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Recent Publications

  • Isospin Character of Low-Lying Pygmy Dipole States in 208Pb via Inelastic Scattering of 17O Ions
    F.C. L. Crespi, A. Bracco, R. Nicolini, D. Mengoni, L. Pellegri, E.G. Lanza, S. Leoni, A. Maj, M. Kmiecik, B. Birkenbach, J. Eberth, J. Jolie, P. Reiter, B. Siebeck, et al.
    Phys. Rev. Lett. 113 (2014) 012501
  • Germanium-gated γ-γ fast timing of excited states in fission fragments using the EXILL&FATIMA spectrometer
    J.-M. Régis, G.S. Simpson, A. Blanc, G. de France, M. Jentschel, U. Köster, P. Mutti, V. Paziy, N. Saed-Samii, T. Soldner, C.A. Ur, W. Urban, A.M. Bruce, F. Drouet, L.M. Fraile, S. Ilieva, J. Jolie, W. Korten, T. Kröll, S. Lalkovski, H. Mach, N. Mărginean, G. Pascovici, Zs. Podolyak, P.H. Regan, O.J. Roberts, J.F. Smith, C. Townsley, A. Vancraeyenest, N. Warr
    Nucl. Instr. and Meth. A 763 (2014) 210
  • A method to correct differential nonlinearities in subranging analog-to-digital converters used for digital gamma-ray spectroscopy
    A. Hennig, C. Fransen, W. Hennig, G. Pascovici, N. Warr, M. Weinert, and A. Zilges
    Nucl. Instr. and Meth. A 758 (2014) 69
    arXiv: 1406.0963
  • The γ-ray spectrometer HORUS and its applications for nuclear astrophysics
    L. Netterdon, V. Derya, J. Endres, C. Fransen, A. Hennig, J. Mayer, C. Müller-Gatermann, A. Sauerwein, P. Scholz, M. Spieker, and A. Zilges
    Nucl. Instr. and Meth. A 754 (2014) 94
    arXiv: 1405.2703
  • Bose-Fermi symmetry in the odd-even gold isotopes
    T. Thomas, J.M. Régis, J. Jolie, S. Heinze, M. Albers, C. Bernards, C. Fransen, and D. Radeck
    Nucl. Phys. A 925 (2014) 96
  • The low-velocity transient field technique with radioactive ion beams: The g factor of the first excited 2+ state in 72Zn
    A. Illana, A. Jungclaus, R. Orlandi, A. Perea, C. Bauer, J. A. Briz, J. L. Egido, R. Gernhäuser, J. Leske, D. Mücher, J. Pakarinen, N. Pietralla, M. Rajabaliz, T. R. Rodriguez, D. Seiler, C. Stahl, F. Wenander, D. Voulot, A. Blazhev, H. De Witte, P. Reiter, M. Seidlitz, B. Siebeck, M. J. Vermeulen, and N. Warr
    Phys. Rev. C 89 (2014) 054316
  • Shape coexistence in the neutron-deficient even-even 182-188Hg isotopes studied via Coulomb excitation
    N. Bree, K. Wrzosek-Lipska, A. Petts, A. Blazhev, B. Bruyneel, Ch. Fransen, K. Geibel, H. Hess, P. Reiter, N. Warr, A. Wiens, et al.
    Phys. Rev. Lett. 112 (2014) 162701
  • Isospin properties of electric dipole excitations in 48Ca
    V. Derya, D. Savran, J. Endres, M.N. Harakeh, H. Hergert, J.H. Kelley, P. Papakonstantinou, N. Pietralla, V.Yu. Ponomarev, R. Roth, G. Rusev, A.P. Tonchev, W. Tornow, H.J. Wörtche, and A. Zilges
    Phys. Lett. B 730 (2014) 288
    arXiv: 1402.0406
  • The structure of 193Au within the Interacting Boson Fermion Model
    T. Thomas, C. Bernards, J.-M. Régis, M. Albers, C. Fransen, J. Jolie, S. Heinze, D. Radeck, N. Warr, and K.-O. Zell
    Nucl. Phys. A 922 (2014) 200
  • Coulomb excitation of 29,30Na - Mapping the borders of the island of inversion
    M. Seidlitz, P. Reiter, R. Altenkirch, A. Blazhev, B. Bruyneel, K. Geibel, F. Radeck, D. Schneiders, B. Siebeck, T. Steinbach, J. Taprogge, N. Warr, et al.
    Phys. Rev. C 89 (2014) 024309
  • Coulomb excitation of neutron-rich Cd isotopes
    S. Ilieva, M. Thürauf, Th. Kröll, R. Krücken, A. Blazhev, Ch. Fransen, H. Hess, D. Martin, P. Reiter, Th. Rolke, A. Scherillo, M. Seidlitz, S. Thiel, N. Warr, D. Weisshaar, A. Wiens, et al.
    Phys. Rev. C 89 (2014) 014313
  • Nuclear Reactions (An Introduction)
    H. Paetz gen. Schieck
    Springer Lecture Notes in Physics Vol. 882 (2014), Springer Heidelberg
    ISBN 978-3-642-53985-5, ISBN 978-3-642 53986-2(eBook)


Between the 31.03. and the 04.04.2014 the Intensive Week Course "Accelerator Mass Spectrometry: Technique and Applications" (Prof. Dr. W. Kutschera et al.) took place at the IKP in the framework of the BCGS (Bonn-Cologne Graduate School). An overview of further special courses is available here.

AGATA Demonstrator

The AGATA Demonstrator with five fully equipped AGATA triple cluster detectors and two AGATA double cluster detectors is operational at the GSI Helmholtzzentrum für Schwerionenforschung, Germany.

The spectrometer comprises an unprecedented amount of fully digitised HPGe channels. Online data processing includes pulse shape analysis to determine the position of each interaction within the array. Gamma ray tracking algorithms are based on this information and track down the path of the detected gamma rays, allowing e.g. precise Doppler corrections and high peak to total ratios.

A variety of experimental methods were employed, like differential RDDS-Plunger measurements, coincidences with reaction products detected by the PRISMA spectrometer (at INFN) and investigation of exotic nuclei delivered by the FRS.

More news and information about AGATA, especially the projects of the Cologne working group, can be found at the local AGATA sites.

Accelerator Mass Spectrometry (AMS)


The final parts of CologneAMS have arrived on May 18th 2010 and are presently assembled. A first test operation of the accelerator is planned for early 2011.
Furthermore the second AMS user workshop took place from July 9th to July 10th, 2010. A detailed program can be found here. Potential users could inform themselves about the current status of the facility, the utilisation concept and the possible applications.


The new beam profile monitor ikp-bpm

A new detector to measure the beam profile of degraded beams for the HISPEC/DESPEC collaboration at FAIR is being under development at the institute.

The remarkable feature will be its ability to give the user not only a real time profile with a mm resolution, but also the tracking of the current beam. Thereby the ... (read more)

IKP Software Repository

Commonly used IKP-made programms, as the legendary spectra analysing tool TV, can be directly downloaded from our new download directory.

Manuals and documentation – as available – may be found here or in the IKP DokuWiki (login required!).

Information for Visitors

Large Spiral Galaxy NGC 1232
Foto: ESO

On these pages, scientists from outside Cologne will find all neccessary information concerning the Tandem accelerator facility.

Direct links: radiation protection | technical details | How to apply for beamtime?

Information on current experimental setups can be obtained here; important collaborations are summarised here.


Information about Ancient-Charm-Project

Gemeinsam mit 10 Institutionen aus sechs europäischen Staaten werden im Rahmen der Ancient-Charm-Kollaboration bildgebende Verfahren zur Untersuchung kulturell bedeutsamer Gegenstände (z. B. archäologischer Proben) entwickelt.

Was wir damit zu tun haben, erfahren Sie hier.