Annihilation Fountan Images
Recent Papers and Presentations
Related Web Links
||The following is not a complete list of Branch projects.
The Home Page for each section listed above
contains (or will contain) information on all projects undertaken by that
The Oriented Scintillation Spectrometer Experiment (OSSE) undertakes a
broad observational program of astronomical sources for gamma radiation
in the 50 keV to 10 MeV energy range. These observations are pursued to
understand the fundamental physical processes which occur in these most
energetic objects in the universe. These include energetic solar flare
activity which has deleterious effects on communication and navigation
systems, high energy processes occurring in compact sources in our galaxy
such as pulsars, neutron stars, and black holes, explosive phenomena such
as supernovae, novae, and gamma ray bursts, and the central regions of
active galactic nuclei, which are the most energetic sources in the universe.
Solar Maximum Mission (SMM) (7652)
NRL's Heavy Ions in Space (HIIS) experiment is one of the largest cosmic
ray experiments flown in space. HIIS was exposed in space for nearly six
years (from 7 April 1984 until 12 January 1990) aboard NASA's Long Duration
Exposure Facility (LDEF) in a 28.5 degree orbit at a mean altitude of 476
km. HIIS used large, thick stacks of plastic track detectors to record
the passage of cosmic-ray nuclei. HIIS's large geometry factor (2.0 m^2-sr)
and its extended space exposure enabled HIIS to study rare energetic particles
of Galactic, solar, and magnetospheric origin.
Gamma-ray Large Area Space Telescope (GLAST)
Technologies for the next generation of gamma ray instruments are now
under development. Our activities include testing of germanium strip
detectors, position sensitive photomultiplier tubes, and custom CMOS electronics
for applications in space, DoD, DOE, and medicine.