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2.15 Rank 2 Interaction Parameters

This section describes how an ASCII file may be constructed that is self readable by a rank 2 interaction. The file can be created with any editor and is read with the rank 2 interaction member function "read". An example of one such file is given in its entirety at the end of this section. Keep in mind that parameter ordering in the file is arbitrary. Other parameters are allowed in the file which do not relate to rank 2 interactions.

Rank 2 Interaction Parameters
Parameter Units Examples Parameter (Type1) : Value - Statement
R2eta none

R2eta               (1) : 0.33        - Rank 2 Asymmetry2

R2theta degrees

R2theta            (1) : 127.2       - Orientation from PAS z (deg)3

R2phi degrees

R2phi               (1) : 270.9       - Orientation from PAS x (deg)4

1
Parameter type 1 indicates an double precision number parameter.
 2
The asymmetry parameter must be within the range of [0, 1]. This parameter does not need to be set for a rank 2 interaction definition, it will be assumed 0 if unspecified.
 3
The angle theta which relates the rank 2 interactions orientation down from the z-axis of its PAS may be set. This is not essential and will be taken as zero in left unspecified
 4
The angle phi which relates the rank 2 interactions orientation over from the x-axis of its PAS may be set. This is not essential and will be taken as zero in left unspecified



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