According to the article, not in the pattern that this researcher found. I guess if it had been kicked-up dust, or emissions from a particular trench, you'd expect sensors near the source to register high levels of radiation and sensors near one another to register similar readings, but the actual readings didn't make this kind of sense.

I mean, that could describe all of Ukraine then...

The argument seems to be that the staff let the soldiers think there was radiation so they didn't go around breaking shit and would want to leave.

The staff did a bit of play to make the soldiers worried about digging too much.

But hacking the sensors? Russia knew the radiation spikes were false, had the motive, and that they took the servers with them when they left also leaves them looking particularly guilty.