Henry R. Weller

Henry R. Weller

Professor Emeritus of Physics

Office Location: 
Tunl, Durham, NC 27708
Front Office Address: 
Box 90308, Durham, NC 27708-0308
Phone: 
(919) 660-2633

Overview

Dr. Weller's research program at TUNL has been concentrated on using radiative capture reactions induced by polarized beams of protons and deuterons to study nuclear systems. These measurements have permitted him to observe the "D-state" in the 4He nucleus, which arises from the two body tensor force. This result changes the rate of the d+d fusion reaction by almost a factor of 50 at very low energies. This is of great interest in nuclear astrophysics. In the past year, he has focused on studies of (d,n) reactions using very low energy polarized beams. Such studies have not been previously performed. These reactions are of great interest in nuclear astrophysics. Dr. Weller is also working to help develop an intense beam of polarized gamma-rays using the facilities of the Duke Free Electron Laser Laboratory. (Dr. Weller is the Nuclear Physics Program Manager and is in charge of the development of the target room for the HIGS Project at DFELL). This beam will ultimately allow new experimental studies capable of testing fundamental aspects of Quantum Chromodynamics in the low-energy sector, such as the up-to-down quark mass ratio. The experiments at HIGS require very sophisticated targets and detector systems. Dr. Weller is leading the development of these. The first experiments using these setups and the upgraded HIGS facility are expected to begin in the spring of 2008.

Education & Training

  • Ph.D., Duke University 1967

O’Shea, P. G., et al. “Inverse Compton γ-ray source for nuclear physics and related applications.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 375, no. 1–3, June 1996, pp. 530–34. Scopus, doi:10.1016/0168-9002(96)00052-6. Full Text

Laymon, C. M., et al. “Low-energy polarized-proton capture on 6Li.Physical Review. C, Nuclear Physics, vol. 53, no. 4, Apr. 1996, pp. 1977–80. Epmc, doi:10.1103/physrevc.53.1977. Full Text

Godwin, M. A., et al. “Search for p waves in low-energy proton capture reactions relevant to the solar neutrino problem.Physical Review. C, Nuclear Physics, vol. 53, no. 1, Jan. 1996, pp. R1–4. Epmc, doi:10.1103/physrevc.53.r1. Full Text

Schmid, G. J., et al. “T20 measurements for 1H(d.” Physical Review. C, Nuclear Physics, vol. 53, no. 1, Jan. 1996, pp. 35–40. Epmc, doi:10.1103/physrevc.53.35. Full Text

Tilley, D. R., et al. “Energy levels of light nuclei A = 18-19.” Nuclear Physics, Section A, vol. 595, no. 1, Dec. 1995, pp. 1–170. Scopus, doi:10.1016/0375-9474(95)00338-1. Full Text

Weller, H. R., and R. M. Chasteler. “Comment on the7Li(p, γ)8Be reaction at energies of astrophysical interest.” Zeitschrift Für Physik a Hadrons and Nuclei, vol. 352, no. 4, Dec. 1995, pp. 353–54. Scopus, doi:10.1007/BF01299749. Full Text

Parker, W. E., et al. “Fluctuation effects in radiative capture to unstable final states: A test via the 89Y(p.” Physical Review. C, Nuclear Physics, vol. 52, no. 1, July 1995, pp. 252–66. Epmc, doi:10.1103/physrevc.52.252. Full Text

Prior, R. M., et al. “A polarimeter for low-energy protons.” Nuclear Inst. and Methods in Physics Research, A, vol. 355, no. 2–3, Feb. 1995, pp. 439–42. Scopus, doi:10.1016/0168-9002(94)01017-X. Full Text

Schmid, G. J., et al. “Polarized proton capture by deuterium and the H2(p,γ)He3 astrophysical S factor.” Physical Review C, vol. 52, no. 4, Jan. 1995. Scopus, doi:10.1103/PhysRevC.52.R1732. Full Text

Lehman, D. R., et al. “Production of e1 radiation in the h-2(d,gamma)he-4 reaction at very-low energies.” Few Body Systems, vol. 18, no. 2–4, 1995, pp. 147–57.

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