Investigations of x ray sensitive PN-CCD's

Details Investigations of x ray sensitive PN-CCD's Investigations of x ray sensitive PN-CCD's

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989tum..rept.....m&link_type=abstract

Thesis - Tech. Univ., Munich Max-Planck-Inst. für Physik und Astrophysik, Garching (Germany, F.R.). Inst. für Extraterrestrische

Astronomy and Astrophysics

Astronomy

Charge Coupled Devices, P-N Junctions, X Ray Spectra, Image Resolution, Transmission Efficiency, X Ray Astronomy, X Ray Imagery

Scientific paper

The modus operandi of PN-CCD's (charge coupled devices) with high detection probability for soft x rays is presented with a view to x ray astronomy. The transfer efficiency of a two dimensional CCD was determined for standard conditions as well as in vacuum at a detector temperature of 135 K using laser flashes. In both cases the efficiency is higher than 0.995 per image cell at a timing pulse rate of 1 MHz and a transported charge of about 80,000 electrons. The separation between the image columns is so effective that a charge loss to neighboring columns was not found. The energy resolution is limited to 3.6 keV by the noise of the applied hybrid preamplifier.

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