Author/Authors :
Wang، نويسنده , , Yingjie and Zhang، نويسنده , , Zhiming and Li، نويسنده , , Daowu and Wang، نويسنده , , Baoyi and Shuai، نويسنده , , Lei and Feng، نويسنده , , Baotong and Chai، نويسنده , , Pei and Liu، نويسنده , , Shuangquan and Tang، نويسنده , , Haohui and Li، نويسنده , , Ting and Liao، نويسنده , , Yanfei and Huang، نويسنده , , Xianchao and Chen، نويسنده , , Yan and Liu، نويسنده , , Yantao and Zhang، نويسنده , , Yiwen and Wei، نويسنده , , Long، نويسنده ,
Abstract :
A PET module that comprises a pair of compact, high-resolution and large-area detectors based on silicon photomultipliers (SiPM) was developed and evaluated. The detectorʹs effective area was 24 mm×24 mm. LYSO crystals measuring 1.9 mm×1.9 mm×10 mm and charge division circuit were employed to obtain high spatial resolution with relatively concise Front-end electronics (FEE). Initial results showed the detector to be compatible with 1.5 T magnetic fields. The systemʹs intrinsic FWHM spatial resolution is 1.50 mm. The average energy resolution is 18.5% and the coincidence timing resolution is 2.6 ns.
Keywords :
LYSO , Charge division circuit , SiPM , PET/MR
