DH_3 Multi-Alkali Photomultiplier (200-850nm)

  • DH-3 End-window Photomultiplier tube
  • DH-3 End-window PMT S20 photocathode
  • DH-3 Photocathode Chip
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+44 118 975 1355
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Housing a end-window multi-alkali (S20 photocathode) photomultiplier tube, a mu-metal shield and a PCB based dynode chain, reliable operation and exceptional linearity can be ensured. The 215 high voltage supply module maintains the photocathode at a negative high voltage. TThe photocurrent generated by this detector is best measured using the 487 picoammeter or the 477 pre-amplifier followed by the 496 lock-in amplifier.

The mounting flange supplied with the DH_3 is compatible with the entire range of Bentham monochromators and accessories.

Core benefits

Features

  • Housed photomultiplier tube featuring mu-metal shield and PCB dynode chain
  • Operated in either the DC or AC regimes
  • Compatible with Bentham's entire range of monochromators and accessories
  • Recommended for use with 400 series detection electronics

Electro-optical

PhotocathodeS20
Active area20mm diameter
Window materialFused silica
Number dynodes10
Dynode chain resistanceLinear: 750 kΩ
Pulse Counting: 3.92 MΩ
Operating modePhotoemmisive
Spectral response range200-850nm
Peak wavelength (typ.)420 nm
Dark current (typ.)500pA at 750V
NEP1 x 10-16 W.Hz-1/2
Max. high voltage1500V DC
Max. anode current100μA
Max. operating Temperature-80 to +50°C

Mechanical

ConnectorBNC/HV-BNC
CompatibilitySupplied with an interface plate, 4 x M3 clearance holes (Bentham slit pattern)
Dimensions 
DH-3 Typical Responsivity Measurement
Typical Responsivity of DH-3 Detector

Ordering Information

DH_3_S20End-window multi-alkali photomultiplier detector

The Bentham Standard

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Call us on +44 118 975 1355 or email us