gamma.model: Gamma (X ray) response models

Description Details See Also

Description

In libamtrack, there are currently six parametrizations of the gamma / X ray response of a system. They are referred to using sequential positive integer numbers (see details).

Details

The implemented gamma models are:

gamma.model description
1 A simple test function (constant over entire track width/electron range)
2 Generalized hit/target model
3 Radioluminescence response
4 Simple exponential saturation (special case of 2: one hit / one target)
5 Linear-quadratic model
6 Mejdahl's TLD response for LiF as used by Geiss et al. (1998)

The corresponding gamma parameters are:

gamma.model gamma.parameters[1] gamma.parameters[2] gamma.parameters[3] gamma.parameters[4] gamma.parameters[5]
1 NA NA NA NA NA
2 rel. response characteristic dose [Gy] hittedness multiplicity 0 to finish or another set of 4 parameters [1]-[4]
3 max. response transition dose [Gy] dynamic NA NA
4 max. response characteristic dose [Gy] NA NA NA
5 alpha [1/Gy] beta[1/Gy2] transition dose [Gy] NA NA
6 const k1 a1 k2 a2\

The corresponding default/example values are:

gamma.model gamma.parameters[1] gamma.parameters[2] gamma.parameters[3] gamma.parameters[4] gamma.parameters[5]
1 NA NA NA NA NA
2 1.0 10.0 1 1 0
3 1e6 20.0 6.0 NA NA
4 1e6 10.0 NA NA NA
5 0.2 0.018 30.0 NA NA
6 6e3 0.59 5e-4 0.41 2e-6

See Also

More information on models, especially the explicit formulas used, valid energy ranges and references to literature are found in the libamtrack reference manual (http://libamtrack.dkfz.org/libamtrack/images/3/31/LibamtrackReferenceManual.pdf).


libamtrack documentation built on May 29, 2017, 9:28 a.m.