Calvin R. Howell
Professor of Physics
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.
Stave, S, Ahmed, MW, Antolak, AJ, Blackston, MA, Crowell, AS, Doyle, BL, Henshaw, SS, Howell, CR, Kingsberry, P, Perdue, BA, Rossi, P, Prior, RM, Spraker, MC, and Weller, HR. "Cross section measurements of the B10(d,n0)C11 reaction below 160 keV." Physical Review C - Nuclear Physics 77.5 (2008). Full Text
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
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.
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
Jr, CEF, Sharma, AC, Bender, JE, Kapadia, AJ, Xia, JQ, Harrawood, BP, Tourassi, GD, Lo, JY, Kiser, MR, Crowell, AS, Pedroni, RS, Macri, RA, Tajima, S, and Howell, CR. "Neutron stimulated emission computed tomography: Background corrections." Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 254.2 (2007): 329-336. Full Text
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