Digitale Medien
s.l. ; Stafa-Zurich, Switzerland
Solid state phenomena
Vol. 113 (June 2006), p. 453-458
ISSN:
1662-9779
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Physik
Notizen:
Hybrid pixel sensors (detectors) have shown to be a valid alternative to other types of Xrayimaging devices due to their high sensitivity, linear behavior and wide dynamic range, and lownoise. One important feature of these devices is the fact that detectors and readout electronics aremanufactured separately. The charge created by the interaction of X-ray photons in the sensor isvery small and has to be amplified in a low-noise circuit before any further signal processing. Thesignal induced on the electrodes of the sensor is transferred to the readout chip, where it isintegrated in a charge sensitive amplifier. The issue reviews on physical principles of operation anddesign of the hybrid pixel sensors developed on the basis of the silicon CMOS and GaAs MESFETtechnologies.The authors have designed GaAs charge sensitive amplifiers for hybrid pixel detectorsand show the results of a simulation
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/22/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.113.453.pdf
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