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RoentDek Handels GmbH
Im Vogelshaag 8

D-65779 Kelkheim, Germany
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RoentDek Delayline Detectors

RoentDek is the market leader for state-of-the-art delay line detectors. Time and Position of impact of both Particles and Photons can be determined simultaneously with high precision. We can also supply complete particle imaging systems and the full range of electronics needed for operation.

Electronic modules
data acquisition / signal processing


  • Fast amplifiers for analog signal processing and mixing
  • Digital processing and NIM logic modules
  • Constant Fraction Discriminator (CFD)
  • Time-to-Digital Converter (TDC) for highest count rates and fast digitizing ADCs.
  • Data acquisition and analysis software
  • NEW PRODUCTS:   RM-6 (6 channel NIM ratemeter and counter)
    and G&D2 Gate&Delay-Generator
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Momentum spectroscopy / VMI
"COLTRIMS" reaction microscopes

RoentDek COLTRIMS Imaging Microscope

Dual time-of flight spectrometer with MCP Delay-line detectors at both ends.

  • momentum spectrometer
  • supersonic gas jet system
  • vacuum system
  • data acquisition and software
  • training and support

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Particle/Photon Detectors (DLD)
MCP detectors with delay line anodes
(or TOF only)

RoentDek Delay Line Detector

  • single/multi particle detection
  • spatial resolution: better than 45 µm RMS
  • (best result: 17 µm RMS)
  • temporal resol.: better than 100 ps RMS (best result: 21 ps RMS)
  • from 25 mm up to 150 mm active diameter
  • count rate from few Hz to several MHz
  • patented "Hex" version available for improved detection of multiple particles within short time ranges (Multi-Hit with zero dead time)
  • in vacuum, bolt-on or completely encapsulated

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About us

RoentDek was founded in 1990 by a team of scientists from the Johann Wolfgang Goethe-University in Frankfurt, Germany.

Our activities are focused on the development of time and position sensitive Delay Line Detectors for the imaging of particles and photons emitted in advanced research and technology applications. We have developed unsurpassed expertise in this area which has allowed our products to make decisive impact on the leading edge of research.

RoentDek detectors are in use at institutions all over the world. Our efficient service and state-of-the-art technology at affordable prices guarantees satisfied customers.

We will be pleased to offer a solution for your specific tasks.

Many of our Delayline Detector systems are in use by scientists at major research institutions worldwide - click here to see a list with some of them.

Measurements performed with RoentDek Delayline Detector have lead to lots of scientific publications - click here for a compilation of only few of these publications.