DH_3_BI Bi-Alkali End-Window Photocathode (200-600nm)

  • DH_3_BI KCs bi-alkali detector 200-600nm
  • DH_3_BI KCs bi-alkali detector connectors

Housing a end-window bi-alkali (KCs photocathode) photomultiplier tube, a mu-metal shield and a PCB based dynode chain, reliable operation and excellent linearity can be ensured. The 415 high voltage supply module maintains the photocathode at a negative high voltage. The 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_BI 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

Photocathode

KCs

Active area

20mm diameter

Window material

Fused silica

Number dynodes

10

Dynode chain resistance

Linear: 750 kΩ

Pulse Counting: 3.92 MΩ

Operating mode

Photoemmisive

Spectral response range

200-600nm

Peak wavelength (typ.)

350nm

Dark current (typ.)

50pA at 750V

NEP

1 x 10-16 W.Hz-1/2

Max. high voltage

2000V DC

Max. anode current

100μA

Max. operating Temperature

-30 to +60°C

Mechanical

Connector

BNC/HV-BNC

Compatibility

Supplied with an interface plate, 4 x M3 clearance holes (Bentham slit pattern)

Dimensions

 

Ordering Information

DH_3_BI

End-window bi-alkali photomultiplier detector

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