Berkeley Lab

Daniel Hellfeld

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Daniel Hellfeld

PhD Candidate

Dept. of Nuclear Engineering

University of California, Berkeley

Daniel Hellfeld is currently a Ph.D. candidate in the nuclear engineering department at UC Berkeley and a graduate research fellow with the Nuclear Science and Security Consortium. His research interests are in novel radiation detection systems, specifically to be applied in the areas of nuclear nonproliferation and safeguards. He has a B.S. degree in physics from UC Santa Barbara and a M.S. degree in nuclear engineering from Texas A&M University. His master’s thesis was on remote nuclear reactor antineutrino directionality via elastic electron scattering in large gadolinium doped water Cherenkov detectors. This work was carried out in collaboration with Lawrence Livermore National Laboratory. His current research is focused on coded aperture imaging of low energy gamma rays with cadmium zinc telluride detectors. The work is being done in collaboration with the Lawrence Berkeley National Laboratory Applied Nuclear Physics research group headed by Prof. Kai Vetter. Upon the completion of his degree, Daniel plans to continue performing research in radiation detection instrumentation in either the national laboratory or university setting.

Selected Publications:

D. Hellfeld, P. Barton, D. Gunter, L. Mihailescu, K. Vetter, “A Spherical Active Coded Aperture for 4π Gamma-ray Imaging”, IEEE Trans. Nucl. Sci., vol. 64, no. 11, pp. 2837-2842, 2017.
D. Hellfeld, S. Dazeley, A. Bernstein, C. Marianno, “Reconstructing the Direction of Reactor Antineutrinos via Electron Scattering in Gd-Doped Water Cherenkov Detectors”, Nucl. Instrum. Methods A, vol. 841, pp. 130-138, 2017.