# FastcamDivertor¶

Contacts: Igor Bykov

## Short Description¶

DIII-D fast camera divertor diagnostic analysis

## Keywords¶

Diagnostic, divertor, camera, visible

## Long Description¶

The module plots time traces of the filtered visible light intensity measured by the 90deg UCSD fast camera. Using the QV2 image splitter. It grabs the 4 images from each frame, applies convertion sequence to each of them and stores the data from the four channels.

The data are mapped onto the S-coordinate (distance from the inner midplane measured along the oploidal wall outline).

## Typical workflows¶

1. In the INPUTS section set: * shot - shot number (only shots from Todd’s day should be used) * vmax - maximum color bar value, adjust to improve sensitivity or avoid saturation during ELMs * angle_shift - shift in deg. of the poloidal slice (4 deg wide) with respect to the 75 deg toroidal angle which is the center of the image. E.g. angle_shift = 15, then the S-cordinate mapping is done for the cross section at 75+15 = 90 deg.

2. Run Plot_Scoord_trace_2 to collect data from the fast camera

3. To replot a just-closed figure without wasting time for reading the camera data again.

• DIII-D

## Contributors¶

List of contributors sorted by number of lines authored:

2291 Igor Bykov
67 Orso Meneghini


None

## Users¶

List of usernames sorted by number of module imports: bykovi, munarettos, meneghini, orlov, smithsp