1.
|
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
|
|
2.
|
Fulltext - external server - Full text
|
3.
|
Ramsey Method of Separated Oscillatory Fields for High-Precision Penning Trap Mass Spectrometry
/ George, S ; Baruah, S ; Blank, B ; Blaum, K ; Breitenfeldt, M ; Hager, U ; Herfurth, F ; Herlert, Alexander (CERN) ; Kellerbauer, A G ; Kluge, H J et al.
Ramsey's method of separated oscillatory fields is applied to the excitation of the cyclotron motion of short-lived ions in a Penning trap to improve the precision of their measured mass. The theoretical description of the extracted ion-cyclotron-resonance line shape is derived out and its correctness demonstrated experimentally by measuring the mass of the short-lived $^{38}$Ca nuclide with an uncertainty of $1.6\cdot 10^{-8}$ using the ISOLTRAP Penning trap mass spectrometer at CERN. [...]
nucl-ex/0701027.-
2007 - 5 p.
- Published in : Phys. Rev. Lett. 98 (2007) 162501
APS Published version, local copy: PDF; Access to fulltext document: PDF; External link: nucl-ex/0701027 PDF
|
|
4.
|
The Ramsey method in high-precision mass spectrometry with Penning traps : Experimental results
/ George, S (Johannes Gutenberg-Univ., Mainz, Germany ; GSI, Darmstadt, Germany) ; Blaum, K (Johannes Gutenberg-Univ., Mainz, Germany ; GSI, Darmstadt, Germany) ; Herfurth, F (GSI, Darmstadt, Germany) ; Herlert, A (CERN) ; Kretzschmar, M (Johannes Gutenberg-Univ., Mainz, Germany) ; Nagy, S (Johannes Gutenberg-Univ., Mainz, Germany) ; Schwarz, S (Michigan State Univ., USA) ; Schweikhard, L (Ernst-Moritz-Arndt-Univ, Greifswald, Germany) ; Yazidjian, C (GSI, Darmstadt, Germany ; CERN)
The highest precision in direct mass measurements is obtained with Penning trap mass spectrometry. Most experiments use the interconversion of the magnetron and cyclotron motional modes of the stored ion due to excitation by external radiofrequency-quadrupole fields. [...]
physics/0701236.-
2007 - 12 p.
- Published in : Int. J. Mass Spectrom. 264 (2007) 110-121
Access to fulltext document: PDF; External link: physics/0701236 PDF
|
|
5.
|
Ramsey Method of Separated Oscillatory Fields for High-Precision Penning Trap Mass Spectrometry
/ George, S (GSI, Germany ; Institut fur Physik, Johannes Gutenberg-Universitat, Germany) ; Baruah, S (Institut fur Physik, Ernst-Moritz-Arndt-Universitat, Germany) ; Blank, B (Centre d’Etudes Nucleaires de Bordeaux-Gradignan, France) ; Blaum, K (GSI, Germany ; Institut fur Physik, Johannes Gutenberg-Universitat, Germany) ; Breitenfeldt, M (Institut fur Physik, Ernst-Moritz-Arndt-Universitat, Germany) ; Hager, U (Department of Physics, University of Jyvaskyla, Finland) ; Herfurth, F (GSI, Germany) ; Herlert, A (CERN) ; Kellerbauer, A G (Max-Planck Institut fur Kernphysik, Germany) ; Kluge, H J (GSI, Germany ; Physikalisches Institut, Ruprecht-Karls-Universitat, Germany) et al.
Ramsey’s method of separated oscillatory fields is applied to the excitation of the cyclotron motion of short-lived ions in a Penning trap to improve the precision of their measured mass values. The theoretical description of the extracted ion-cyclotron-resonance line shape is derived and its correctness demonstrated experimentally by measuring the mass of the short-lived 38Ca nuclide with an uncertainty of 1.1×10-8 using the Penning trap mass spectrometer ISOLTRAP at CERN. [...]
2007
- Published in : Phys. Rev. Lett. 98 (2007) 162501
APS Published version, local copy: PDF;
|
|
6.
|
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
|
|
7.
|
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;
|
|
8.
|
ISOLTRAP mass measurements of exotic nuclides at $\delta$m/m=10$^{-8}$
/ Blaum, K. (U. Mainz, PRISMA ; Darmstadt, GSI) ; Audi, G. (CSNSM, Orsay) ; Beck, D. (Darmstadt, GSI) ; Bollen, G. (Michigan State U., NSCL) ; Delahaye, P. (CERN) ; George, S. (U. Mainz, PRISMA) ; Guénaut, C. (CSNSM, Orsay) ; Herfurth, F. (Darmstadt, GSI) ; Herlert, A. (CERN ; Greifswald U.) ; Kellerbauer, A. (CERN) et al.
The ISOLTRAP experiment at the ISOLDE facility at CERN is a Penning trap mass spectrometer for on-line mass measurements on short-lived radionuclides. It allows the determination of atomic masses of exotic nuclides with a relative uncertainty of only 10$^{-8}$. [...]
2005
- Published in : Nucl. Phys. A 752 (2005) 317c-320c
In : 22nd International Nuclear Physics Conference, Göteborg, Sweden, 27 Jun - 2 Jul 2004, pp.317c-320c
|
|
9.
|
An Emittance Evaluation Toolbox
/ Liakin, D A (Moscow, ITEP) ; Forck, P (Darmstadt, GSI) ; Hoffmann, T (Darmstadt, GSI)
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.TUPC059
|
|
10.
|
|