USGS Open-File Report 2004-1381, Putting radon to work: Identifying coastal ground-water discharge sites, Figure 2

USGS Woods Hole Field Center / Coastal and Marine Geology Program

Putting Radon to Work: Identifying Coastal Ground-Water Discharge Sites, USGS Open-File Report 2004-1381

Figure 2. RAD7 portable radon detector (made by Durridge Company, Bedford, Massachusetts). A pump circulates gas to the detector in a closed loop connected to the air-water equilibrator (Figure 1).