Nuclear instrumentation for automatic analysis of radioisotope and chemical constituents of the ocean water and bottom

Radioisotopes at sub-background levels are measured by direct counting, to one picocurie per liter, and, following separation, to 0.01 picocurie per liter. Nuclear methods for analysis of stable elements may become important in chemical oceanography. These methods are used in tracer studies pollution control, mineral exploration, and oceanography, where automation and computer tabulation of data are needed.