Medusa
Description
The very high resolution scanner Medusa is the re-designed version of the first UGCT sub-micron CT system. Similar to this system and Nanowood, it combines a Photonic Science VHR detector with a large-area Varian flat-panel detector to allow for both low-density objects such as biological tissue, and high-density samples such as geomaterials. Both detectors are mounted on motorized linear stages for easy and fast switching and high accuracy. On this stage, additional space is available for experimental detectors and other tests. The setup also allows for a very long propagation distance of 1.4m, which can be exploited for phase-contrast experiments. The FeinFocus transmission tube allows for a resolution of approximately 0.9 µm and for X-ray targets of different material and thickness.
This flexible research system is designed with flexibility in mind, making it ideal for testing and optimizing novel CT methods.
Specifications
- Feinfocus Transmission X-ray tube
- 160 kV, max 150 W, W- or Mo-anode
- down to 0.7 µm spot size
- Varex PaxScan 1515DXT detector
- 1152×1152 pixels
- 127 µm pixel pitch
- CsI scintillator screen
- Photonic Science XR GSense 4040 detector
- 4096×4096 pixels
- 9 µm and 16 µm pixel pitch versions
- Gadox scintillator screen
- Up to 1.4 m source-detector distance allows large magnification
- Spectral detectors (optional)
- Hexitec
- 80×80 pixels, 250 µm pitch
- 1 mm CdTe sensor
- 10 kHz frame rate
- PNSensor SLcam/CXC
- 264×264 pixels, 48 µm pitch
- 450 µm Si sensor
- 400 Hz frame rate
- DirectConversion Actaeon FX3
- up to 390×260 pixels, 100 µm pitch
- 0.75 mm CdTe sensor
- 2 kHz frame rate
- Hexitec
- Grating-based Talbot-Lau interferometry (optional)
- Sample limitations*:
- 4 cm diameter
- max. 1 kg load
*Additional limitations may apply depending on sample density and composition
References
More details can be found in Masschaele et al. (2007).