“We are happy with the Domino® due to its simplicity and low-voltage handling. The small form factor allows for neutron generator applications like ours.”
– Brian Jurczyk, President / Starfire Industries LLC
Introducing the Stacked Domino, designed for applications where higher detection efficiency is essential without sacrificing compactness. By vertically stacking multiple Domino tile modules, users can scale detection area and efficiency—now achieving 50% thermal neutron efficiency—while still benefiting from the same low-power, low-voltage simplicity that makes the Domino unique. Just like the original 30% Domino, the Stacked Domino provides digital output and a scalable interface with no high voltage or pulse shaping required. Ideal for neutron handheld instruments where battery life and small size matter, portable homeland security solutions, neutron detection systems, neutron generator systems, beamline setups, and many more applications—stack more, detect more.
The detector utilizes microstructured semiconductor neutron detector (MSND) technology. The MSND technology implements 6Li conversion to yield a thermal neutron detection efficiency of up to 30% per tile. Optimum HDPE moderator for a 252Cf neutron source at 1 m is 3–4 cm in front and 3–6 cm behind the MSND sensor.
A strong demand for thin form factor neutron detectors with the flexibility to adjust available detection area has driven RDT to offer the end-to-end pluggable Domino with 4 cm2 detection area, 30% thermal neutron detection efficiency, < 0.3 mW power consumption, and digital output per module. The digital outputs of the Domino may also be tied together in the tiled format.
Electronics & Interfacing: The onboard electronics package includes a preamplifier, shaping amplifier, discriminator, analog-to-digital converter, temperature sensor and voltage regulator consuming very low power.
Stacked Domino Product Brochure
30% Domino Specification Sheet
MSND Tile Data Sheet
USB Driver Board Information (page 2 of Stacked Domino brochure)
Click here to learn more about how Starfire Industries uses the Domino.
Neutron detector applications include those for homeland security (e.g., border screening), fundamental research (e.g., at 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.
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