Frequently Asked Questions

The B29B07W is designed for scintillation counting and other applications where high quantum efficiency, low dark current, good collection efficiency, and gain stability are of paramount importance.

The B29B07W Photomultiplier Tube has voltage dividers available and magnetic shields available. In addition, the UK factory supplies housings, power bases, and signal processing electronics together with a new range of integrated detector modules.

The electrical operating ratings of the B29B07W Photomultiplier Tube include Cathode to dynode No. 1 voltage of 40-300 VDC, Cathode to anode voltage of 1500 VDC, Voltage between consecutive dynodes of 250 VDC, Ambient storage temperature of 23-60oC, Anode current, average over 30 sec. of 10.0 µA, Cathode current of 0.2-0.3 µA, Cathode luminous sensitivity of 50-1090 µA/lm, Quantum efficiency @ 420 nm of 25%, Cathode radiant sensitivity @ 420 nm of 80 mA/W, Anode luminous sensitivity of 10-40 A/lm, Current amplification @700 VDC of 1 X 106, Anode dark current (3) @ 22o C of 0.5-50 nA, and Plateau width @ 40 mV threshold (approx. 100 keV) with 13 7 Cs source of 0.02-2.0.

The B29B07W Photomultiplier Tube is a 29mm (1-1/8") diameter, 9-stage end-on photomultiplier.

The B29B07W Photomultiplier Tube has a spectral response of 200-700 nm with a wavelength of maximum response at 400 ± 50 nm.

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