measure_SAR_OSL: Measure an aliquot with the CW SAR OSL protocol

In sandbox: Probabilistic Numerical Modelling of Sediment Properties

Measure an aliquot with the CW SAR OSL protocol

Description

The function models the time-dependent photon counts of an aliquot according to the specified CW SAR OSL (continuous wave, single aliquot regenerative dose protocol for optically stimulated luminescence) sequence and parameters. The modelling is done for each component and photon count curves are summed to return an Luminescence::RLum.Analysis object as equivalent of importing a real measurement data set to the R-package Luminescence-package.

The function uses the package RLumModel-package to perform the simulation of the photon count curves.

Usage

measure_SAR_OSL(aliquot, sequence, dose_rate = 0.1)

Arguments

aliquot	data.frame or a list of it, a set of grains that are assigned to an aliquot (sample subset used for measurement), i.e., the result of prepare_Aliquot.
sequence	list, definition of the SAR protocol.
dose_rate	numeric value, Dose rate of the luminescence reader, in Gy/s.

Value

Luminescence::RLum.Analysis object. Equivalent of the import result for a real world measurement file. This object can be evaluated by functions of the package Luminescence-package.

Author(s)

Michael Dietze, GFZ Potsdam (Germany), Sebastian Kreutzer, Geography & Earth Sciences, Aberystwyth University (United Kingdom)

Examples

## Not run: 

## load example data set
data(sample_osl_aliquots, envir = environment())

sequence <- list(
  RegDose = c(0, 1, 2, 5, 10, 0, 1),
  TestDose = 2,
  PH = 220,
  CH = 200,
  OSL_temp = 125,
  OSL_duration = 70)

## reduce number of 
## grains to two
sample_osl_aliquots$aliquot_1 <- 
sample_osl_aliquots$aliquot_1[1:2,]

## or measure all aliquots in a row
sar_all <- measure_SAR_OSL(
 aliquot = sample_osl_aliquots,
 sequence = sequence,
 dose_rate = 0.1)
 
 
## End(Not run)

sandbox documentation built on March 18, 2022, 7:06 p.m.