Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • Ph.D., Joint Institute for Nuclear Research (Russia) 1995
  • B.S., Plovdiv University (Bulgaria) 1988
  • M.S., Plovdiv University (Bulgaria) 1988
• 

  Duke Appointment History

  • Adjunct Associate Professor of Physics, Physics, Trinity College of Arts & Sciences 2015 - 2018
  • Assistant Research Professor of Physics, Physics, Trinity College of Arts & Sciences 2007 - 2011
• Publications & Artistic Works
• 

  Selected Publications

  • Academic Articles

    • Mashtakov, K. R., V. Y. Ponomarev, M. Scheck, S. W. Finch, J. Isaak, M. Zweidinger, O. Agar, et al. “Structure of high-lying levels populated in the ⁹⁶Y →⁹⁶Zr β decay (Accepted).” Physics Letters, Section B: Nuclear, Elementary Particle and High Energy Physics 820 (September 10, 2021). https://doi.org/10.1016/j.physletb.2021.136569.
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    • Kolos, K., A. M. Hennessy, N. D. Scielzo, V. E. Iacob, J. C. Hardy, M. A. Stoyer, A. P. Tonchev, et al. “New approach to precisely measure γ-ray intensities for long-lived fission products, with results for the decay of ⁹⁵Zr.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1000 (June 1, 2021). https://doi.org/10.1016/j.nima.2021.165240.
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    • Finch, S. W., M. Bhike, C. R. Howell, C. R. Krishichayan, W. Tornow, A. P. Tonchev, and J. B. Wilhelmy. “Measurements of Short-Lived Isomers from Photofission as a Method of Active Interrogation for Special Nuclear Materials.” Physical Review Applied 15, no. 3 (March 1, 2021). https://doi.org/10.1103/PhysRevApplied.15.034037.
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    • Krishichayan, Philine, M. Bhike, C. R. Howell, A. P. Tonchev, and W. Tornow. “Fission product yield measurements using monoenergetic photon beams.” Physical Review C 100, no. 1 (July 19, 2019). https://doi.org/10.1103/PhysRevC.100.014608.
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    • Shusterman, Jennifer A., Nicholas D. Scielzo, Keenan J. Thomas, Eric B. Norman, Suzanne E. Lapi, C Shaun Loveless, Nickie J. Peters, J David Robertson, Dawn A. Shaughnessy, and Anton P. Tonchev. “The surprisingly large neutron capture cross-section of ⁸⁸Zr.” Nature 565, no. 7739 (January 7, 2019): 328–30. https://doi.org/10.1038/s41586-018-0838-z.
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    • Pierson, B. D., A. M. Prinke, L. R. Greenwood, S. C. Stave, R. S. Wittman, J. G. Burch, J. T. Burke, et al. “Improved Cumulative Fission Yield Measurements with Fission Spectrum Neutrons on ²³⁵U.” Nuclear Data Sheets 155 (January 1, 2019): 86–97. https://doi.org/10.1016/j.nds.2019.01.005.
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    • Tornow, W., M. Bhike, S. W. Finch, S. W. Krishichayan, and A. P. Tonchev. “Measurement of the in 115 (γ,γ′) in 115m inelastic scattering cross section in the 1.8 to 3.7 MeV energy range with monoenergetic photon beams MEASUREMENT of the in 115 (γ, ... W. TORNOW et al.” Physical Review C 98, no. 6 (December 6, 2018). https://doi.org/10.1103/PhysRevC.98.064305.
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    • Raut, R., A. P. Tonchev, G. Rusev, W. Tornow, C. Iliadis, M. Lugaro, J. Buntain, et al. “Cross-section measurements of the 86Kr(γ,n) reaction to probe the s-process branching at 85Kr.” Physical Review Letters 111, no. 11 (September 11, 2013): 112501. https://doi.org/10.1103/physrevlett.111.112501.
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    • Rusev, G., N. Tsoneva, F. Dönau, S. Frauendorf, R. Schwengner, A. P. Tonchev, A. S. Adekola, et al. “Fine structure of the giant M1 resonance in 90Zr.” Physical Review Letters 110, no. 2 (January 9, 2013): 022503. https://doi.org/10.1103/physrevlett.110.022503.
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  • Conference Papers

    • Tonchev, A. P., C. Angell, M. Boswell, C. R. Howell, H. J. Karwowski, J. H. Kelley, W. Tornow, and N. Tsoneva. “Missing dipole excitation strength below the particle threshold.” In Proceedings of Science, Vol. 44, 2007.

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