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U.S. Department of Energy
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Wide Band X-Ray Imager (WXI) And Soft Gamma-Ray Detector (SGD) for the NeXT Mission

Technical Report ·
DOI:https://doi.org/10.2172/839862· OSTI ID:839862

The NeXT mission has been proposed to study high-energy non-thermal phenomena in the universe. The high-energy response of the super mirror will enable us to perform the first sensitive imaging observations up to 80 keV. The focal plane detector, which combines a fully depleted X-ray CCD and a pixellated CdTe detector, will provide spectra and images in the wide energy range from 0.5 keV to 80 keV. In the soft gamma-ray band upto {approx} 1 MeV, a narrow field-of-view Compton gamma-ray telescope utilizing several tens of layers of thin Si or CdTe detector will provide precise spectra with much higher sensitivity than present instruments. The continuum sensitivity will reach several x 10{sup -8} photons/s/keV/cm{sup 2} in the hard X-ray region and a few x 10{sup -7} photons/s/keV/cm{sup 2} in the soft {gamma}-ray region.

Research Organization:
Stanford Linear Accelerator Center (SLAC), Menlo Park, CA
Sponsoring Organization:
SC
DOE Contract Number:
AC02-76SF00515
OSTI ID:
839862
Report Number(s):
SLAC-PUB-11142
Country of Publication:
United States
Language:
English