The following points should be made clear beofore the test.
1.The acceptance test procedure (ATP) to be applied by the supplier to validate the compliance of 18mm tubes to the specifications and requirements.The nominal input and output diameters are 18mm respectively. The intensifier incorporates an S-25 photocathode,and a P22 or P43 phosphorParticular features of this intensifier include point highlight saturation, low distortion, high resolution, and precision-engineered reference surface.The intensifier has AVG input and fibre-optic output windows.
2 The acceptance tests of 18mm image intensifier tube shall be performed by checking the following parameter:
Photocathode sensitivity
Equivalent background input
Luminance gain
Signal-to-noise
ratio Resolution
6.Photocathode,microchannel plate and screen quality
3 the Inspection requirement for acceptance tests
EBI and SNR measurements will after a minimum 2 hours stabilization at 20℃±1℃ within darkness.
The Photocathode sensitivity shall be not less than 850μ A/lmThe radiant sensitivity shall be not less than 80 mA/W at 0.800 micrometer and 60 mA/W at 0.850 micrometer.
