Improved coordinate reconstruction for SiPM based gamma detector with pixelated scintillating crystal and multiplexed readout

Poladyan, Harutyun; Bubon, Oleksandr; Senchurov, Sergii; Teymurazyan, A.; Reznik, A.

doi:10.1109/nssmic.2018.8824315

Cited by 2 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ascenzo et al [ 35 ] built a proton therapy monitoring system based on PET that utilized plug and imaging (P&I) technology. Poladyan et al [ 36 ] developed a small-scale PET system and used the truncated center of gravity (TCoG) and raised to the power (RTP) methods for reconstruction of the flood histogram. Du et al [ 37 ] developed a proof-of-concept detector module, which contained nine detector submodules, by utilizing the shared-photodetector readout method.…”

Section: Introductionmentioning

confidence: 99%

Design and Evaluation of LYSO/SiPM LIGHTENING PET Detector with DTI Sampling Method

Deng

Chen

2020

Sensors

View full text Add to dashboard Cite

Positron emission tomography (PET) has a wide range of applications in the treatment and prevention of major diseases owing to its high sensitivity and excellent resolution. However, there is still much room for optimization in the readout circuit and fast pulse sampling to further improve the performance of the PET scanner. In this work, a LIGHTENING® PET detector using a 13 × 13 lutetium-yttrium oxyorthosilicate (LYSO) crystal array read out by a 6 × 6 silicon photomultiplier (SiPM) array was developed. A novel sampling method, referred to as the dual time interval (DTI) method, is therefore proposed to realize digital acquisition of fast scintillation pulse. A semi-cut light guide was designed, which greatly improves the resolution of the edge region of the crystal array. The obtained flood histogram shown that all the 13 × 13 crystal pixels can be clearly discriminated. The optimum operating conditions for the detector were obtained by comparing the flood histogram quality under different experimental conditions. An average energy resolution (FWHM) of 14.3% and coincidence timing resolution (FWHM) of 972 ps were measured. The experimental results demonstrated that the LIGHTENING® PET detector achieves extremely high resolution which is suitable for the development of a high performance time-of-flight PET scanner.

show abstract

Section: Introductionmentioning

confidence: 99%