Luminescence (version 0.3.4)

Second2Gray: Converting values from seconds (s) to gray (Gy)

Description

Conversion of absorbed radiation dose in seconds (s) to the SI unit gray (Gy) including error propagation. Normally used for equivalent dose data.

Usage

Second2Gray(values, dose_rate, method = "gaussian")

Arguments

values

data.frame (required): measured data (values[,1]) and data error (values [,2])

dose_rate

vector (required): dose rate in Gy/s and dose rate error in Gy/s

method

character (with default): method used for error calculation (gaussian or absolute), see details for further information

Value

• Returns a data.frame with converted values.

Function version

0.3 (2014-04-13 14:32:24)

Details

Calculation of De values from seconds (s) to gray (Gy) $$De [Gy] = De [s] * Dose Rate [Gy/s])$$ Provided calculation methods for error calculation: gaussian error propagation $$De.error.gray = \sqrt(dose.rate * De.error.seconds)^2 + (De.seconds * dose.rate.error)^2 ))$$ absolute error propagation $$De.error.gray = abs(dose.rate * De.error.seconds) + abs(De.seconds * dose.rate.error)$$

References

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See Also

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Examples

##(1) for dose taken from the example data help file
data(ExampleData.DeValues, envir = environment())
Second2Gray(ExampleData.DeValues, c(0.0438,0.0019))