Charge diffusion measurement in fully depleted CCD using X-rays

0387619 - FZÚ 2013 RIV NL eng J - Journal Article
Kotov, I.V. - Frank, J. - Kotov, A.I. - Kubánek, Petr - O´Connor, P. - Radeka, V. - Takacs, P.
Charge diffusion measurement in fully depleted CCD using X-rays.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 695, Dec (2012), s. 296-297. ISSN 0168-9002. E-ISSN 1872-9576
Institutional research plan: CEZ:AV0Z10100502
Keywords : CCD * charge diffusion * CCD X-ray detectors
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 1.142, year: 2012

Tight requirements on the Large Synoptic Survey Telescope point spread function (PSF) demand sensor contribution to PSF be both small and well characterized. The sensor PSF is determined by the lateral charge diffusion on the drift path from the CCD window to the gates. Different techniques for charge diffusion characterization have been developed, each with its own systematics and measurement difficulties. A new way to measure charge diffusion using an X-ray source is presented. We demonstrate the effectiveness and limitations of our technique.
Permanent Link: http://hdl.handle.net/11104/0216631