, H.O.U. (Aarhus U.) ; Garzon Camacho, A. (Madrid, Inst. Estructura Materia) ; Johansen, J.G. (Aarhus U.) ; Jonson, B. (Chalmers U. Tech.) et al.
We report on an attempt to reproduce the observation of $\beta^-$-delayed proton emission from $^{11}$Be through detection of the final state nucleus $^{10}$Be with accelerator mass spectrometry. Twelve samples were collected at the ISOLDE facility at CERN at different separator settings, allowing tests of different sources of contamination to be carried out. [...]
arXiv:2001.02566.-
2020-03-30 - 8 p.
- Published in : Eur. Phys. J. A 56 (2020) 100
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3.
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4.
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Stellar and thermal neutron capture cross section of $^9$Be
/ Wallner, A (Vienna U. ; Australian Natl. U., Canberra (main)) ; Bichler, M (Vienna, Tech. U., Atominst.) ; Coquard, L (KIT, Karlsruhe) ; Dillmann, I (KIT, Karlsruhe) ; Forstner, O (U. Vienna (main)) ; Golser, R (U. Vienna (main)) ; Heil, M (KIT, Karlsruhe) ; Käppeler, F (KIT, Karlsruhe) ; Kutschera, W (U. Vienna (main)) ; Lederer-Woods, C (Edinburgh U.) et al.
The neutron capture cross section of Be9 for stellar energies was measured via the activation technique using the Karlsruhe Van de Graaff accelerator in combination with accelerator mass spectrometry at the Vienna Environmental Research Accelerator. To characterize the energy region of interest for astrophysical applications, activations were performed in a quasistellar neutron spectrum of kT=25 keV and for a spectrum at En=473±53 keV. [...]
2019 - 11 p.
- Published in : Phys. Rev. C 99 (2019) 015804
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5.
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Bunching and cooling of radioactive ions with REXTRAP
/ Schmidt, P (Mainz U., Inst. Phys.) ; Ames, F (Mainz U., Inst. Phys.) ; Bollen, G (Munich U.) ; Forstner, O (CERN) ; Huber, G (Mainz U., Inst. Phys.) ; Oinonen, M (CERN) ; Zimmer, J (Heidelberg, Max Planck Inst.)
The post-accelerator REX-ISOLDE at ISOLDE/CERN will deliver radioactive ion beams with energies up to 2.2 MeV/u. For this purpose, a Penning trap and an electron-beam ion source are combined with a linear accelerator. [...]
2002 - 7 p.
- Published in : Nucl. Phys. A 701 (2002) 550-556
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6.
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Laser photodetachment of radioactive $^{128}$I$^−$
/ Rothe, Sebastian (CERN) ; Sundberg, Julia (CERN ; U. Gothenburg) ; Welander, Jakob (U. Gothenburg) ; Chrysalidis, Katerina (CERN ; Mainz U., Inst. Phys.) ; Goodacre, Thomas Day (CERN) ; Fedosseev, Valentin (CERN) ; Fiotakis, Spyridon (CERN) ; Forstner, Oliver (U. Jena) ; Heinke, Reinhard (Mainz U., Inst. Phys.) ; Johnston, Karl (CERN) et al.
The first experimental investigation of the electron affinity (EA) of a radioactive isotope has been conducted at the CERN-ISOLDE radioactive ion beam facility. The EA of the radioactive iodine isotope (128)I (t (1/2) = 25 min) was determined to be 3.059 052(38) eV. [...]
2017 - 10 p.
- Published in : J. Phys. G 44 (2017) 104003
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7.
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Selective laser photodetachment of intense atomic and molecular negative ion beams with the ILIAS RFQ ion beam cooler
/ Martschini, Martin (Vienna U.) ; Pitters, Johanna (Vienna U. ; CERN) ; Moreau, Tobias (Vienna U.) ; Andersson, Pontus (Vienna U. ; Chalmers U. Tech.) ; Forstner, Oliver (Vienna U. ; Jena U.) ; Hanstorp, Dag (U. Gothenburg (main)) ; Lachner, Johannes (Vienna U.) ; Liu, Yuan (Oak Ridge) ; Priller, Alfred (Vienna U.) ; Steier, Peter (Vienna U.) et al.
The Ion Laser InterAction Setup (ILIAS) project at the University of Vienna aims at the exploration of negative ion beam filtering by selective laser photodetachment for applications in accelerator mass spectrometry (AMS). A gas-filled radio frequency quadrupole (RFQ) is used to decelerate and cool negative atomic and molecular ion beams with intensities of up to several hundred nA, and overlap them collinearly with a continuous wave (cw) laser beam. [...]
2017 - 9 p.
- Published in : Int. J. Mass Spectrometry 415 (2017) 9-17
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8.
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Measurement of shifts in the electron affinities of chlorine isotopes
/ Hanstorp, Dag (University of Gothenburg) ; Jakob, Welander (University of Gothenburg) ; Leimbach, David (University of Gothenburg) ; Ringvall-Moberg, Annie (University of Gothenburg and CERN) ; Godefroid, Michel (Université libre de Bruxelles) ; Jönsson, Per (Malmö University) ; Ekman, Jörgen (Malmö University) ; Brage, Tomas (Lund University) ; Wendt, Klaus (Johannes-Gutenberg Universität Mainz) ; Heinke, Reinhard (Johannes-Gutenberg Universität Mainz) et al.
CERN-INTC-2017-053 ; INTC-P-515.
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2017.
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9.
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Laser photodetachment of radioactive ions: towards the determination of the electronegativity of astatine
Reference: Poster-2017-585
Created: 2017. -1 p
Creator(s): Rothe, Sebastian; Sundberg, Julia; Welander, Jakob Emanuel; Chrysalidis, Katerina; Day Goodacre, Thomas [...]
Negatively charged ions are mainly stabilized through the electron correlation effect. A measure of the stability of a negative ion is the electron affinity, which the energy gain by attaching an electron to a neutral atom. This fundamental quantity is, due to the almost general lack of bound excited states, the only atomic property that can be determined with high accuracy for negative ions. We will present the results of the first laser photodetachment studies of radioactive negative ions at CERN-ISOLDE. The photodetachment threshold for the radiogenic iodine isotope 128I was measured successfully, demonstrating the performance of the upgraded GANDALPH experimental beam line. The first detection of photo-detached astatine atoms marks a milestone towards the determination of the EA of this radioactive element.
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© CERN Geneva
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10.
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Low energy reactions with radioactive ions at REX-ISOLDE—the 9 Li + 2 H case
/ Jeppesen, H B (Aarhus U.) ; Ames, F (Munich U., Neutron Group) ; Van den Bergh, P (Leuven U.) ; Bergmann, U C (CERN) ; Bollen, G (Michigan State U., NSCL) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Cederkäll, J (CERN) ; Van Duppen, P (Leuven U.) ; Emhofer, S (Munich U., Neutron Group) ; Forstner, O (CERN) et al.
/ISOLDE ; REX-ISOLDE
At the newly constructed postaccelerator REX-ISOLDE ( R adioactive beam Ex periment at ISOLDE) we have investigated reactions induced by a 9 Li beam incident on a deuterium target at an energy of 2.36 MeV/u. Most reaction channels were recorded. [...]
2005 - 19 p.
- Published in : Nucl. Phys. A 748 (2005) 374-392
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