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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Radiat Res. 2018 Mar;189(3):312–325. doi: 10.1667/RR14923.1

TABLE 1.

Summary of Parameters Used in the Track Structure Model of Changes to Dendritic Morphology

Parameter Symbol Units
Mean particle fluence F Number per μm2
Linear energy transfer LET keV/μm
Absorbed dose DF Gy
Impact parameter (radial distance from particle to dendritic segment or soma) b Microns (μm)
Radial dose D(b) Gy
Dendritic segment diameter dCyl Microns (μm)
Dendritic segment volume Vcyl Cubic microns (μm3)
Frequency mean specific energy in dendrite cylindrical segment zF(b, dCyl) Gy
Absorbed dose corresponding to reduction in dendritic length by one-half DHV Gy
Damage response-sensitivity parameters
 Sensitivity parameter for soma apoptosis DTH,S Gy
 Sensitivity parameter for dendrite snip DTH,D Gy
 Sensitivity for neuron death due to dendritic length reduction DL Unitless

Note. Other model parameters specifically related to random damage models are described in the discussion of Eqs. (7–9).