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

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

Mikhailov, SF, Busch, MD, Emamian, M, Hartman, SM, Kim, Y, Li, J, Popov, VG, Swift, G, Wallace, PW, Wang, P, Wu, YK, Howell, CR, Gavrilov, NG, Kurkin, GY, Matveev, Y, Anchugov, OV, Shvedov, DA, and Vinokurov, NA. "Commissioning of the booster injector synchrotron for the HIGS facility at Duke University." Proceedings of the IEEE Particle Accelerator Conference (2007): 1209-1211. Full Text

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