PartTec, Ltd. | Scintillator Neutron Detector Details and Specs

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Scintillator Neutron
Detector

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Specifications

Components of the Detector

Fiber Loom Assembly
Structural Frame
⁶LiF:ZnS/Ag Scintillator
460 Double-Clad 1 mm Diameter Wavelength-Shifting Fibers

405 nm --» 520 nm
2 layer orthogonal grid: 152 horizontal and 308 vertical fibers mounted on the loom with 2.5mm grid spacing

Boron-Aluminum Electronics Shielding Plate(s)
0.2 mm thick Reflective Back Plate
Light Tight Covers for Frame and Loom Assembly
32 Green Enhanced 1" diameter Photomultiplier Tube Assemblies
Electronics to Power Photomultiplier Tubes and Process Event Signals

Detector Performance Properties

Detection Efficiency:	75% capture efficiency for thermal neutrons
Time Resolution:	5 µsec
Maximum Count Rate:	10^5 n/s
Position Resolution:	0.5 x 2.0 cm (Adjustable)
Gamma Discrimination:	1.8 x 10-6
Power Consumption:	16 W

Overall Dimensions of the Detector

Detector Area:	0.3 m²
Width:	40.23 cm
Length:	78.48 cm
Height:	65.69 cm

Dimensions of the Fiber Loom

Width:	39.88 cm
Length:	77.72 cm
Height:	11.30 cm

Scintillator Neutron Detector Customization

The Scintillator Neutron Detector can be customized to fit your specific laboratory applications. The specifications listed were developed for the Powgen3 engineering powder diffractometer facility at the Spallation Neutron Source in Oak Ridge, Tennessee. Contact PartTec, Ltd. to speak with a senior scientist about specific customization options for your application and laboratory needs.

Large Wavelength-Shifting Detector Arrays

Individual wavelength-shifting fiber detector modules may be arranged in vertical and/or horizontal arrays covering areas of 10's of square meters. The detector electronics modules can be multiplexed to produce a contiguous large area orthogonal grid of high sensitivity neutron detection with adjustable pixel resolution. Arrays are being built for instruments like the POWGEN Powder Diffractometer instrument at the Spallation Neutron Source.