Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Kaeppeler, Franz"'
Autor:
Reifarth, René, Erbacher, Philipp, Fiebiger, Stefan, Göbel, Kathrin, Heftrich, Tanja, Heil, Michael, Käppeler, Franz, Klapper, Nadine, Kurtulgil, Deniz, Langer, Christoph, Lederer-Woods, Claudia, Mengoni, Alberto, Thomas, Benedikt, Schmidt, Stefan, Weigand, Mario, Wiescher, Michael
Publikováno v:
Eur. Phys. J. Plus (2018) 133: 424
Neutron capture cross sections are one of the most important nuclear inputs to models of stellar nucleosynthesis of the elements heavier than iron. The activation technique and the time-of-flight method are mostly used to determine the required data
Externí odkaz:
http://arxiv.org/abs/1902.09838
Autor:
Reifarth, René, Göbel, Kathrin, Heftrich, Tanja, Weigand, Mario, Jurado, Beatriz, Käppeler, Franz, Litvinov, Yuri A.
Publikováno v:
Physical Review Accelerators and Beams 20, 044701 (2017)
We discuss the possibility to build a neutron target for nuclear reaction studies in inverse kinematics utilizing a storage ring and radioactive ion beams. The proposed neutron target is a specially designed spallation target surrounded by a large mo
Externí odkaz:
http://arxiv.org/abs/1704.08689
Autor:
Ludwig, Peter, Rugel, Georg, Dillmann, Iris, Faestermann, Thomas, Fimiani, Leticia, Hain, Karin, Korschinek, Gunther, Lachner, Johannes, Poutivtsev, Mikhail, Knie, Klaus, Heil, Michael, Käppeler, Franz, Wallner, Anton
The $^{58}$Ni$(n,\gamma)^{59}$Ni cross section was measured with a combination of the activation technique and accelerator mass spectrometry (AMS). The neutron activations were performed at the Karlsruhe 3.7 MV Van de Graaff accelerator using the qua
Externí odkaz:
http://arxiv.org/abs/1702.03352
Autor:
Wallner, Anton, Belgya, Tamas, Buczak, Kathrin, Coquard, Laurent, Bichler, Max, Dillmann, Iris, Golser, Robin, Käppeler, Franz, Karakas, Amanda, Kutschera, Walter, Lederer, Claudia, Mengoni, Alberto, Pignatari, Marco, Priller, Alfred, Reifarth, Rene, Steier, Peter, Szentmiklosi, Laszlo
The detection of long-lived radionuclides through ultra-sensitive single atom counting via accelerator mass spectrometry (AMS) offers opportunities for precise measurements of neutron capture cross sections, e.g. for nuclear astrophysics. The techniq
Externí odkaz:
http://arxiv.org/abs/1611.09006
Autor:
Mohr, Peter, Heinz, Christian, Pignatari, Marco, Dillmann, Iris, Mengoni, Alberto, Kaeppeler, Franz
Publikováno v:
Astrophys. J. 827, 29 (2016)
The doubly-magic nucleus $^{16}$O has a small neutron capture cross section of just a few tens of microbarn in the astrophysical energy region. Despite of this, $^{16}$O plays an important role as neutron poison in the astrophysical slow neutron capt
Externí odkaz:
http://arxiv.org/abs/1605.02639
Autor:
Bisterzo, Sara, Gallino, Roberto, Kaeppeler, Franz, Wiescher, Michael, Imbriani, Gianluca, Straniero, Oscar, Cristallo, Sergio, Goerres, Joachim, deBoer, Richard
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 2015, Volume 449, Issue 1, p.506-527
This paper provides a detailed analysis of the main component of the slow neutron capture process (the s-process), which accounts for the solar abundances of half of the nuclei with 90 <~ A <~ 208. We examine the impact of the uncertainties of the tw
Externí odkaz:
http://arxiv.org/abs/1507.06798
Autor:
Mei, Bo, Aumann, Thomas, Bishop, Shawn, Blaum, Klaus, Boretzky, Konstanze, Bosch, Fritz, Brandau, Carsten, Bräuning, Harald, Davinson, Thomas, Dillmann, Iris, Dimopoulou, Christina, Ershova, Olga, Fülöp, Zsolt, Geissel, Hans, Glorius, Jan, Gyürky, György, Heil, Michael, Käppeler, Franz, Kelic-Heil, Aleksandra, Kozhuharov, Christophor, Langer, Christoph, Bleis, Tudi Le, Litvinov, Yuri, Lotay, Gavin, Marganiec, Justyna, Münzenberg, Gottfried, Nolden, Fritz, Petridis, Nikolaos, Plag, Ralf, Popp, Ulrich, Rastrepina, Ganna, Reifarth, René, Riese, Björn, Rigollet, Catherine, Scheidenberger, Christoph, Simon, Haik, Sonnabend, Kerstin, Steck, Markus, Stöhlke, Thomas, Szücs, Tamás, Sümmerer, Klaus, Weber, Günter, Weick, Helmut, Winters, Danyal, Winters, Natalya, Woods, Philip, Zhong, Qiping
Publikováno v:
Phys. Rev. C 92, 035803 (2015)
This work presents a direct measurement of the $^{96}$Ru($p, \gamma$)$^{97}$Rh cross section via a novel technique using a storage ring, which opens opportunities for reaction measurements on unstable nuclei. A proof-of-principle experiment was perfo
Externí odkaz:
http://arxiv.org/abs/1507.04916
Autor:
Liu, Nan, Savina, Michael R., Gallino, Roberto, Davis, Andrew M., Bisterzo, Sara, Gyngard, Frank, Kaeppeler, Franz, Cristallo, Sergio, Dauphas, Nicolas, Pellin, Michael J., Dillmann, Iris
We present strontium, barium, carbon, and silicon isotopic compositions of 61 acid-cleaned presolar SiC grains from Murchison. Comparison with previous data shows that acid washing is highly effective in removing both strontium and barium contaminati
Externí odkaz:
http://arxiv.org/abs/1501.05883
Publikováno v:
Nuclear Data Sheets 120 (2014) 171
The KADoNiS (Karlsruhe Astrophysical Database of Nucleosynthesis in Stars) project is an astrophysical online database for cross sections relevant for nucleosynthesis in the $s$ process and the $\gamma$ process. The $s$-process database (www.kadonis.
Externí odkaz:
http://arxiv.org/abs/1408.3688
Autor:
Lugaro, Maria, Tagliente, Giuseppe, Karakas, Amanda I., Milazzo, Paolo M., Kaeppeler, Franz, Davis, Andrew M., Savina, Michael R.
We present model predictions for the Zr isotopic ratios produced by slow neutron captures in C-rich asymptotic giant branch (AGB) stars of masses 1.25 to 4 Msun and metallicities Z=0.01 to 0.03, and compare them to data from single meteoritic stardus
Externí odkaz:
http://arxiv.org/abs/1311.2660