Calvin R. Howell

Professor of Physics

Office Location: 
221 Dfell, Durham, NC 27708
Front Office Address: 
Box 90308, Durham, NC 27708-0308
Phone: 
(919) 660-2632

Overview

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.

Education & Training

  • Ph.D., Duke University 1984

Kapadia, AJ, Sharma, AC, Tourassi, GD, Bender, JE, Crowell, AS, Kiser, MR, Howell, CR, and Jr, CEF. "Non-invasive estimation of potassium (39K) in Bovine Liver using Neutron Stimulated Emission Computed Tomography (NSECT)." IEEE Nuclear Science Symposium Conference Record 4 (2007): 2076-2078. Full Text

Sharma, AC, Tourassi, GD, Kapadia, AJ, Harrawood, BP, Bender, JE, Crowell, AS, Kiser, MR, Howell, CR, and Jr, CEF. "Design and construction of a prototype rotation modulation collimator for near-field high-energy spectroscopic gamma imaging." IEEE Nuclear Science Symposium Conference Record 4 (2007): 2021-2024. Full Text

Sharma, AC, Tourassi, GD, Kapadia, AJ, Crowell, AS, Kiser, MR, Hutcheson, A, Harrawood, BP, Howell, CR, and Jr, CEF. "Elemental spectrum of a mouse obtained via neutron stimulation." Progress in Biomedical Optics and Imaging - Proceedings of SPIE 6510.PART 1 (2007). Full Text

Tonchev, AP, Angell, C, Boswell, M, Chyzh, A, Howell, CR, Karwowski, HJ, Kelley, JH, Tornow, W, Tsoneva, N, and Wu, YK. "Study of collective dipole excitations below the giant dipole resonance at HIγS." AIP Conference Proceedings 891 (2007): 339-347. Full Text

Floyd, CE, Bender, JE, Sharma, AC, Kapadia, A, Xia, J, Harrawood, B, Tourassi, GD, Lo, JY, Crowell, A, and Howell, C. "Introduction to neutron stimulated emission computed tomography." Phys Med Biol 51.14 (July 21, 2006): 3375-3390. Full Text

Plaster, B, Semenov, AY, Aghalaryan, A, Crouse, E, MacLachlan, G, Tajima, S, Tireman, W, Ahmidouch, A, Anderson, BD, Arenhövel, H, Asaturyan, R, Baker, OK, Baldwin, AR, Barkhuff, D, Breuer, H, Carlini, R, Christy, E, Churchwell, S, Cole, L, Danagoulian, S, Day, D, Eden, T, Elaasar, M, Ent, R, Farkhondeh, M, Fenker, H, Finn, JM, Gan, L, Gasparian, A, Garrow, K, Gueye, P, Howell, CR, Hu, B, Jones, MK, Kelly, JJ, Keppel, C, Khandaker, M, Kim, W-Y, Kowalski, S, Lung, A, Mack, D, and Madey, R et al. "Measurements of the neutron electric to magnetic form factor ratio GEn/GMn via the H2(e→,e'n→)H1 reaction to Q2=1.45 (GeV/c)2." Physical Review C - Nuclear Physics 73.2 (2006). Full Text

Sabourov, A, Ahmed, MW, Blackston, MA, Crowell, AS, Howell, CR, Perdue, BA, Sabourov, K, Tonchev, A, Weller, HR, Prior, RM, and Spraker, MC. "Astrophysical S factor for the Li7(d,n0)Be8 and Li7(d,n1)Be8 reactions." Physical Review C - Nuclear Physics 73.1 (2006). Full Text

Trotter, DEG, Meneses, FS, Tornow, W, Howell, CR, Chen, Q, Crowell, AS, Roper, CD, Walter, RL, Schmidt, D, Witała, H, Glöckle, W, Tang, H, Zhou, Z, and Šlaus, I. "Neutron-deuteron breakup experiment at En=13MeV: Determination of the 1S0 neutron-neutron scattering length ann." Physical Review C - Nuclear Physics 73.3 (2006). Full Text

Jr, CEF, Bender, JE, Harrawood, B, Sharma, AC, Kapadia, A, Tourassi, GD, Lo, JY, and Howell, C. "Breast cancer diagnosis using neutron stimulated emission computed tomography: Dose and count requirements." Progress in Biomedical Optics and Imaging - Proceedings of SPIE 6142 II (2006). Full Text

Tonchev, AP, Angell, C, Boswell, M, Howell, CR, Karwowski, HJ, Kelley, JH, Tornow, W, and Tsoneva, N. "Low-energy dipole modes of excitation below the neutron separation energy." AIP Conference Proceedings 819 (2006): 350-354. Full Text

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