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 ,
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.
