Tag Archives: Digi-PET

one of the first to get hololens2

Today we have received Microsoft Hololens 2 as the first batch of this sweet hardware has been shipped worldwide.

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FPGAFAIS and Jagiellonian University are one of the first to have this equipment available for research.

The holographic goggles are intended to be used for J-PET project and visualization of tomographic measurement in real-time on the patient but it offers so much possibilities.

The goggles run Windows 10 and can be programmed in C# using Unity game engine and Vuforia. In case you have some experience in these technologies, don’t hesitate to join our group.

If you are interested, have an idea for an interesting project, have a look at diploma projects tabĀ or email directly at grzegorz.korcyl@uj.edu.pl

Many thanks to Bechtle AG for assisting us with the purchase.

D-JPET Readout – Synchronized Aurora Links

Another step towards working system for D-JPET scanner. We have 48 front-end boards that digitize the signals and measure time, readout by 4 concentrator boards. But how synchronize them using a single fiber connection that we have for data transport and control/monitoring?

We have based our data transport infrastructure on default AXI components and Aurora links. One can share a single link between AXI Stream and Memory Mapped applications, which is perfect for our project. This allows to develop a system incredibly fast, basically using block design in Vivado.

But, using the block design, you often get what they give you. So the automatically generated Aurora links have fixed clocking scheme, with no ways to change it using the wizards. One can still take the generated sources and create a custom IP. Then it is easy to change the clocking scheme and synchronize to the clock recovered from the input data stream. And when you realize that there are few bits available in the AXI Stream data bus, you can use them to transport additional information, like synchronization pulses.