Abstract
Dedicated MicroCT systems for noninvasive screening of small animals are now in routine use. However, speed of operation limits their use for functional studies. At RMD we are addressing this need by developing a digital x-ray detector that can simultaneously provide high speed, high sensitivity, and a large active imaging area. The system consists of a special high speed CCD detector optically coupled to a scintillator. In its current configuration, the system provides 5 × 5 cm 2 active area, spatial resolution of ∼ 100 μm, and can operate at speeds of up to 225 frames per second. The system has been used to acquire volumetric CT data with 360 projections in ∼12 seconds compared to several minutes needed for most commercial systems. This paper presents design of various system components and performance characterization along with the CT reconstruction data on a mouse phantom.
| Original language | English |
|---|---|
| Article number | M5-434 |
| Pages (from-to) | 3229-3233 |
| Number of pages | 5 |
| Journal | IEEE Nuclear Science Symposium Conference Record |
| Volume | 5 |
| State | Published - 2004 |
| Externally published | Yes |
| Event | 2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors - Rome, Italy Duration: Oct 16 2004 → Oct 22 2004 |