The dose-response of the CO2- -signal (g = 2.0006) in foraminifera with ages between 19 and 300 ka is investigated. The sum of two exponential saturation functions is an adequate function to describe the dose-response curve up to an additional dose of 8000 Gy. It yields excellent dating results but requires an artificial dose of at least 5000 Gy. For small additional doses of about 500 Gy the single exponential saturation function can be used to calculate a reliable equivalent dose D-E, although it does not describe the dose-response for higher doses. The CO2- -signal dose-response indicates that the signal has two components of which one is less stable than the other. (C) 2002 Elsevier Science Ltd. All rights reserved.
|Translated title of the contribution||Equivalent dose determination in foraminifera: analytical description of the CO2¯-signal dose-response curve|
|Pages (from-to)||95 - 101|
|Number of pages||7|
|Publication status||Published - Feb 2003|