Frequently Asked Questions

The 9781B is a 29 mm (1.13“) diameter, side window photomultiplier with a blue green sensitive bialkali photocathode and 9 high gain, high stability, SbCs dynodes of circular focused design.

The 9781B Photomultiplier Tube has voltage dividers available, magnetic shields available, and a wide range of applications including spectroscopy and high light level.

The 9781B Photomultiplier Tube has a wide range of applications including spectroscopy and high light level.

The quantum efficiency of the 9781B Photomultiplier Tube is over 1% of peak for a wavelength range of 165 - 680 nm.

The weight of the 9781B Photomultiplier Tube is 45 grams.

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