Radiation Monitoring over Long-Distance Telephone Lines and Direct Field Lines

Long-distance monitoring of radiation levels can be accomplished economically and reliably over commercial telephone line circuits. The system described was developed for the Atomic Energy Commission for the remote monitoring of gamma radiation resulting from atomic explosions. Though its principal use has been over long distance telephone lines, it can also be used over direct field lines for monitoring sites within approximately 15 miles of the control station. The monitoring stations consume power only durg challenges which last for about two minutes each. Total battery drain is therefore quite low, permitting the stations to remain unattended for long periods.