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Measurement. 1. Disturbed Sample Destructive SamplingUsed for mass water content.A direct form of measurement.Labor intensive.2. Intact Core SamplingUsed for volume water content.Also a direct form of measurement.Also labor intensive. 3. Gamma Ray AttenuationAn indirect but non-destructive method.Originally developed and applied in the laboratory but has since been extended to the field.Consists of a Cs 137 source and a parallel detector.A narrow beam of gamma radiation is direc30587
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1. Water Content & Energy Status