Frequently Asked Questions

The 9235B is a 51mm (2”) diameter, end window photomultiplier with blue-green sensitive bialkali photocathode and 13 high gain, high stability, SbCs dynodes of linear focused design.

The 9235QB is a variant for applications requiring UV sensitivity.

The 9235B is used for low light level detection.

Voltage dividers and magnetic shields are available, as well as housings, power bases, and signal processing electronics from the UK factory.

The single electron rise time is 3ns, the single electron fwhm is 5ns, the single electron jitter (fwhm) is 6ns, the multi electron rise time is 4ns, and the multi electron fwhm is 6.5ns.

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