#Domino™ Neutron Detector
Solid-State Neutron Detection Applications
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.
The detector utilizes microstructured semiconductor
neutron detector (MSND®) technology‡ with 6Li
conversion to yield a thermal neutron detection efficiency
of 30%. Optimum HDPE moderator for 252Cf neutron
source at 1-m is 3-4 cm in front and 3-6 cm behind the
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 cm^2 detection area, 20% - 30% thermal neutron detection efficiency, <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.
Detector Area: 4 cm^2 Pulse width: 5-50 μs
Εthermal : 30(±1)%@ 20°C γ-reject: 1:10^7
εCf-252: 0.04%(no mod) Mass: 9.5 grams
εCf-252: ~0.1%(1in.3 mod) Pileup limit: <33 kcps
Icont: 290 μA Rad Hard: <10^10 Rads/s
Vinput: 2.9-5.5 V Stackable: yes
Voutput: 2.7 V (≥1kΩ) Tileable: yes, 1-D
Built in temperature sensor
Sensitivity to Ambient Light : No
Temp. Range: -40°C to 55°C
Connector: Samtec (2mm Center)
• TMM-110-01-L-S-RA-007 (male)
• SQT-110-01-L-S-RA-007 (socket)
Domino Cutaway View (simulated)
‡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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