KETEK

KETEK SiPM Technology

Silicon Photomultiplier Detector Series

Silicon Photomultipliers (SiPMs) are novel, solid state based low level light detectors. Due to their distinguished properties, especially the very high quantum efficiency compared to the established PMTs and the much higher gain compared to APDs, they are able to replace PMTs and APDs in many applications. The table below compares the main features of PMT, APD and SiPM.

PMT

Photomultiplier Tube

APD

Avalanche Photodiode

SiPM

Silicon Photomultiplier

Quantum Efficiency

25% … 40%

… 80%

… 80%

Single Photon Resolution


Operation Voltage

 1 - 3 kV

100 - 500 V

20 - 40 V

Gain

104 - 109

30 - 300 

105 - 107

Insensitivity to Magnetic Field

Miniaturization

Production Costs

Medium

Low

Low

Exceptional advantages of KETEK Silicon Photomultipliers

  • Single photon resolution
  • High photon detection efficiency
  • High gain and high signal to noise ratio
  • Very fast device with short recovery and good timing
  • Low bias voltage
  • Insensitive to magnetic fields
  • Very low nuclear counting effects
  • Very compact devices
  • Simple calibration and monitoring
  • Not damaged by day light
  • Low costs