Performance of a low-noise CCD camera adapted to a transmission electron microscope
1992; Elsevier BV; Volume: 46; Issue: 1-4 Linguagem: Inglês
10.1016/0304-3991(92)90026-g
ISSN1879-2723
Autores Tópico(s)Photoacoustic and Ultrasonic Imaging
ResumoCharge-coupled device (CCD) technology is now widely used to record electron-optical images. In order to optimize the transfer of an image to the CCD sensor the properties of the transmission screen (efficiency, pulse height distribution, point-spread function) and the light-optical transfer by fiber optics must be taken into consideration. We discuss the performance of a low-noise CCD camera (Photometrics PM512) which can detect single electron signals. The electron density distribution in the final plane of the transmission electron microscope is converted by a P20 or a YAG single-crystal scintillator and transferred via a 1:1 fiber optic or a 2:1 fiber-optic reduser to the CCD sensor.
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