X-Ray Scanning Technology (Mostly the software end of things) By: Zuzana Srostlik Advisor: Alan Rudge Through Ohio State and CERN.

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