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Tan Ahn

Assistant Professor
Experimental Nuclear Physics

B.S., Physics, Stony Brook University, 2002
M.S., Physics, Stony Brook University, 2004
Ph.D., Physics, Stony Brook University, 2008

Office Address: 223 NSH
Office Phone: 574-631-1524

Web page:

Research Interests

Atomic nuclei and their properties are determined by the individual protons and neutrons that make up the nucleus and the interactions between them. These ingredients result in a vast and diverse array of phenomena at the femto-scale. My research interest is in studying the emergent properties of nuclei using radioactive-ion beams in conjunction with what are called active-target detectors. This technique allows for the study of unstable nuclei that are otherwise experimentally inaccessible.

My research interests fall into three areas. 1) The cluster structure of nuclei. How and in what conditions do alpha-particle-like clusters form in light unstable nuclei? 2) The evolution of nuclear structure. How does shell structure change as the ratio of protons and neutrons becomes very asymmetric, in other words when nuclei become very proton- or neutron-rich? 3) Development of active-target techniques and analysis. How can we refine our experimental technique to take full advantage of radioactive-ion beams? To answer these questions, we perform experiments using light-ion reactions with radioactive beams available at Notre Dame and national user facilities.

Selected Publications

Resonance alpha scattering of 6He; limits of clustering in 10Be, D. Suzuki, A. Shore, W. Mittig, J. J. Kolata, D. Bazin, M. Ford, T. Ahn, F. D. Becchetti, D. Ben Ali, B. Bucher, J. Browne, X. Fang, M. Febbrarro, A. Fritsch, E. Galyaev, A. M. Howard, N. Keeley, W. G. Lynch, M. Ojaruega, A. L. Roberts, X. D. Tang, Phys. Rev. C, 87 054301 (2013)

Prototype AT-TPC: Toward a new generation active target time projection chamber for radioactive beam experiments, D. Suzuki, M. Ford, D. Bazin, W. Mittig, W. G. Lynch, T. Ahn, S. Aune, E. Galyaev, A. Fritsch, J. Gilbert, F. Montes, A. Shore, J. Yurkon, J. J. Kolata, J. Browne,    A. Howard, A. L. Roberts, X. D. Tang, Nuclear Instruments and Methods in Physics Research Section A 691, 39 (2012)

Prof. Ahn CV -- PDF file