3D position sensing on UltraPeRL CdZnTe detectors

Donmez B., KIM J., HE Z.

IEEE Nuclear Science Symposium/Medical Imaging Conference, Hawaii, Amerika Birleşik Devletleri, 26 Ekim - 03 Kasım 2007, ss.420-423, (Tam Metin Bildiri) identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/nssmic.2007.4436361
  • Basıldığı Şehir: Hawaii
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.420-423
  • Akdeniz Üniversitesi Adresli: Hayır

Özet

Experimental results of depth and lateral position sensing on UltraPeRL pixellated CdZnTe detectors using signal ratios are presented. Each detector employs one CdZnTe crystal of 20mm x 20mm x 5mm with 8 x 8 pixel electrodes fabricated on the anode surface. The anode pixel pitch is 2.4 mm. The signal ratios are calculated using the signals induced on the collecting pixel and the eight neighboring pixels. The signal on each collecting pixel is then corrected for depth of interaction using the signal ratios. We obtained 7.6%, 4.2% and 2.5% FWHM energy resolution at 122 keV, 356 keV and 662 keV, respectively.