Calvin R Howell, Professor and Director, TUNL and Duke FEL Lab

Office Location: 414 TUNL
Office Phone: (919) 660-2632
Email Address: howell@tunl.duke.edu
Web Page: http://www.tunl.duke.edu/Directory/Faculty/howell/
Specialties:
Experimental nuclear physics
Education:
Doctor of Philosophy, Duke University, 1984
Master of Art, Duke University, 1980
Bachelor of Science, Davidson College, 1978
Research Categories: Experimental Nuclear Physics
Current projects:
Study of the Star Anomaly in neutron-deuteron breakup, Measurement of the neutron-neutron scattering length, Carbon and nitrogen accumulation and translocation in plants, Element imaging in materials, Explosive nucleosynthesis
Research Description:
Professor Howell is the Director of the Triangle Universities Nuclear Laboratory (TUNL). His research interests are the quantum chromodynamics (QCD) description of nucleons and few-nucleon interactions, Big Bang and explosive nucleosynthesis, and applications of nuclear physics in biology, medicine and national security. His current research projects include: the studies of few-nucleon reaction dynamics, direct and indirect measurements of the neutron-neutron scattering length, photodisintegration of the deuteron and beryllium at energies relevant to astrophysics processes, and studies of the carbon and nitrogen accumulation and translocation in plants using short-lived radioactive isotopes and positron emission tomography.
Areas of Interest:
experimental nuclear physics
few-nucleon reactions
nuclear astrophysics
ecology and plant physiology
material analysis and imaging with gamma-rays and neutrons
Recent Publications
(More Publications)
- Matthew R. Kiser, Chantal D. Reid, Alexander S. Crowell, Richard P. Phillips, and Calvin R. Howell, Exploring the transport of plant metabolites using positron emitting radiotracers,
HFSP Journal, vol. 2
(August, 2008),
pp. 189–204 .
- A. P. Tonchev, C. T. Angell, M. Boswell, A. S. Crowell, B. Fallin, S. Hammond, C. R. Howell, A. Hutcheson, H. J. Karwowski, J. H. Kelley, R. S. Pedroni, W. Tornow, J.A. Becker, D. Dashdor, J. Kenneally, R.A. Macri, M.A. Stoyer, C.Y.Wu, E. Bond, M.B. Chadwick, J. Fitzpatrick, T. Kawano, R.S. Rundberg, A. Slemmons, D. J. Vieira, and J. B. Wilhelmy, Measurement of the 241Am(n, 2n) Reaction Cross Section from 7.6 to 14.5 MeV,
Phys. Rev. C, vol. 77
(2008),
pp. 54610 .
- R.T. Braun, W. Tornow, C.R. Howell, D.E. Gonzalez Trotter, C.D. Roper, F. Salinas, H.R. Setze, R.L. Walter, and G.J. Weisel, Neutron-Proton Analyzing Power at 12 MeV and Inconsistencies in Parametrizations of Nucleon- Nucleon Data,
Phys. Lett. B, vol. 660
(2008),
pp. 161 .
- Q. Chen, C.R. Howell, T.S. Carman, W.R. Gibbs, B.F. Gibson, A. Hussein, M.R. Kiser, G. Mertens, C.F. Moore, C. Morris, A. Obst, E. Pasyuk, C.D. Roper, F. Salinas, H.R. Setze, I. Slaus, S. Sterbenz, W. Tornow, R.L. Walter, C.R. Whiteley, and M. Whitton, Measurement of the Neutron-Neutron Scattering Length Using the π-d Capture Reaction,
Phys. Rev. C, vol. 77
(2008),
pp. 054002 .
- A.J. Kapadia, A.C. Sharma, J.E. Bender, G.D. Tourassi, C.R. Howell, A.S. Crowell, M.R. Kiser, B.P. Harrawood, R.S. Pedroni, and C.E. Floyd, Neutron Stimulated Emission Computed Tomography for Diagnosis of Breast Cancer,
IEEE Trans. on Nucl. Sci., vol. 55
(2008),
pp. 501 .
Curriculum Vitae
- Current Ph.D. Students
(Former Students)
- Postdocs Mentored
- Robert A. Macri (March 01, 2004 - September 30, 2004)
- Shigeyuki Tajima (January 1, 2004 - August 31, 2004)
- Alexander S. Crowell (January 1, 2002 - December 31, 2007)
- Steve Churchwell (1998/01-2001/08)