Introduction

Diagnostic dot files specify geometric and auxiliary information about each diagnostic. Parsing of a diagnostic dot file begins by searching for a valid keyword. All lines before a valid keyword is reached are ignored allowing for comments and other information to be inserted in the file. Once a keyword is reached, the parsing becomes strict. The diagnostic description format is dependant on the specific keyword. All diagnostic dot files must end with an end_of_file keyword.

This document contains information about the soft x-ray chord specifications. Chords are specified in a structured text file. This file is read in by the v3fit_input::sxrch_dot_filename variable of the name list input file. Chords are specified as two verticies in either meters or radians.

Keywords

`sxr_chord_XYZ`	A soft x-ray chord specified in Cartesian coordinates.
`sxr_chord_RPhiDegZ`	A soft x-ray chord specified in Cylindrical coordinates.
`sxr_chord_XYZ_geo`	A soft x-ray chord specified in Cartesian coordinates with the geometric factor.
`sxr_chord_RPhiDegZ_geo`	A soft x-ray chord specified in Cylindrical coordinates with the geometric factor.
`sxr_chord_XYZ_xics_emiss`	A XICS emission chord specified in Cartesian coordinates.
`sxr_chord_RPhiDegZ_xics_emiss`	A XICS emission chord specified in Cylindrical coordinates.
`sxr_chord_XYZ_xics_ti`	A XICS electron temperature chord specified in Cartesian coordinates.
`sxr_chord_RPhiDegZ_xics_ti`	A XICS electron temperature chord specified in Cylindrical coordinates.
`sxr_new_profile`	Mark the start of chords that begin the next profile.

Chord Specification

All soft x-ray chords are specified in the following manner.

key_word name(STRING len:data_parameters::data_short_name_length) x1(REAL) y1(REAL) z1(REAL) x2(REAL) y2(REAL) z2(REAL)

Keywords that end with _geo, contain an extra geomtric factor.

key_word_geo name(STRING len:data_parameters::data_short_name_length) x1(REAL) y1(REAL) z1(REAL) x2(REAL) y2(REAL) z2(REAL) geo(REAL)

Example File

!  A soft x-ray chord specified in Cartesian coordinates.
sxr_chord_xyz
sxr001
1.0 0.0 0.0
0.5 0.0 0.0
 
!  A soft x-ray chord specified in Cylindrical coordinates.
sxr_chord_rphidegz
sxr002
1.0 0.0 0.0
0.5 0.0 0.0
 
!  All files must end with
end_of_file

Two Color Example File

!  A soft x-ray chord specified in Cartesian coordinates.
sxr_chord_xyz
sxr001
1.0 0.0 0.0
0.5 0.0 0.0
 
sxr_new_profile
 
!  A soft x-ray chord specified in Cylindrical coordinates.
sxr_chord_rphidegz
sxr002
1.0 0.0 0.0
0.5 0.0 0.0
 
!  All files must end with
end_of_file

Programmers Reference

Reference material for the coding to parse these files can be found in the signal_dot and sxrch_dot modules.