Performance results of a new DOI detector block for a high resolution PET-LSO research tomograph HRRT

Spatial resolution limits for the isotropic-3D PET detector X’tal cube

“…1(b)). Many types of DOI detectors have been developed with the concept of extension of 2D detectors based on segmented crystals [3][4][5][6][7][8][9]. To eliminate the parallax error completely, the DOI resolution needs to be the same as the width of the segmented scintillator crystals.…”

Advances in time-of-flight PET

“…LSO was first used in a small animal PET scanner (MicroPET) [17] and subsequently incorporated into a brain scanner [18,19] and finally a whole-body PET scanner (ECAT Accel) [20]. The improved properties of LSO provided higher sensitivity, improved spatial resolution, reduced deadtime and random coincidences, and also helped facilitate the use of fully-3D PET (no septa) as the standard design for modern PET systems [21].…”

A dual layer DOI GSO block detector for a small animal PET

“…Measuring the depth-of-interaction (DOI) information of the gamma photon in the detectors can reduce this spatial resolution degradation of the PET images and, to this end, several DOI detectors have been reported by several groups and by the author [1][2][3][4][5][6]. There are two types of DOI detectors for positron emission tomography (PET): one uses the Auger principle [1][2][3] while the other uses pulse shape analysis for DOI determination [4][5][6]. In the DOI detectors which use pulse shape analysis, different scintillator combinations are usually selected.…”