부산대학교 도서관

We are currently designing a small animal PET insert for use in an MRI with a bore size that constrains the insert inner diameter to be no larger than 66 mm while leaving 25 mm for ring thickness. The insert will be made from 10 mm thick DOI-capable Dual Layer Offset LYSO blocks coupled to MR-compatible SiPMs. The block is made from a 9 $\times$ 9 array of $1.345\times 1.345\times 4\ {\rm mm}^{3}$ crystals in the front layer and a 10 $\times$ 10 array of $1.345\times 1.345\times 6\ {\rm mm}^{3}$ crystals in the back layer $({\rm crystal}\ {\rm pitch}=1.422\ {\rm mm})$. A ring of blocks is made by repeating a block around a ring with inner diameter of 64.776 mm 16 times.