13.45 o15 n winch
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Transcript of 13.45 o15 n winch
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X-ray imaging using a consumer grade digital SLR camera
Nicola Winch and Andy Edgar
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Outline
• X-ray imaging
• Storage phosphors
• New readout technique
• Performance factors
• Images
• Conclusions and future work
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X-ray imaging
http://australianaviation.com.au
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Imaging plates versus film
Storage phosphor Film
Exposu
re
Storage phosphor
Film
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Storage phosphor imaging plates
www.agfa.com
Eu2+
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Readout – new method
http://www.stupidcomplex.me/archives/106
Year
Meg
apix
els
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Imaging set up
LED
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Colour discrimination
CsBr
BaFBr
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Sensitivity – X-ray dose
CsBr
BaFBr
Chest
Dental
Ave
rag
e p
ixe
l va
lue
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Spatial Resolution
CsBr – imaging plate
BaFBr – imaging plate
Optical - photographic
Modula
tion t
ransfe
r fu
nction
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Tarakihi
300 mm
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140 mm
Water pump
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Wristwatch
30 mm
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Integrated Circuits
9 mm
10 mm
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Advantages
• Low Cost
• Portable
• X-ray and real images
• Reusable plates
• Easily upgradable
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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