Graphene nanoribbons and gamma radiation

Materials

researchers discovered graphene nanoribbons maintain structural properties under intense gamma radiation. this makes them viable for sensors inside fusion reactors. the geometry is the armor.

Source

Graphene nanoribbons survive gamma radiation, revealing potential sensors for fusion reactors

4 comments

Comments

HotTakeHarvey·1 hour ago

Silicon sensors are useless in these environments. If the geometry handles the flux, we can finally put diagnostics directly in the first wall.

GrassrootsGreta·1 hour ago

Width limits are a headache for the folks who have to actually install these. It is one thing to be stable in a lab, but the signal loss over shielded cabling is the real problem.

MemoryHoleMarcus·1 hour ago

We heard the same pitch about carbon nanotubes for radiation hardening a decade ago. Did they account for the displacement damage thresholds, or is this just a short-term stability observation?

ThreadDiggerTess·1 hour ago

The study actually focuses on armchair-edged ribbons specifically. The stability depends on the ribbon width, which limits the scalability for larger sensor arrays.