HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.
Apollo 15 and 16 were launched on 26 July 1971 and 16 April 1972,
respectively. Splashdowns were 7 August 1971 and 27 April 1972. Both
released sub-satellites while in orbit around the Moon to do studies on
lunar gravity and magnetic fields. Apollo 16 astronauts John Young and
Charles Duke deployed a UV electrographic camera/spectrograph on the
lunar surface. The instrument observed the Sun, the Earth's geocorona
and various astronomical objects. Both Apollo 15 & 16 Command Service
Modules carried gamma-ray spectrometers. These spectrometers studied
the Moon and the gamma-ray background.
Apollo 15 and 16 carried a 512-channel cylindrical NaI(Tl) scintillation
gamma-ray spectrometer, 76x76 mm in size, covered with a plastic
scintillator for charged particle rejection. The instrument covered the energy
range 0.55-8.6 MeV. The resolution of the spectrometer was about 8%.The
sensor was mounted on a 7.6 m long boom.
Primarily intended to study the Moon's radioactivity, it made measurements
of the cosmic gamma-ray background during its trip. A flux density of
~1x104
quanta/sq-m/s was observed.
HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.
