Andrew D. Harken
Associate Research Scientist

  Research Interests
  • Radiation detector physics

  • Microbeam technologies

  • Material properties research and applications


Contact Information

Andrew Harken, Ph.D.
Center for Radiological Research
Nevis Laboratory, Columbia University
136 S. Broadway
Irvington, NY 10533

Tel: (914) 591-9244
Fax: (914) 591-9405


Academic Training  

Undergraduate: B.Sc. in Physics, University of Northern Iowa, 1999

        Graduate: M.Sc. in Mechanical Engineering (Materials Science), University of Nebraska-Lincoln, 2002

                        Ph.D. in Chemical and Materials Engineering, University of Nebraska-Lincoln, 2006


Professional Experience  

  • 2007-present: Post-Doctoral Research Scientist, Center for Radiological Research, Columbia University, NY
  • 2006: Engineering Consultant, Advanced Diamond Technologies, Romeoville, IL

Select Publications Online  

Some papers are available online in PDF format, which requires Adobe Acrobat Reader. (Acrobat Reader is free and can be downloaded here: )

A. Harken, G. Randers-Pehrson, D. Brenner. The Columbia University proton-induced soft X-ray microbeam. Nuc. Intr. And Meth. B 269: 1992-1996, 2011. [PDF]

A.W. Bigelow, G. Randers-Pehrson, G. Garty, C.R. Geard, Y. Xu, A.D. Harken, G.W. Johson, and D.J. Brenner. Ion, X-Ray, UV and Neutron Microbeam Systems For Cell Irradiation. AIP Conf. Proc. 1336: 351-355, 2011. [PDF]

A. Harken, G. Randers-Pehrson, D.J. Brenner. Development of a Proton-Induced X-Ray Microbeam at Columbia University. J. Rad. Res. 50: 114, 2009.

A.D. Harken, B.W. Robertson. Comparative modeling of performance limits of solid state neutron detectors based on planar B-rich capture layers. J. of Phys. D 39(23): 4961-4968, 2006. [PDF]

A.N. Caruso, P.A. Dowben, S. Balkir, Nathan Schemm, Kevin Osberg, R.W. Fairchild, Oscar Barrios Flores, Snjezana Balaz, A.D. Harken, B.W. Robertson, J.I. Brand. The all boron carbide diode neutron detector: Comparison with theory. Mat. Sci. and Eng. B 135(2): 129-133, 2006. [PDF]

C.Lundstedt, A.Harken, E.Day, B. Robertson, S.Adenwalla. Modelling Solid State Boron Carbide Low Energy Neutron Detectors. Nuc. Intr. And Meth. A 562(1): 380-388, 2006. [PDF]

A.D. Harken, E. Day, B. Robertson, S.Adenwalla. Boron Rich Semiconducting Boron Carbide Neutron Detector. Jap. J. Appl. Phys., 44(1A): 445-446, 2005.

L. Bernard, J. Monson, A. Sokolov, Zong-Yang Liu, C.-S. Yang, P.A. Dowben, A. Harken, P. Welsch, B.W. Robertson. Magnetoresistance in boron carbide junctions. Appl. Phys. Let., 83: 3743-3745, 2003.

B.W. Robertson, S. Adenwalla, A. Harken, P Welsch, J.I. Brand, P.A. Dowben, J.P. Claassen. A class of boron-rich solid-state neutron detectors. Appl. Phys. Let., 80: 3644-3646, 2002. [PDF]

S. Adenwalla, P. Welsch, A. Harken, J.I. Brand, A. Sezer, B.W. Robertson. High temperature boron carbide/n-silicon carbide heterojunction diodes. Appl. Phys. Lett., 79: 4397-4399, 2001. [PDF]


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