H7422P Series

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Overview of H7422P Series

GaAsP and GaAs detectors

  • Timing resolution < 140 ps
  • Quantum Efficiency up to 43% (cathode dependent)
  • Wavelength range: two models covering from 300 nm to 890 nm
  • Thermoelectrically cooled
  • Internal High voltage power supply
  • Gain control though Unit M700

Product Specifications for H7422P Series

Graph of Quantum Efficiency of Various H7422P models vs. Wavelength

ISS part no. M730 M731
Photocathode material GaAsP GaAs
Wavelength range (nm) 300 - 720 380 - 890
Peak sensitivity wavelength 580 800
Quantum efficiency 40% @ 580 nm 12% @ 800 nm
Dark counts (c/s @ T=30) < 100 < 150
Effective area diameter (mm) 5 5
Transit Time Spread (FWHM, typ. Value) 170 ps 200 ps
Rise time (ns) 0.780
Max Count rate > 10 MHz

Signal Output

Polarity
  • Negative
Connector
  • BNC-R
Impedance
  • 50 Ω

Power Supply

Power requirements (from M700 module)
  • ±  2 V; Peltier element: 0.5 – 1.0 A
Max Current Consumption (mA)
  • 62

Dimensions

Cathode diameter (mm)
  • 5
Housing (mm)
  • 115 (L) x 56 (W) x 36 (H)
Weight (kg)
  • 0.4

Measurements for H7422P Series

Time-Resolved Fluorescence
 
Fluorescence Lifetime Imaging (FLIM)
 
Phosphorescence Lifetime Imaging (PLIM)
 
Foerster Resonance Energy Transfer (FRET)
 
Fluorescence Fluctuation Spectroscopy
 
Dynamic Polarization
 
Particle counting