PETTime-of-flightCherenkov radiationSilicon photomultipliersLead fluorideAs previously demonstrated, an excellent timing resolution below 100ps FWHM is possible in time-of-flight positron emission tomography (TOF PET) if the detection method is based on the principle of detecting photons of Cherenkov ...
现有商业系统能够达到200ps的FWHM的重合时间分辨率(CTR),结合TOF(飞行时间)的图像重构,能够使图像PET图像的信噪比和灵敏度进一步提升。尽管如此,为了在低剂量放射性的儿科护理和神经退行性的疾病诸如阿兹海默中使用PET系统进行检测,未来的PET系统需要特别高的灵敏度因此也需要特别高的时间分辨率。这些目标可以通过提高时间分...
PET-CARD READER-WRITERS,PRESS REDUCER BOBBIN,驱动器,AC INDUCT MOTOR,HIGH-PRECISION GEARS,DEFROST TIMER,马达,INSULATOR,THIN-WALL-MOLDED PRODUCTS,DVD/BD TURNTABLE,LENS RING FRAME,FISH-EYE LENSES,ICE MAKER,REFRIGERANT VALVE,MUSIC BOX,烧结触点,STEPPING MOTORS,同步定时马达,DELIVERY PIPE,线性编码器,IMAGE...
We describe the studies for a possible development of a ToF-PET based on Micro Pattern Gas Detector (MPGD). This kind of detector has a very good spatial and time resolution (order of 100μm and few ns, respectively) and very low price, making it suitable for a full-body scanner. ...
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State-of-the-art TOF-PET scanners operate at a coincidence resolving time (CRT) of the order of 300–400 ps [5], [6]. More recent theoretical and experimental studies using small 2×2×3 mm 3 LSO and LaBr3:Ce crystals indicate that the CRT limit is expected at about 100 ps [7],...
Time of flight (TOF) measurements in positron emission tomography (PET) are very challenging in terms of timing performance, and should ideally achieve less than 100 ps FWHM precision. We present a time-based differential technique to read out silicon photomultipliers (SiPMs) which has less than ...
Scatter correction is essential for quantitative and accurate time-of-flight (TOF) PET imaging. It is implemented by an accurate scatter estimation algorithm, to calculate the statistical distribution of scattered photons among the measured coincidences. However, to our knowledge, scatter estimation algor...
The system timing performance is also related to the electronic combination.%设计和构建了用于In-Beam TOF-PET时间校正的定时系统.该系统是由1对BaF2(∮40 mm ×45 mm)晶体耦合到光电倍增管XP2020Q和标准核电子学插件构成.经测试,系统对511 keV Y射线测量的最佳符合时间分辨达576 ps.对光电倍增管、信号读取...
本发明涉及用于具有作用深度(DOI)编码以实现高的空间、能量和计时分辨率的飞行时间(ToF)正电子发射断层摄影(PET)的几种晶体布置。此外,提出了具有相关测量的ToF-DOI PET探测器阵列的几种实施方式,所有测量都表明,在针对数字硅光倍增管(dSiPM)的第一光子触发所用的设置中,未见到计时劣化。 法律状态 序号法律状态公...