| Autor: |
Chiho Makifuchi, Kazuhiro Kido, Junko Kiyohara, Tsukasa Ito, Sumiya Nagatsuka, Atsushi Momose, Pramod K. Rastogi, Erwin Hack |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| Popis: |
The purpose of this study was to design an X‐ray Talbot‐Lau interferometer for the imaging of bone cartilage using a practical X‐ray tube and to develop that imaging system for clinical use. Wave‐optics simulation was performed to design the interferometer with a practical X‐ray tube, a source grating, two X‐ray gratings, and an X‐ray detector. An imaging system was created based on the results of the simulation. The specifications were as follows: the focal spot size was 0.3 mm of an X‐ray tube with a tungsten anode. The tube voltage was set at 40 kVp with an additive aluminum filter. The pixel size of the X‐ray detector was 85 μm. The amplitude grating was a Ronchi‐type grating whose pitch was 5.3 μm. Imaging performance of the system was examined with X‐ray doses of 0.5, 1 and 3 mGy so that the bone cartilage of a chicken wing was clearly depicted with X‐ray doses of 3 mGy. This was consistent with the simulation’s predictions. Further optimization of the system will follow to reduce the X‐ray dose for clinical use. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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