| Autor: |
Basta D; Department of Medical Physics and Bioengineering, University College London, Malet Place, Gower Street, London WC1E 6BT, United Kingdom., Endrizzi M; Department of Medical Physics and Bioengineering, University College London, Malet Place, Gower Street, London WC1E 6BT, United Kingdom., Vittoria FA; Department of Medical Physics and Bioengineering, University College London, Malet Place, Gower Street, London WC1E 6BT, United Kingdom., Kallon GK; Department of Medical Physics and Bioengineering, University College London, Malet Place, Gower Street, London WC1E 6BT, United Kingdom., Millard TP; Department of Medical Physics and Bioengineering, University College London, Malet Place, Gower Street, London WC1E 6BT, United Kingdom., Diemoz PC; Department of Medical Physics and Bioengineering, University College London, Malet Place, Gower Street, London WC1E 6BT, United Kingdom., Olivo A; Department of Medical Physics and Bioengineering, University College London, Malet Place, Gower Street, London WC1E 6BT, United Kingdom. |
| Abstrakt: |
We discuss a portable edge illumination x-ray phase contrast imaging system based on compact piezoelectric motors, which enables its transportation to different environments, e.g., hosting different x-ray source technologies. The analysis of images of standard samples reveals an angular sensitivity of 270 ± 6 nrad, which compares well with the 260 ± 10 nrad reported for previous systems based on stepper motors, demonstrating that system portability can be achieved without affecting phase sensitivity. The results can also be considered a test of the performance of the piezoelectric motors, and as such could be of interest to researchers planning their use in other imaging systems. |
