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

Calvin R Howell

Office Location: 414 TUNL
Office Phone: (919) 660-2632
Email Address:
Web Page:

Experimental nuclear physics
Biological physics

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: Measurement of the cross section for neutron-neutron quasi-free scattering , in neutron deuteron break; Determination of the s-wave neutron-neutron, scattering length using photodisintegration of the triton; Nuclear structure, studies of nuclei used in the search for neutrinoless double beta decay;, Nuclear reaction measurements important for nuclear security and , homeland security; and Carbon and nitrogen accumulation , and translocation in plants.

Research Description:

Professor Howell is the Director of the Triangle Universities Nuclear Laboratory (TUNL). His research interests are the quantum chromodynamics (QCD) description of structure and reactions of few-nucleon systems, Big Bang and explosive nucleosynthesis, and applications of nuclear physics in biology, medicine and national security. His research includes: studies of few-nucleon reaction dynamics, measurements of the neutron-neutron scattering length, photodisintegration of 3He and the triton, 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
nuclear structure
ecology and plant physiology
material analysis and imaging with gamma-rays and neutrons

Recent Publications   (More Publications)

  1. L. J. Broussard, H. O. Back, M. S. Boswell, A. S. Crowell, P. Dendooven, G. S. Giri, C. R. Howell, M. F. Kidd, K. Jungmann, W. L. Kruithof, A. Mol, C. J. G. Onderwater, R. W. Pattie, Jr., P. D. Shidling, M. Sohani, D. J. van der Hoek, A. Rogachevskiy, E. Traykov, O. O. Versolato, L. Willmann, H. W. Wilschut, and A. R. Young, Measurement of the Half-Life of the T=1/2 Mirror Decay of 19Ne and its Implication on Physics Beyond the Standard Model, Phys. Rev. Lett., vol. 112 (2014), pp. 212301 .
  2. G. J. Weisel, W. Tornow, A. S. Crowell, J. H. Esterline, G. M. Hale, C. R. Howell, P. D. O’Malley, J. R. Tompkins and H. Witala, Neutron-Deuteron Analyzing Power Data at En= 22.5 MeV, Phys. Rev. C, vol. 89 (2014), pp. 054001 .
  3. C. Bhatia, B. Fallin, M.E. Gooden, C.R. Howell, J.H. Kelley, W. Tornow, C.W. Arnold, E.M. Bond, T.A. Bredeweg, M.M. Fowler, W.A. Moody, R.S. Rundberg, G. Rusev, D.J. Vieira, J.B. Wilhelmy, J.A. Becker, R. Macri, C. Ryan, S.A. Sheets, M.A. Stoyer, A.P. Tonchev, et al., Dual-Fission Chamber and Neutron Beam Characterization for Fission Product Yields Using Monoenergetic Beam, Nucl. Instrum. Methods A, vol. 757 (2014), pp. 7 .
  4. M.E. Gooden, B.A. Fallin, S.W. Finch, J.H. Kelley, C.R. Howell, G. Rusev, A.P. Tonchev, W. Tornow, and V. Stanislav, Partial Cross Sections for Neutron-Induced Reactions on natCu at En=6, 8, 10, 12, 14, and 16 MeV for 0-neutrino double beta decay Background Studies, Int. Nuclear Data Conference, New York, 2013, Nucl. Data Sheets, vol. 119 (2014), pp. 121 .
  5. A.G. Weisenberger, B. Kross, S.J. Lee, J. McKisson, J.E. McKisson, W. Xi, C. Zorn, C.R. Howell, A.S. Crowell, C.D. Reid and M. Smith, Nuclear physics detector technology applied to plant biology research, Nucl.Instrum.Meth. A, vol. 718 (2013), pp. 157 .

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)