The function provides a very particular analysis to correct the irradiation time while irradiating Al2O3:C chips in a luminescence reader.
analyse_Al2O3C_ITC(object, signal_integral = NULL, dose_points = c(2,
4, 8, 12, 16), recordType = c("OSL (UVVIS)"), method_control = NULL,
verbose = TRUE, plot = TRUE, ...)
'>RLum.Analysis or list (required): results obtained from the measurement. Alternatively a list of 'RLum.Analysis' objects can be provided to allow an automatic analysis.
list (optional): optional parameters to control the calculation. See details for further explanations
logical (with default): enable/disable verbose mode
logical (with default): enable/disable plot output
further arguments that can be passed to the plot output
Function returns results numerically and graphically:
-----------------------------------
[ NUMERICAL OUTPUT ]
-----------------------------------
RLum.Results
-object
slot: @data
Element | Type | Description |
$data |
data.frame |
correction value and error |
$table |
data.frame |
table used for plotting |
$table_mean |
data.frame |
table used for fitting |
slot: @info
The original function call
------------------------
[ PLOT OUTPUT ]
------------------------
A dose response curve with the marked correction values
0.1.1 (2018-04-27 17:34:30)
Kreutzer, S. (2018). analyse_Al2O3C_ITC(): Al2O3 Irradiation Time Correction Analysis. Function version 0.1.1. In: Kreutzer, S., Burow, C., Dietze, M., Fuchs, M.C., Schmidt, C., Fischer, M., Friedrich, J. (2018). Luminescence: Comprehensive Luminescence Dating Data Analysis. R package version 0.8.6. https://CRAN.R-project.org/package=Luminescence
Background: Due to their high dose sensitivity Al2O3:C chips are usually irradiated for only a very short duration or under the closed beta-source within a luminescence reader. However, due to its high dose sensitivity, during the movement towards the beta-source, the pellet already receives and non-negligible dose. Based on measurements following a protocol suggested by Kreutzer et al., 2018, a dose response curve is constructed and the intersection (absolute value) with the time axis is taken as real irradiation time.
method_control
To keep the generic argument list as clear as possible, arguments to allow a deeper control of the method
are all preset with meaningful default parameters and can be
handled using the argument method_control
only, e.g.,
method_control = list(fit.method = "LIN")
. Supported arguments are:
ARGUMENT | FUNCTION | DESCRIPTION |
mode |
plot_GrowthCurve |
as in plot_GrowthCurve; sets the mode used for fitting |
fit.method |
plot_GrowthCurve |
as in plot_GrowthCurve; sets the function applied for fitting |
Kreutzer, S., Martin, L., Gu<U+00E9>rin, G., Tribolo, C., Selva, P., Mercier, N., 2018. Environmental Dose Rate Determination Using a Passive Dosimeter: Techniques and Workflow for alpha-Al2O3:C Chips. Geochromometria 45, 56-67. doi: 10.1515/geochr-2015-0086
# NOT RUN {
##load data
data(ExampleData.Al2O3C, envir = environment())
##run analysis
analyse_Al2O3C_ITC(data_ITC)
# }
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