Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008head...10.2810p&link_type=abstract
American Astronomical Society, HEAD meeting #10, #28.10
Astronomy and Astrophysics
Astrophysics
Scientific paper
The Nuclear Compton Telescope (NCT) is a balloon-borne soft gamma-ray (0.2-10 MeV) telescope designed to study astrophysical sources of nuclear line emission and polarization. It consists of twelve high spectral resolution 3D Germanium Detectors that track gamma-ray Compton scatter interactions. Tracking technologies provide dramatic improvements in Compton efficiency and sensitivity: with less than 1% of the detector volume of COMPTEL, NCT achieves a similar effective area. NCT is breaking new ground in the measurement of polarized gamma-ray emission from astrophysical sources, while simultaneously providing a testing platform for novel event analysis, background reduction, and imaging techniques for modern Compton telescopes. NCT is currently being prepared for a 36-hour flight from New Mexico in September 2008, followed by a long duration flight from Australia in December 2009. On these science flights, NCT will map the galactic positron annihilation, Al-26, and Fe-60 emission, and perform a discovery study of polarization from all classes of gamma-ray sources. We will present an overview of the NCT instrument and the planned flight program.
Boggs Steven E.
Liu Zhiyi
NCT Collaboration
Perez-Becker Daniel A.
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