Calvin R. Howell

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

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

Muzichka, AY, Furman, WI, Lychagin, EV, Krylov, AR, Nekhaev, GV, Sharapov, EI, Shvetsov, VN, Strelkov, AV, Levakov, BG, Lyzhin, AE, Chernukhin, YI, Kandiev, YZ, Howell, CR, Mitchell, GE, Crawford, BE, Stephenson, SL, and Tornow, W. "Background determination for the neutron-neutron scattering experiment at the reactor YAGUAR." Nuclear Physics A 789.1-4 (2007): 30-45. Full Text

Hutcheson, A, Angell, CT, Becker, JA, Boswell, M, Crowell, AS, Dashdorj, D, Fallin, B, Fotiades, N, Howell, CR, Karwowski, HJ, Kelley, JH, Kiser, M, Macri, RA, Nelson, RO, Pedroni, RS, Tonchev, AP, Tornow, W, Vieira, DJ, Weisel, GJ, and Wilhelmy, JB. "Pulsed and monoenergetic beams for neutron cross-section measurements using activation and scattering techniques at Triangle Universities Nuclear Laboratory." Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 261.1-2 SPEC. ISS. (2007): 369-372. 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

MacLachlan, G, Aghalaryan, A, Ahmidouch, A, Anderson, BD, Asaturyan, R, Baker, O, Baldwin, AR, Barkhuff, D, Breuer, H, Carlini, R, Christy, E, Churchwell, S, Cole, L, Crouse, E, Danagoulian, S, Day, D, Eden, T, Elaasar, M, Ent, R, Farkhondeh, M, Fenker, H, Finn, JM, Gan, L, Garrow, K, Gueye, P, Howell, CR, Hu, B, Jones, MK, Kelly, JJ, Keppel, C, Khandaker, M, Kim, W-Y, Kowalski, S, Lai, A, Lung, A, Mack, D, Madey, R, Manley, DM, Markowitz, P, Mitchell, J, Mkrtchyan, H, Opper, AK, and Plaster, B et al. "The ratio of proton electromagnetic form factors via recoil polarimetry at Q2 = 1.13 (GeV/c)2." Nuclear Physics A 764.1-4 (2006): 261-273. Full Text