x-ray scanning technology (mostly the software end of things) by: zuzana srostlik advisor: alan...
TRANSCRIPT
X-Ray Scanning Technology(Mostly the software end of things)
By: Zuzana Srostlik
Advisor: Alan Rudge
Through Ohio State and CERN
The Hardware
LED
USB PORT
FIFO FIFO FIFO
RESET
MICROCHIP
DISPLAY(ARA1-4)
ASIC
COMPUTER
The Chip
CdZnTe Detector
Chip
The Software: not connectedUSBtest – DLL V2.2 DLP Design
Search
Open
0
No device connected.
DescriptionSerial Number
Dev #Open by:
Description and Serial Numbers are Case Sensitive!STATUS
0
0
0
No devices found.
EXIT
New Trial
Send Info
No. of
Frames
Low Discriminator
(0 to 255)
High Discriminator
(0 to 255)
Data output from Device
OK
The Software: connectedUSBtest – DLL V2.2 DLP Design
Search
Open
0
DLPXXXXX ready.
DescriptionSerial Number
Dev #Open by:
Description and Serial Numbers are Case Sensitive!STATUS
4
110
255
Devices found:010 0X09
EXIT
New Trial
Send Info
No. of
Frames
Low Discriminator
(0 to 255)
High Discriminator
(0 to 255)
Data output from Device
10 0X099 0XDF….
OK
How Signals Look(with source)
Signals not strong enough to pick up
Radioactive source
Noise
What Work Still Needs to be Done
• Figure out why device causes software to spew hex info into GUI edit boxes (buffers)
• Reformat device data from USB to fit data display format
• With new file, create graphical output (like previous graph)
• Test lots of different sources to rate chip performance
How This Matters
• Single photon counting with first order energy discrimination offers lower dose and better image resolution than current integrating techniques
Small animal imaging requires high count rates in order for example, to see mouse heart beats.
Direct digital techniques offer significant advantages over current analogue technology and will eventually replace film
Cool things I did here in Europe
• Three hour blackberry picking expedition• Found no less than 4 really awesome playgrounds• Went to Bern (farmer’s market!) and Gruyeres (Cheese!)• Met some awesome new buddies• Had Italian Gelato• Hiked in the Juras• Experienced wandering herds of grazing herbivores with
bells• Lived through crazy Geneva weather and got a sweet
sandal tan
The End
Thanks to: NSF, Ford, University of Michigan, CERN