Correlation of Upper-Atmospheric 7 Be with Solar Energetic Particle Events (2007)
G. W. Phillips, G. H. Share, S. E. King, R. A. August, A. J. Tylka, J. H. Adams, ...
Abstract. A surprisingly large concentration of radioactive 7 Be was observed in the upper atmosphere at altitudes above 320 km on the LDEF satellite that was recovered in January 1990. We report on...
Emfietzoglou, D., Papamichael, G., Karava, K., Androulidakis, I., Kostarelos, K., Pathak, A., ...
In an effort to understand the basic mechanism of the action of charged particles in solid radiation dosimeters, we extend our Monte-Carlo code (MC4) to condensed media (liquids/solids) and present...
Emfietzoglou, D., Papamichael, G., Karava, K., Androulidakis, I., Pathak, A., Phillips, G. W., ...
In an effort to understand the basic mechanism of the action of charged particles in solid radiation dosimeters, we extend our Monte-Carlo code (MC4) to condensed media (liquids/solids) and present...
Program PREGA was developed at NRL to perform a fast and efficient regression analysis of a gamma ray spectrum from an unknown source, taken with a NaI(T1) detector. The analysis determines the best...
A High Efficiency Fast Neutron Detector. (1998)
August, R. A., Phillips, G. W., Cutchin, J. H.
This report researches a concept for a high efficiency detector of fast neutrons (several MeV), using solid state charged particle detectors overlaid with thick disks (about mm) of 238U. Experiments...
PHillips, G. W., King, S. E., August, R. A., Ritter, J. C., Cutchin, J. H.
We observed strong 7Be activity on the surface of the Long Duration Exposure Facility (LDEF) during the first complete gamma-ray survey of a large spacecraft after its return to earth. This is the...
Phillips, G. W., August, R. A., King, S. E., Young, D. K., Bennett, R. H.
This progress report covers field work and laboratory analysis efforts for quantifying the environmental threat of radioactive waste released in the Arctic seas adjacent to the former Soviet Union...
Gupta, S, Barter, S, Phillips, G W, Gibson, R N, Hodgson, H J
Ultrasonography, computed tomography and 99mTc liver scanning are all useful in diagnosis of patients with the Budd-Chiari syndrome. In a study to determine their comparative value characteristic...