Fast Timing Bi-Directional CCD for Use in Gamma-Ray Astronomy

Details Fast Timing Bi-Directional CCD for Use in Gamma-Ray Astronomy Fast Timing Bi-Directional CCD for Use in Gamma-Ray Astronomy

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aps..aprb16006a&link_type=abstract

American Physical Society, April Meeting, April 29-May 2, 2000 Long Beach, CA, abstract #B16.006

Astronomy and Astrophysics

Astronomy

Scientific paper

A CCD coupled with a pixellated inorganic scintillator (such as segmented CsI) can provide high position resolution ( ~300 μm). However, standard CCDs are integrating devices typically operating no faster than video rates. For a balloon-borne γ-ray telescope capable of measuring the energy of individual photons, the CCD must have a time resolution better than the average time interval between cosmic ray hits on the veto shield ( ~10 kHz). A Fast Timing Bi-Directional CCD has better than 10 μs time resolution and 50 μm position resolution. We describe the CCD readout architecture, the ASIC readout design, the present status of the development, and the application to a γ-ray astronomy telescope suitable for a 100-day Ultra Long Duration Balloon mission.

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