An X-ray scanner prototype based on a novel hybrid gaseous detector

Iacobaeus, C.; Francke, T.; Lund-Jensen, B.; Peskov, VLADIMIR

doi:10.1016/j.nima.2006.10.252

An X-ray scanner prototype based on a novel hybrid gaseous detector

Iacobaeus C., Francke T., Lund-Jensen B., Peskov V.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, cilt.573, sa.1-2, ss.61-64, 2007 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 573 Sayı: 1-2
Basım Tarihi: 2007
Doi Numarası: 10.1016/j.nima.2006.10.252
Dergi Adı: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.61-64
Anahtar Kelimeler: mammography, capillary plates, gaseous detector, DIGITAL MAMMOGRAPHY, RADIOGRAPHY
Bursa Uludağ Üniversitesi Adresli: Hayır

Özet

We have developed a prototype of a new type of hybrid X-ray detector. It contains a thin wall (few mu m) edge-illuminated lead glass capillary plate (acting as a converter of X-rays photons to primary electrons) combined with a microgap parallel-plate avalanche chamber operating in various gas mixtures at 1 atm. The operation of these converters was studied in a wide range of X-ray energies (from 6 to 60 keV) at incident angles varying from 0 degrees to 90 degrees. The detection efficiency, depending on the geometry, photon's energy, incident angle and the mode of operation, was between a few and similar to 40%. The position resolution achieved was similar to 50 mu m in digital form and was practically independent of the photon's energy or gas mixture.