what is this electronic device ? 3D radiation detector ?

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my latest : What is this Electronic device ?
so far i dont know, will edit text here, if we figure it out, please comment, please help, please say if you know, or just guess..
Some times i get special science technology into my lab, this one looks like a one-off unit, no names on the main unit this one was pulled from, and i dont have any Pictures from the complete unit, it was not taken apart by me.

https://youtu.be/E6UunaM6YSs