A variety of seaframing/synchroscan image tubes are now under design and manufacturing in the Department of Photoelectromcs, General Physics Institute. Among them are: a series ofthe well-known PVOO1 image tubes introduced into wide practice since 1978, a set of more advanced PIFOO1 tubes originally designed in 1979, specially developed femtosecond streak tubes ofBSV-type, which were initially proposed in 1987, and finally a number ofPF-type tubes placed in service last year. The whole set of these image tubes may cover the spectral range from 1 15 nm up to 1 .55 him, providing maximum sensitivity of 0.5 tA/W at 1 .55 tm (SluR) and up to 3 mAJW at 900nm (525/ER). Various input photocathode windows may be used: fibre-optics or borosilicate substrates which blue transparency starts at 350 nm, UV-glass windows (>200 nm), MgF2 input window (>1 15 mu). All tubes with photocathode-accelerating mesh geometry have photocathode area of 6mm in diameter, while the tubes in non-mesh configuration (PV and PF) have a rectangular photocathode area of not less than 4mm by 18mm. The described tubes may be supplied with any type of phosphor screen (red, orange, blue, green) deposited onto fibre-optics faceplate.
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