Frequently Asked Questions

The L13D21H is a 13mm (0.5”) diameter, end window photomultiplier with a blue-green sensitive bialkali photocathode and 10 high gain, high stability, SbCs dynodes of linear focused design.

The L13D21H is suitable for scintillation counting, general purpose low light level detection, low dark current, and good energy resolution.

The spectral range of the L13D21H Photomultiplier Tube is 290-630 nm.

The dark current at 20°C for the L13D21H Photomultiplier Tube is 0.5 nA at nominal A/lm and 50 nA at max. Rated A/lm.

Yes, the L13D21H can be supplied with a custom designed voltage divider installed.

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