Application of a charge-coupled device as an x-ray polarimeter

Details Application of a charge-coupled device as an x-ray polarimeter Application of a charge-coupled device as an x-ray polarimeter

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2010..201t&link_type=abstract

Proc. SPIE Vol. 2010, p. 201-210, X-Ray and Ultraviolet Polarimetry, Silvano Fineschi; Ed.

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Scientific paper

We report here the results of polarized X-ray detection with a charge-coupled device (CCD). The photoelectron produced in the CCD is mainly ejected along the electric vector of the incident X-ray. This means that the primary charge cloud mainly remains in the depletion layer if the photo absorption occurs in it. Therefore, a primary charge cloud is elongated towards the X-ray polarization vector. The range of the electron in the silicon is roughly expressed (E/10 keV)(superscript 1.75) micrometers where E is the electron energy in KeV. Therefore, the range of the photoelectron in this energy region is at most two-pixel length. We investigated the relation between the direction of the linear polarization of X-rays and the statistics of the charge cloud shape.

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