Calvin R. Howell

Professor of Physics

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


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

Tonchev, AP, Angell, CT, Boswell, M, Crowell, AS, Fallin, B, Hammond, S, Howell, CR, Hutcheson, A, Karwowski, HJ, Kelley, JH, Pedroni, RS, Tornow, W, Becker, JA, Dashdorj, D, Kenneally, J, MacRi, RA, Stoyer, MA, Wu, CY, Bond, E, Chadwick, MB, Fitzpatrick, J, Kawano, T, Rundberg, RS, Slemmons, A, Vieira, DJ, and Wilhelmy, JB. "Measurement of the Am241(n,2n) reaction cross section from 7.6 MeV to 14.5 MeV." Physical Review C - Nuclear Physics 77.5 (2008). Full Text

Braun, RT, Tornow, W, Howell, CR, Trotter, DEG, Roper, CD, Salinas, F, Setze, HR, Walter, RL, and Weisel, GJ. "Neutron-proton analyzing power at 12 MeV and inconsistencies in parametrizations of nucleon-nucleon data." Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 660.3 (2008): 161-166. Full Text

Chen, Q, Howell, CR, Carman, TS, Gibbs, WR, Gibson, BF, Hussein, A, Kiser, MR, Mertens, G, Moore, CF, Morris, C, Obst, A, Pasyuk, E, Roper, CD, Salinas, F, Setze, HR, Slaus, I, Sterbenz, S, Tornow, W, Walter, RL, Whiteley, CR, and Whitton, M. "Measurement of the neutron-neutron scattering length using the π-d capture reaction." Physical Review C - Nuclear Physics 77.5 (2008). Full Text

Kapadia, AJ, Sharma, AC, Tourassi, GD, Bender, JE, Howell, CR, Crowell, AS, Kiser, MR, Harrawood, BP, Pedroni, RS, and Jr, CEF. "Neutron stimulated emission computed tomography for diagnosis of breast cancer." IEEE Transactions on Nuclear Science 55.1 (2008): 501-509. Full Text

Kiser, MR, Reid, CD, Crowell, AS, Phillips, RP, and Howell, CR. "Exploring the transport of plant metabolites using positron emitting radiotracers." HFSP Journal 2.4 (2008): 189-204. Full Text

Elhami, E, Orce, JN, Scheck, M, Mukhopadhyay, S, Choudry, SN, McEllistrem, MT, Yates, SW, Angell, C, Boswell, M, Fallin, B, Howell, CR, Hutcheson, A, Karwowski, HJ, Kelley, JH, Parpottas, Y, Tonchev, AP, and Tornow, W. "Experimental study of the low-lying structure of Zr94 with the (n,n'γ) reaction." Physical Review C - Nuclear Physics 78.6 (2008). Full Text

Howell, CR. "Extracting the neutron-neutron scattering length from neutron-deuteron breakup." Chiral Dynamics 2006 - Proceedings of the 5th International Workshop on Chiral Dynamics, Theory and Experiment, CD 2006 (December 1, 2007): 344-345.

Danagoulian, A, Mamyan, VH, Roedelbronn, M, Aniol, KA, Annand, JRM, Bertin, PY, Bimbot, L, Bosted, P, Calarco, JR, Camsonne, A, Chang, CC, Chang, T-H, Chen, J-P, Choi, S, Chudakov, E, Degtyarenko, P, Jager, CWD, Deur, A, Dutta, D, Egiyan, K, Gao, H, Garibaldi, F, Gayou, O, Gilman, R, Glamazdin, A, Glashausser, C, Gomez, J, Hamilton, DJ, Hansen, J-O, Hayes, D, Higinbotham, DW, Hinton, W, Horn, T, Howell, C, Hunyady, T, Hyde, CE, Jiang, X, Jones, MK, Khandaker, M, Ketikyan, A, and Kubarovsky, V et al. "Compton-scattering cross section on the proton at high momentum transfer." Physical Review Letters 98.15 (2007). Full Text

Anderson, B, Auberbach, L, Averett, T, Bertozzi, W, Black, T, Calarco, J, Cardman, L, Cates, GD, Chai, ZW, Chen, JP, Choi, S, Chudakov, E, Churchwell, S, Corrado, GS, Crawford, C, Dale, D, Deur, A, Djawotho, P, Dutta, D, Finn, JM, Gao, H, Gilman, R, Glamazdin, AV, Glashausser, C, Glöckle, W, Golak, J, Gomez, J, Gorbenko, VG, Hansen, J-O, Hersman, FW, Higinbotham, DW, Holmes, R, Howell, CR, Hughes, E, Humensky, B, Incerti, S, Jager, CWD, Jensen, JS, Jiang, X, Jones, CE, Jones, M, and Kahl, R et al. "Extraction of the neutron magnetic form factor from quasielastic 3He→(e→,e') at Q2=0.1-0.6 (GeV/c)2." Physical Review C - Nuclear Physics 75.3 (2007). Full Text

Sharma, AC, Tourassi, GD, Kapadia, AJ, Harrawood, BP, Bender, JE, Crowell, AS, Kiser, MR, Howell, CR, and Jr, CEF. "Design and development of a high-energy gamma camera for use with NSECT imaging: Feasibility for breast imaging." IEEE Transactions on Nuclear Science 54.5 (2007): 1498-1505. Full Text