Research 15: N Winch

1. X-ray imaging using a consumer
grade digital SLR camera
Nicola Winch and Andy Edgar

2. Outline
• X-ray imaging
• Storage phosphors
• New readout technique
• Performance factors
• Images
• Conclusions and future work

3. X-ray imaging
http://australianaviation.com.au

4. Imaging plates versus film
Exposure
Film Storage phosphor
Storage Film
phosphor

5. Storage phosphor imaging plates
Eu2+
www.agfa.com

6. Readout – new method
Megapixels
Year
http://www.stupidcomplex.me/archives/106

7. Imaging set up
LED

8. Colour discrimination
BaFBr
CsBr

9. Sensitivity – X-ray dose
BaFBr
CsBr
Average pixel value
Dental
Chest

10. Spatial Resolution
Optical - photographic
BaFBr – imaging plate
CsBr – imaging plate
Modulation transfer function

11. Tarakihi
300 mm

12. Water pump
140 mm

13. Wristwatch
30 mm

14. Integrated Circuits
9 mm
10 mm

15. Advantages
• Low Cost
• Portable
• X-ray and real images
• Reusable plates
• Easily upgradable

16. Conclusions and Future Work
• Digital camera can be used for x-ray imaging
• Resolution is comparable to laser scanning
• Portable imaging possible
• Low sensitivity
• Field testing
More info:
Nuclear Instruments and Methods A, 654 (2011) 308-313