Author/Authors :
Groshev، نويسنده , , V.R. and Kozak، نويسنده , , V.R. and Nifontov، نويسنده , , V.I. and Pishenuok، نويسنده , , S.M. and Samsonov، نويسنده , , A.A. and Shekhtman، نويسنده , , L.I. and Telnov، نويسنده , , V.I.، نويسنده ,
Abstract :
For viewing micro-calcifications smaller than 100 μm investigation of image formation in mammography shows that a significant dose to the patient is imperative. We propose a novel one-dimensional Multi-electrode Ionisation Chamber (MIC), with high spatial resolution, and lowered doses. In this work, first results from a prototype are presented. High spatial resolution is demonstrated working with Xe mixture at high pressure. An addition of a Gas Electron Multiplier (GEM) allowed an improvement in sensitivity up to almost single-photon level.
