MDAPET Camera Specifications
Detector Block | |
|---|---|
Scintillator | BGO |
Dimensions (LxWxH) | 19 x 18.5 x 15 mm |
Number of Crystals | 7 x 7=49 |
In-plane crystal pitch | 2.66 mm |
Axial crystal pitch | 2.8 mm |
Detector Module | |
|---|---|
Detector dimensions (LxWxH) | 155 x 38.5 x 15 mm |
Module dimensions | 330 x 185 x 90 mm |
Number of Blocks | 2 rows of 8 = 16 blocks |
Photomultiplier type | Philips XP1911 (19 mm) |
Number of Photomultipliers | 3 rows of 9 = 27 PMT |
Number of crystals | 784 |
Whole System | |
|---|---|
Detector rings | 14 |
Crystals per ring | 448 |
Detector crystals | 6,272 |
Modules | 8 |
Photomultipliers | 216 |
Patient opening diameter
| 32 cm -- brain/breast mode |
36.6, 41.2, 45.8, 50.4 cm | |
55 cm -- whole-body mode | |
Detector ring diameter (octagon)
| 44 cm -- brain/breast mode |
48.6, 53.2, 57.8, 62.4 cm | |
67 cm -- whole-body mode | |
Axial field of view | 4.0 cm |
Septa | No septa between rings |
Transaxial rotation | 45 degree span, 1 degree typical step |
Energy threshold
| 323 KeV center crystal |
344 KeV corner crystal | |
Timing window | 20 ns |
Data collection | 3D, step and shut |
Image planes | 27 |
Gantry tilt angle
| 0 degree breast mode (patient prone) |
90 degree -- whole-body/animal/brain | |