Tracing of water flow by means of radioactive isotopes and scintillation counters.
D007554:Isotopes; D011868:Radioisotopes; D011874:Radiometry / Q000295:instrumentation*; D012588:Scintillation Counting; D014881:Water Supply
D007554:Isotopes; D011868:Radioisotopes
ISOTOPES; RADIATION COUNTERS; WATER SUPPLY