I and many others I know have been trying to tell the media and scientific community about the urgent need to update the 1950's Geiger Counters.
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First there's NOTHING wrong with Geiger counters - and they are quite sensitive.

A Geiger counter is a radiation detector that has a voltage on it that is so high that when it detects
a photon - the entire gas become conductive until the circuit briefly interrupts the voltage.

Geiger counters are FINE for telling you about the presence of radiation.

Most scientists in the lab use semiconductor detectors - essentially big transistors - that not only
can detect the radiation like the Geiger counter can - but tell you the energy of the photon.

Scientists have been using solid state semiconductor detectors for decades where they need
to measure the energy spectrum.