EXPORTED TO: Japan, National Institute for Fusion Science , Gifu-ken, Toki-shi, Oroshi-cho

Filter-Lens Imaging Polychromator (FLIP) is optical system that was designed to obtain pellet cloud images in up to nine narrow spectral intervals simultaneously. This system consists of 9 filters, 9 identical lenses, field lens and CCD camera with objective. This system allows to measure nine snap-shots of pellet cloud using the CCD camera.

FLIP system was installed on Large Helical Device in National Institute for Fusion Science for spectroscopic measurements of impurity pellet cloud radiation in visible spectral range.

Number of spectral intervals


View region

ø 160 mm

Distance to view region

~ 3 m

Spatial resolution

0.7 mm/pixel

Temporal resolution

10 µs