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Microstructured Semiconductor Neutron Detector (MSND®)
Solid-State Neutron Detection Applications

Neutron detector applications include those for homeland security (e.g., border screening), fundamental research (e.g., neutron scattering beamlines), and industrial monitoring (e.g., personnel monitoring, water content in soil). Solid-state neutron detectors provide an alternative to the 3He-based detectors, maintaining a high thermal-neutron detection efficiency, at a fraction of the volume, mass, voltage, and power required from gas or liquid detectors. Recommend AC coupling to electronic readout circuit.

Microstructured Semiconductor Neutron Detector (MSND®)

The MSND® technology implements Li6 conversion to yield a thermal neutron detection efficiency of 30%. Optimum HDPE moderator for Cf252 neutron source at 1-m is 3-4 cm in front and 3-6 cm behind the MSND® sensor.


  • Surface mount ceramic package
  • Nickel Silver RF integrated shielding
  • Thin form factor
  • Dimensions: 12.6 x 12.6 x 2.4 mm
  • 20-30% thermal neutron efficiency
  • Low power
  • Low voltage
  • Solid State
  • 1 cm² active area
‡US Patents 6,545,281, 7,164,138, & 8,778,715
Serving the External Dosimetry, Radiation Detection, and Spectroscopy communities since 2012.
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