]> Load tMCimg history file

Import tMCimg History Files

readMCHis() reads the history file generated by tMCimg. Every photon reaching a detector is save to disk along with the distance traveled in each type of tissue. Summing these photons gives not only the signal recorded at the detector but also an easy way to see the effect of changing to absorption (but not the scattering) in different tissue regions.

Function Summary

Syntax:	[phi, nph] = readMCHis(filename, mua_vec);
Inputs:	filename	History file to read (without the .his extension)
Inputs:	mua_vec	Matrix of tissue absorption coefficients
Outputs:	phi	Total fluence at each detector
Outputs:	nph	Total number of photons reaching each detector

Detailed Descriptions

The absorption can be adjusted after the fact because the path lengths are recorded in the history file and changing the absorption only changes the photon weightings, not its path. Changing the scattering, though, would change the actual path length distributions, and therefore to change the scattering requires re-running the simulation.