gamma.model: Gamma (X ray) response models

In libamtrack: Computational Routines for Proton and Ion Radiotherapy

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 2, 2019, 4:55 p.m.