analyse_TL.SAR: SAR protocol for thermoluminescence dating
In TLdating: Tools for Thermoluminescences Dating

Description Usage Arguments Details Value Author(s) References See Also

This function calculates the equivalent dose (ED) using the SAR protocol.
See details for more information.

analyse_TL.SAR(object, eval.Tmin, eval.Tmax,
  rejection.criteria = list(recycling.ratio = 10, recuperation.rate = 10,
  testdose.error = 10, paleodose.error = 10),
  fitting.parameters = list(fit.method = "LIN", fit.weighted = FALSE,
  fit.rDoses.min = NA, fit.rDoses.max = NA),
  plotting.parameters = list(plot.Tmin = 0, plot.Tmax = NA, no.plot = FALSE))

`object`	`TLum.Analysis` (required): object containing the TL curves used for the ED calculation.
`eval.Tmin`	integer (required): Temperature (<c2><b0>C) of the lowest boundary for the signal integration.
`eval.Tmax`	integer (required): Temperature (<c2><b0>C) of the upper boundary for the signal integration.
`rejection.criteria`	list (with default): list containing the rejection criteria (in %). See details.
`fitting.parameters`	list (with default): list containing the fitting parameters. See details.
`plotting.parameters`	list (with default): list containing the plotting parameters. See details.

This function estimates the equivent dose in thermoluminescence dating using the SAR protocol. The equivalent dose is estimated for each disc using the growth curve approaches (QC) (Aitken, 1985) and the dose plateau approach (DP). Both approach should provide a similar result.

The Lx/Tx matrix is estimated using calc_TL.LxTx.
The plateau test values are estimated using calc_TL.plateau.

Rejection criteria
The rejection criteria are:

recycling.ratio: numeric: Maximum recycling ratio accepted (in %).
recuperation.rate: numeric: Maximum recuperation rate accepted (in %).
paleodose.error: numeric: Maximum error accepted on Lx (in %).
testdose.error: numeric: Maximum error accepted on Tx (in %).

Fitting parameters
The fitting parameters are:

method: character: Fitting method (LIN, EXP, EXP+LIN or EXP+EXP).
fit.weighted: logical: If the fitting is weighted or not.
fit.rDoses.min: numeric: lowest regenerative dose used for the fitting.
fit.rDoses.max: numeric: highest regenerative dose used for the fitting.

See also plot_TL.SAR.

The results are plotted using plot_TL.SAR.

The function also provides an TLum.Results containing:

De.GC: list: Results obtained with the dose plateau approach and their uncertainties. (De, De.error)
De.DP: list: Results obtained with the growth curve approach and their uncertainties. (De, De.error)
LnLxTnTx.table: matrix: Lx/Tx values
RC.Status: character: Results of the rejection tests.

David Strebler, University of Cologne (Germany),
David Strebler

Aitken, M.J. (1985) Thermoluminescence Dating, Academic Press, London

Murray & Wintle (2000). Luminescence dating of quartz using an improved single-aliquot regenerative-dose protocol. Radiation Measurements, Vol.32, No.1, p.57-73.

calc_TL.LxTx, calc_TL.plateau, calc_TL.SAR.fit, analyse_TL.MAAD.

TLdating documentation built on May 2, 2019, 9:26 a.m.