The previous blog entry on the uRADMonitor D presented a few details on this new radiation detector, stating that it will be able to detect not only gamma radiation, but also beta and alpha (including radioactive radon sources). One problematic issue was sourcing the proper detector, one that was both sensitive and small to fit […]
The Compensation Capacitor
Normally, the Geiger tube delivers a sharp short pulse, with an abrupt descending path, as the quenching gas very quickly neutralises the conductive ions, and so terminating the current flow. The uRADMonitor pulses appear with a slightly rounded tip because an extra capacitor is added in the circuit, named the “compensation capacitor”. All uRADMonitor model […]
The Geiger Tubes
The Geiger tube is a gaseous ionization detector that uses the Townsend avalanche phenomenon to produce an easily detectable electronic pulse from as little as a single ionising event due to a radiation particle. It is used for the detection of gamma radiation, X-Rays, and alpha and beta particles. It can also be adapted to […]
Building the uRADMonitor
It’s been a long road getting here, a road paved with constant innovation. And it’s a longer road ahead. The first uRADMonitor was a crude prototype, with jumping wires on a test board, it got its own PCB soon. The following models were a new design, more compact using the smaller SBM-20 and SI-29BG tubes, […]