default constructor for Photon

Class that keeps a photon's data as it moves through the tissue

Method to check for absorption according to analog random walk process

Method to deweight for absorption according to continuous absorption weighting (CAW) random walk process

Method to deweight for absorption according to discrete absorption weighting (DAW) random walk process

Method that determines whether photon reflects or refracts across interface. When this method is called photon is sitting on boundary of region and CurrentRegionIndex is Index of region photon had been in.

Determines whether the specified Object is equal to the current Object.

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.

Serves as a hash function for a particular type.

Gets the Type of the current instance.

Creates a shallow copy of the current Object.

method to move the photon to its next location

Method to scatter bidirectionally

Method to scatter according to Henyey-Greenstein scatter function

method that determines photon's step size based on the RegionScatterLength (1/mus or 1/mut depending on CAW or DAW)

Method to test for death of the photon

Method that kills photon due to Russian Roulette, maximum path length, etc.

Returns a string that represents the current object.

absorb action: analog, discrete, continuous

tissue region index where photon current is

index of current track of photon

photon data point has position, direction etc. info

PhotonHistory has list of PhotonDataPoints and SubRegionCollisionInfo

path length of current track, gets updated when passing tissue boundary

scatter action: Henyey-Greenstein, bidirectional, Mie

path length left after crossing tissue boundary