Calvin R. Howell, Professor  

Calvin R. Howell

Office Location: 221 Dfell, Durham, NC 27708
Office Phone: (919) 660-2632
Email Address: howell@tunl.duke.edu
Web Page: http://www.tunl.duke.edu/Directory/Faculty/howell/

Specialties:
Experimental nuclear physics
Biological physics

Education:
Ph.D., Duke University, 1984
Master of Art, Duke University, 1980
Bachelor of Science, Davidson College, 1978

Research Categories: Experimental Nuclear Physics

Current projects: Measurement of the cross section for neutron-neutron quasi-free scattering , in neutron deuteron break; Determination of the s-wave neutron-neutron, scattering length using photodisintegration of the triton; Nuclear structure, studies of nuclei used in the search for neutrinoless double beta decay;, Nuclear reaction measurements important for nuclear security and , homeland security; and Carbon and nitrogen accumulation , and translocation in plants.

Research Description:

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 3He and the triton, and studies of the carbon and nitrogen accumulation and translocation in plants using short-lived radioactive isotopes and positron emission tomography.

Areas of Interest:
experimental nuclear physics
few-nucleon reactions
nuclear astrophysics
nuclear structure
ecology and plant physiology
material analysis and imaging with gamma-rays and neutrons

Teaching (Fall 2017):

  • Physics 142l.001, General physics ii Synopsis
    Physics 130, TuTh 11:45 AM-01:00 PM
  • Physics 142l9.03, General physics ii (lab) Synopsis
    Physics 147, M 06:00 PM-08:00 PM
  • Physics 142l9d.01, General physics ii (disc) Synopsis
    Physics 298, W 10:05 AM-12:05 PM
  • Physics 142l9d.02, General physics ii (disc) Synopsis
    Physics 047, M 03:30 PM-05:30 PM
  • Physics 142l9d.03, General physics ii (disc) Synopsis
    Physics 047, W 03:30 PM-05:30 PM

Recent Publications   (More Publications)

  1. Krishichayan, ; Bhike, M; Finch, SW; Howell, CR; Tonchev, AP; Tornow, W, Photofission cross-section ratio measurement of 235 U/ 238 U using monoenergetic photons in the energy range of 9.0–16.6 MeV, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 854 (May, 2017), pp. 40-44 [doi] .
  2. Carlson, J; Carpenter, MP; Casten, R; Elster, C; Fallon, P; Gade, A; Gross, C; Hagen, G; Hayes, AC; Higinbotham, DW; Howell, CR; Horowitz, CJ; Jones, KL; Kondev, FG; Lapi, S; Macchiavelli, A; McCutchen, EA; Natowitz, J; Nazarewicz, W; Papenbrock, T; Reddy, S; Riley, MA; Savage, MJ; Savard, G; Sherrill, BM; Sobotka, LG; Stoyer, MA; Betty Tsang, M; Vetter, K; Wiedenhoever, I; Wuosmaa, AH; Yennello, S, White paper on nuclear astrophysics and low-energy nuclear physics, Part 2: Low-energy nuclear physics, Progress in Particle and Nuclear Physics, vol. 94 (May, 2017), pp. 68-124 [doi] .
  3. Gooden, ME; Arnold, CW; Becker, JA; Bhatia, C; Bhike, M; Bond, EM; Bredeweg, TA; Fallin, B; Fowler, MM; Howell, CR; Kelley, JH; Krishichayan, ; Macri, R; Rusev, G; Ryan, C; Sheets, SA; Stoyer, MA; Tonchev, AP; Tornow, W; Vieira, DJ; Wilhelmy, JB, Energy Dependence of Fission Product Yields from 235U, 238U and 239Pu for Incident Neutron Energies Between 0.5 and 14.8 MeV, Nuclear Data Sheets, vol. 131 (January, 2016), pp. 319-356 [doi] .
  4. Han, Z; Friesen, FQL; Howell, CR; Ahmed, MW; Crowe, BJ; Crowell, AS; Cumberbatch, LC; Fallin, B; Ticehurst, D; Tornow, W; Witała, H, Monte-Carlo Simulation of 3 H( γ , pn ) n and 3 He( γ , pp ) n Experiments at HI γ S, edited by Elster, C; Phillips, DR; Roberts, CD, EPJ Web of Conferences, vol. 113 (2016), pp. 08009-08009 [doi] .
  5. Malone, RC; Crowe, B; Crowell, AS; Cumberbatch, LC; Esterline, JH; Fallin, BA; Friesen, FQL; Han, Z; Howell, CR; Markoff, D; Ticehurst, D; Tornow, W; Witała, H, Neutron-neutron quasifree scattering in nd breakup at 10 MeV, edited by Elster, C; Phillips, DR; Roberts, CD, EPJ Web of Conferences, vol. 113 (2016), pp. 04010-04010 [doi] .

Curriculum Vitae

Highlight:

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.

Current Ph.D. Students   (Former Students)

Postdocs Mentored

  • Robert A. Macri (March 01, 2004 - September 30, 2004)  
  • Shigeyuki Tajima (January 1, 2004 - August 31, 2004)  
  • Alexander S. Crowell (January 1, 2002 - December 31, 2007)  
  • Steve Churchwell (1998/01-2001/08)