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Detection Systems

Photomultiplier Tube of High Immunity to Magnetic Fields (tetrod)

  • Purpose: Scintillation irradiation detection in high energy physics under conditions of magnetic fields up to 1,2 T and radiation up to 1500 Gy.
  • Year of release: 2009
  • Guaranteed service life (years): 4
  • Estimated production / delivery time (months): 3
  • Flight qualification of the product: No
  • Possibility to adapt the product to customer requirements: Yes
ParameterValue
Photocathode diameter16 mm
Device diameter22,2 mm
Length46 mm
Spectral response220 ÷ 650 nm
Photocathode luminous sensitivity≥60 μA/lm
Dark current≤2 nA
Supply voltage1200 V
Photocathode quantum efficiency (λ=420)≥15 %
PhotocathodeSbKCsO
Gain under magnetic field of H=1,2T≥13

PMT-tetrode has a bialkali photocathode and two-cascade multiplication system. The input window is made of boron-silicate UV glass