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: 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 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 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

Teaching (Spring 2012):

  • Physics 54l9r.05, General physics ii -(rec) Synopsis
    Physics 047, Th 03:30 PM-05:30 PM
  • Physics 54l9r.08, General physics ii -(rec) Synopsis
    Physics 047, F 01:15 PM-03:30 PM
  • Physics 54l9r.09, General physics ii -(rec) Synopsis
    Physics 154, F 03:30 PM-05:30 PM

Recent Publications   (More Publications)

  1. J. M. Mueller, R. J. Charity, R. Shane, L. G. Sobotka, S. J. Waldecker, W. H. Dickhoff, A. S. Crowell, J. H. Esterline, B. Fallin and C. R. Howell, Asymmetry Dependence of Nucleon Correlations in Spherical Nuclei Extracted from a Dispersive- Optical-Model Analysis, Phys. Rev. C, vol. 83 (2011), pp. 064605 .
  2. R. Raut, A. S. Crowell, B. Fallin, C. R. Howell, C. Huibregtse, J. H. Kelley, T. Kawano, E. Kwan, G. Rusev and A. P. Tonchev, Cross-Section Measurements of Neutron-Induced Reactions on GaAs Using Monoenergetic Beams from 7.5 to 15 MeV, Phys. Rev. C, vol. 83 (2011), pp. 044621 .
  3. A. S. Adekola, C. T. Angell, S. L. Hammond, A. Hill, C. R. Howell, H. J. Karwowski, J. H. Kelley, and E. Kwan, Discovery of Low-Lying E1 and M1 Strengths in 232Th, Phys. Rev. C, vol. 83 (2011), pp. 034615 .
  4. E. Kwan, G. Rusev, A. S. Adekola, F. D¨onau, S. L. Hammond, C. R. Howell, H. J. Karwowski, J. H. Kelley, R. S. Pedroni and R. Raut, Discrete Deexcitations in 235U Below 3 MeV from Nuclear Resonance Fluorescence, Phys. Rev. C, vol. 83 (2011), pp. 041601 .
  5. C. W. Arnold, T. B. Clegg, H. J Karwowski, G. C. Rich, J. R. Tompkins, and C. R. Howell, Characterization of an INVS Model IV Neutron Counter for High Precision (gamma,n) Cross-Section Measurements, Nucl. Instrum. Methods A, vol. 647 (2011), pp. 55 .

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)