FEU-31A (ФЭУ-31A)  PMT Photomultiplier USSR

Up for sale lot of 1pc tube FEU-31A.

The photomultiplier tube FEU-31A for operation in scintillation counters for gamma spectrometry.

A photomultiplier tube FEU-31A for indicating the measurement of weak light fluxes in the visible region of the spectrum.

Photocathode - antimony-cesium, spectral characteristic No. 6.

Optical input - end.

The number of  amplification cascades is 8.

Design - glass, baseless (RSh 23/РШ23).

The diameter of the working area of the photocathode is 18 mm.

Weight 20 g