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1.
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New mass data for the rp-process above Z=32
/ Herfurth, F (Darmstadt, GSI) ; Delahaye, P (CERN) ; Dworschak, M (Darmstadt, GSI) ; Audi, G (CSNSM, Orsay) ; Mukherjee, M (Darmstadt, GSI) ; Beck, D (Darmstadt, GSI) ; Guenaut, C (CSNSM, Orsay) ; Rahaman, S (Darmstadt, GSI) ; Weber, C (Mainz U., Inst. Phys. ; Darmstadt, GSI) ; Lunney, D (CSNSM, Orsay) et al.
High-accuracy mass measurements have been performed with the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN. The short-lived nuclides $^{70,71,72,73}$Se, $^{72,73,74,75}$Br, and $^{98,99,100,101,103}$Ag have been measured with an average uncertainty of a few keV. [...]
2011
- Published in : Eur. Phys. J. A 47 (2011) 75
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2.
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Approaching the $N=82$ shell closure with mass measurements of Ag and Cd isotopes
/ Breitenfeldt, M (Greifswald U.) ; Borgmann, Ch (Heidelberg, Max Planck Inst.) ; Audi, G (Orsay) ; Baruah, S (Greifswald U.) ; Beck, D (Darmstadt, GSI) ; Blaum, K (Heidelberg, Max Planck Inst. ; Heidelberg U.) ; Bohm, Ch (Heidelberg, Max Planck Inst.) ; Cakirli, R B (Heidelberg, Max Planck Inst. ; Istanbul U.) ; Casten, R F (Yale U.) ; Delahaye, P (CERN) et al.
2010 - 10 p.
- Published in : Phys. Rev. C 81 (2010) 034313
APS Published version, local copy: PDF;
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3.
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Masses and charge radii of $^{17–22}$Ne and the two-proton-halo candidate $^{17}$Ne
/ Geithner, W (Mainz U., Inst. Phys.) ; Neff, T (Darmstadt, GSI) ; Audi, G (CSNSM-IN2P3-CNRS, Orsay) ; Blaum, K (Mainz U., Inst. Phys. ; Darmstadt, GSI) ; Delahaye, P (CERN) ; Feldmeier, H (Darmstadt, GSI) ; George, S (Mainz U., Inst. Phys. ; Darmstadt, GSI) ; Guénaut, C (CSNSM-IN2P3-CNRS, Orsay) ; Herfurth, F (Darmstadt, GSI) ; Herlert, A (CERN ; Greifswald U.) et al.
2008
- Published in : Phys. Rev. Lett. 101 (2008) 252502
APS Published version, local copy: PDF;
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4.
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Mass measurements beyond the major r-process waiting point $^{80}$Zn
/ Baruah, S. (Greifswald U.) ; Audi, G. (CSNSM, Orsay) ; Blaum, K. (Darmstadt, GSI ; Mainz U., Inst. Phys.) ; Dworschak, M. (Darmstadt, GSI) ; George, S. (Darmstadt, GSI ; Mainz U., Inst. Phys.) ; Guenaut, C. (CSNSM, Orsay) ; Hager, U. (Jyvaskyla U.) ; Herfurth, F. (Darmstadt, GSI) ; Herlert, A. (Greifswald U.) ; Kellerbauer, A. (CERN) et al.
High-precision mass measurements on neutron-rich zinc isotopes $^{71m,72-81}$Zn have been performed with the Penning trap mass spectrometer ISOLTRAP. For the first time the mass of $^{81}$Zn has been experimentally determined. [...]
arXiv:0811.2294.-
2008 - 4 p.
- Published in : Phys. Rev. Lett. 101 (2008) 262501
APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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5.
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Restoration of the N=82 Shell Gap from Direct Mass Measurements of $^{132,134}$Sn
/ Dworschak, M (GSI, Darmstadt, Germany) ; Audi, G (CNRS, Univ. Paris Sud, Orsay, France) ; Blaum, K (GSI, Darmstadt, Germany ; Johannes Gutenberg-Univ., Mainz, Germany ; Max Planck Inst. for Nuclear Physics, Heidelberg, Germany) ; Delahaye, P (CERN) ; George, S (GSI, Darmstadt, Germany ; Johannes Gutenberg-Univ., Mainz, Germany) ; Hager, U (Univ. Jyväskylä, Jyväskylä, Finland) ; Herfurth, F (GSI, Darmstadt, Germany) ; Herlert, A (CERN) ; Kellerbauer, A G (Max Planck Inst. for Nuclear Physics, Heidelberg, Germany) ; Kluge, H J (GSI, Darmstadt, Germany ; Ruprecht-Karls-Univ., Heidelberg, Germany) et al.
A high-precision direct Penning trap mass measurement has revealed a 0.5-MeV deviation of the binding energy of $^{134}$Sn from the currently accepted value. The corrected mass assignment of this neutron-rich nuclide restores the neutron-shell gap at N=82, previously considered to be a case of “shell quenching.” In fact, the new shell gap value for the short-lived $^{132}$Sn is larger than that of the doubly-magic $^{48}$Ca which is stable. [...]
2008
- Published in : Phys. Rev. Lett. 100 (2008) 072501
APS Published version, local copy: PDF;
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6.
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Electric and magnetic field optimization procedure for Penning trap mass spectrometers
/ Beck, D. (Darmstadt, GSI) ; Blaum, K. (Darmstadt, GSI ; Heidelberg, Max Planck Inst.) ; Bollen, G. (Michigan State U., NSCL) ; Delahaye, P. (CERN) ; George, S. (Darmstadt, GSI) ; Guenaut, C. (CSNSM, Orsay) ; Herfurth, F. (Darmstadt, GSI) ; Herlert, A. (Greifswald U.) ; Lunney, D. (CSNSM, Orsay) ; Schweikhard, L. (Greifswald U.) et al.
Significant systematic errors in high-precision Penning trap mass spectrometry can result from electric and magnetic field imperfections. An experimental procedure to minimize these uncertainties is presented for the on-line Penning trap mass spectrometer ISOLTRAP, located at ISOLDE/CERN. [...]
arXiv:0805.4549.-
2009 - 25 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 598 (2009) 635-641
Fulltext: PDF; External link: Fulltext
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7.
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High-precision mass measurements for reliable nuclear astrophysics calculations
/ Herlert, A ; Baruah, S ; Blaum, K ; Breitenfeldt, M ; Delahaye, P ; Dworschak, M ; George, S ; Guénaut, C ; Hager, U ; Herfurth, F et al.
2006
- Published in : PoS: NIC-IX (2006) , pp. 051
Published version from PoS: PDF;
In : 9th International Symposium on Nuclear Astrophysic: Nuclei in the Cosmos, CERN, Geneva, Switzerland, 25 - 30 Jun 2006, pp.051
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8.
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Towards a magnetic field stabilization at ISOLTRAP for high-accuracy mass measurements on exotic nuclides
/ Marie-Jeanne, M ; Alonso, J ; Blaum, K ; Djekic, S ; Dworschak, M ; Hager, U ; Herlert, A (CERN) ; Nagy, S ; Savreux, R ; Schweikhard, L et al.
The field stability of a mass spectrometer plays a crucial role in the accuracy of mass measurements. In the case of mass determination of short-lived nuclides with a Penning trap, major causes of fluctuations are temperature variations in the vicinity of the trap and pressure changes in the liquid helium cryostat of the superconducting magnet. [...]
2008
- Published in : Nucl. Instrum. Methods Phys. Res., A 587 (2008) 464-473
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9.
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Time-separated oscillatory fields for high-precision mass measurements on short-lived Al and Ca nuclides
/ George, Simon (Darmstadt, GSI ; Mainz U., Inst. Phys.) ; Audi, Georges (CSNSM, Orsay) ; Blank, B. (CENBG, Gradignan) ; Blaum, K. (Darmstadt, GSI ; Mainz U., Inst. Phys. ; Heidelberg, Max Planck Inst.) ; Breitenfeldt, M. (Greifswald U.) ; Hager, U. (Jyvaskyla U.) ; Herfurth, F. (Darmstadt, GSI) ; Herlert, A. (CERN) ; Kellerbauer, A. (Heidelberg, Max Planck Inst.) ; Kluge, H.J. (Darmstadt, GSI ; Heidelberg U.) et al.
High-precision Penning trap mass measurements on the stable nuclide $^{27}$Al as well as on the short-lived radionuclides $^{26}$Al and $^{38,39}$Ca have been performed by use of radio-frequency excitation with time-separated oscillatory fields, i.e. Ramsey's method, as recently introduced for the excitation of the ion motion in a Penning trap, was applied. [...]
arXiv:0801.2593.-
2008 - 7 p.
- Published in : EPL 82 (2008) 50005
Fulltext: PDF; External link: Fulltext
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10.
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Penning Trap Mass Spectrometry for Nuclear Structure Studies
/ Blaum, K ; George, Sebastian ; Beck, Dietrich ; Breitenfeldt, Martin ; Herfurth, Frank ; Herlert, Alexander (CERN) ; Kellerbauer, Alban ; Kluge, H Jurgen ; Lunney, David ; Savreux, Romain et al.
2006 - 8 p.
- Published in : Hyperfine Interact. 171 (2006) 83-91
In : 7th International Workshop on Application of Lasers in Atomic Nucleai Research, Poznan, Poland, 29 May - 1 Jun 2006, pp.83-91
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