Specialized - Photo Tube ·ImageConverterIntensifier
Electrostatic or cascaded image-intensifier tube designed for night viewing or specialized ultraviolet/low-light imaging.
The Thomson-CSF TH9477 is a ultraviolet-sensitive electrostatic-focus image intensifier for approximately 200–300 nm radiation.
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
No fixed ratings are recorded for this section.
Electron-optical image-intensifier structure; specialized photocathode/focus/screen values retained as parameters.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Maximum photocathode-to-screen/anode voltage
15 kV
Input window transmission at 250 nm
90 %
Spectral response
200 to 300 nm
Electronic magnification
2.3 x
Useful input field diameter
7 mm
Useful input field diameter
7 mm
Photocathode material
Cesium telluride
Output phosphor type
P20
Image-intensifier electron optics
Triode