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Self‐Absorption Corrections for the ^(14)C Method with BaCO_3 for Measurement of Primary Productivity
Author(s) -
Wood Kenneth G.
Publication year - 1971
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1937632
Subject(s) - productivity , geiger counter , primary productivity , absorption (acoustics) , ecology , detector , physics , environmental science , nuclear physics , atmospheric sciences , biology , optics , economics , ecosystem , macroeconomics
Self—absorption of (14)C beta radiation is shown to follow an exponential relationship under certain conditions. A new method of BaCO(2) fixation of activity is presented by which it is possible to determine productivity without using the efficiency of the detector in the calculations. Many objections to the Geiger—Muller method are explained, and corrections are suggested for the methods of Steemann Nielsen and of Sorokin.