TRANSP includes a set of synthetic diagnostics which can be used as a consistency check with measured data. These require information about the line of sight geometry of the actual diagnostics on the experiment. This is provided via the following namelist settings:
NLDA = 8 : The number of interferometer viewing chords.
The interferometer lines of sight are based on the following information for JET shot 89090:
| Chord | R(ref) | Z(ref) | Orientation (+R) |
| 1 | 1.8899 | 0 | 1.570796327 |
| 2 | 2.70174 | 0 | 1.569920172 |
| 3 | 3.04008 | 0 | 1.567419115 |
| 4 | 3.73916 | 0 | 1.570796327 |
| 5 | 3 | -0.6118 | 0.390100286 |
| 6 | 3 | -0.3749 | 0.168099991 |
| 7 | 3 | -0.1469 | -0.038900073 |
| 8 | 3 | 0.18844 | -0.243700323 |
In the above table a refence point in the plasma is given in meters along with a direction in radians relative to the positive R axis. TRANSP requires a 'starting' point for each viewing chord given in cm, which is specified using the namelist entries RLDA and YLDA as well as a direction relative to the negative R axis in degrees specified using THLDA. Consequently for the vertical channels a starting point with Z=3m is used while for the horizontal channels a starting point with R=4m is used. It is also necessary to specify the toroidal angle of the viewing chord using the namelist entry PHLDA in degrees where a positive value indicates the direction of the plasma current. This yields the following values:
| Chord | RLDA [cm] | YLDA [cm] | THLDA [deg] | PHLDA (co-current) [deg] |
| 1 | 188.99 | 300.00 | -90.00 | 0.00 |
| 2 | 270.44 | 300.00 | -89.95 | 0.00 |
| 3 | 305.02 | 300.00 | -89.81 | 0.00 |
| 4 | 373.92 | 300.00 | -90.00 | 0.00 |
| 5 | 400.00 | -20.06 | -22.35 | 0.00 |
| 6 | 400.00 | -20.52 | -9.63 | 0.00 |
| 7 | 400.00 | -18.58 | 2.23 | 0.00 |
| 8 | 400.00 | -6.02 | 13.96 | 0.00 |
The information on the KS3 Visible Bremsstrahlung diagnostic was based on the information in DDA EDG7 for shot 89090. The first 6 entries in the datatypes EDG7/LOSH and EDG7/LOSV store the (X,Y,Z) locations of two points on the viewing chord of the horizontal and vertical KS3 diagnostics respectively:
| Point | X (m) | Y (m) | Z (m) |
| LOSH 1 | 3.406 | 5.097 | 0.341 |
| LOSH 2 | 1.060 | 1.415 | 0.108 |
| LOSV 1 | 0.608 | 3.055 | 3.354 |
| LOSV 2 | 0.672 | 3.181 | -1.204 |
Using this information the required TRANSP inputs can be determined:
NVBA = 2 : The number of visible Bremsstrahlung viewing chords.
| Chord | RVBA [cm] | YVBA [cm] | THVBA [deg] | PHVBA (co-current) [deg] |
| LOSH | 613.03 | 34.10 | -3.055 | -1.25 |
| LOSV | 311.49 | 335.40 | -91.77 | -164.33 |
These parameters were determined based on the information in this file provided by Jakub Bielecki and Alberto Milocco.
NNTA = 19 : The number of neutron array viewing chords.
The focal point for the horizontal array is:
RNTA = 605.5 cm
YNTA = 0.0 cm
The viewing angles of the different horizontal channels are:
| Channel | THNTA [deg] |
| 1 | 18.47 |
| 2 | 14.52 |
| 3 | 10.47 |
| 4 | 6.31 |
| 5 | 1.96 |
| 6 | -2.43 |
| 7 | -6.70 |
| 8 | -10.94 |
| 9 | -15.05 |
| 10 | -18.94 |
The focal point for the vertical array is:
RNTA = 302.15 cm
YNTA = 344.2 cm
The viewing angles of the different vertical channels are:
| Channel | THNTA [deg] |
| 11 | -77.58 |
| 12 | -80.62 |
| 13 | -83.72 |
| 14 | -86.85 |
| 15 | -90 |
| 16 | -93.15 |
| 17 | -96.28 |
| 18 | -99.38 |
| 19 | -102.42 |
Each viewing chord has PHNTA = 0.0
NXCA = 2 : The number of crystal detector viewing chords (KX1 & KS6).
The parameters for KS6 were provided by Ivor Coffey in a private communication:
RXCA = 400.0 cm
YXCA = 0.0 cm
THXCA = 0.0 degrees
PHXCA = 19.5 degrees
The parameters for KX1 were provided by Ash Patel in a private communication:
RXCA = 2700.0 cm
YXCA = 0.0 cm
THXCA = 0.0 degrees
PHXCA = 0.212 degrees
This information was correct as of 01/12/2015