Speaker
Description
Thallium-doped CsI scintillators are well-regarded for their high light output (~64,000 photons/MeV), relatively fast decay time, and responsiveness to various types of radiation, making them strong candidates for applications in medical imaging, security scanning, high-energy physics, and other radiation detection fields. However, a limitation of CsI(Tl) is its long afterglow, which reduces effectiveness in fast radiographic and radionuclide imaging. This afterglow can lead to pulse pileup in high count-rate situations, diminished energy resolution in nuclear imaging, and artifacts in computed tomography. This study aims to reduce the afterglow effect in CsI(Tl) crystals by introducing Europium as a codopant. We present findings from characterizing and evaluating CsI(Tl, Eu) for energy resolution, threshold, trigger efficiency, and afterglow time range in this symposium.
| Field of contribution | Experiment |
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