Title of article
Comparison of Xe and Kr filled ionization chambers for application in digital scanning radiography
Author/Authors
Babichev، نويسنده , , E.A. and Baru، نويسنده , , S.E. and Groshev، نويسنده , , V.R. and Khabakhpashev، نويسنده , , A.G and Neustroev، نويسنده , , V.A and Papushev، نويسنده , , P.A. and Porosev، نويسنده , , V.V. and Savinov، نويسنده , , G.A. and Shekhtman، نويسنده , , L.I and Ukraintsev، نويسنده , , Yu.G and Yurchenko، نويسنده , , Yu.B، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
4
From page
352
To page
355
Abstract
Low-dose digital radiographic device “Siberia” based on a multistrip ionization chamber was developed in Budker Institute of Nuclear Physics. Originally, the detector was filled with Xe gas under 10 bar pressure, however, the latest study showed that Kr filled detector at 20 bar has higher signal-to-noise ratio (SNR) than Xe one. The main factor affecting SNR is amplitude fluctuation of detected signal. Kr has lower value of K-shell binding energy and less K-shell fluorescence yield than Xe gas. It leads to less distortion of registered X-ray spectra and better energy localization. As a result the detector has better channel shape and higher DQE value.
Keywords
X-ray detector , digital radiography
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2004
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2202853
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