"If you think imaging neutron detectors are either bulky, slow or noisy, it's time to change your mind:
We offer a flexible single-event counting solution, based on neutron sensitive microchannel-plates with a large selection of active areas."
ADVANTAGES
Our demountable neutron detector product family is designed for scientists with the most demanding cold and thermal neutron imaging and timing applications. Highly user-friendly or “Plug-and-Play”, it comes as a complete turnkey neutron detection/imaging solution capable of extremely fast time-tagging of individual neutron events (~0.1 µs to 1 µs timing resolution) with excellent spatial resolution of ~50 µm or better. The system includes power supply, software, and firmware for displaying images in various data display configurations. There is nothing comparable available anywhere on the market for neutron researchers.
High Thermal Neutron Detection Efficiency of 50 %
Signal-to-Noise Ratio up to 100,000 : 1
High Spatial Resolution Layouts, down to < 50 µm,
2 Megapixel Format
True Neutron Counting Imaging
Several Trigger Modes for Tomography
Portable, Compact Systems
Ultra High Time Resolutions down to below 1 ns
Electronics and Software included, Plug-and-Play
Large Active Areas up to 150mm
Plug-and-Play Convenience
Andreas Oelsner, CEO Surface Concept GmbH
TM
High Sensitivity of up to 80% for Ultracold Neutrons
PRINCIPLE OF OPERATION
TMTM
This combination allows complete flexibility in mounting the MCP neutron detector onto a vacuum chamber or evacuated neutron beamline. If preferred, an actively pumped detector with neutron-transparent front flange-mounted window for stand-alone operation can be provided.
Direct single neutron pulse counting operation is possible with the integrated Surface Concept delay line electronic readout, an exceptionally user-friendly readout allowing ~50 µm spatial and 100 ns (0.1 µs) timing resolution simultaneously – a unique and extremely powerful combination, unable to be matched by any other type of single unit neutron detector.
Neutron
10
Demountable/Open Face Layout
Time Resolving in the
Nanosecond Range
RESULTS
Neutron radiography of a wrist watch taken at UMass-Lowell’s pool-type reactor running at 500kW.
Neutron radiography of a three-way, four pole toggle switch, taken at UMass-Lowell’s pool-type reactor running at 500kW.
APPLICATIONS
Many nuclear engineering programs have ongoing research oriented towards measurements with neutrons. Some examples of university and national laboratory research with neutron radiography and scattering include:
COMPARISON TO OTHER DETECTOR TECHNIQUES
Detection Efficiencies for thermal, cold and ultra-cold neutrons are superior to other detection principles:
Wavelength/
Energy
Demountables +
NeuViewTM MCP
Scintillators (Li-6 based) + CCD
QE * at
0,9 Å (thermal/epi)
1-2 Å (thermal)
5 Å (cold)
30 Å (very cold)
~20%
~40% (static or dynamic)
~70%
~80%
~5%
~10% (static), <0,1% (dynamic/gating)
~25% (static)
~30% (static)
Spatial Resolution
Temporal Resolution
Gamma Ray Sensitivity
~50µm **
~100ns
~1% (<10-6 ***)
>200µm
~100ms (ungated),
~1µs (gated)
* Quantum efficiency is a function of neutron energy and operating conditions.
** Dependent upon neutron beam dispersion and readout selected. Current best achieved resolution: 36 µm FWHM.
*** All-electronic gamma rejection option (proprietary): Gamma sensitivity <10-6 (gamma/neutron QDE) while preserving
High thermal neutron sensitivity, available late 2017
MORE INFORMATION
This technology is covered under patents held by NOVA Scientific Inc. For more information click here.
G.W. Fraser, J.F. Pearson, W.B. Feller, L.M. Cook, "Thermal Neutron Imaging Using Microchannel Plates",Proc. SPIE 1737 (1992) 298. DOI
R.G. Downing, W.B. Feller, and P.L White, “High-Resolution Neutron Imaging with Microchannel Plates,” SPIE, Denver, CO. 23 July 1999.
W.B Feller, R.G. Downing, and P.L White, “High-Resolution Imaging with Microchannel Plates,” Nuclear Materials: Nuclear Methods in Materials Research-I, pp.103-104(1999) American Nuclear Society, Boston, MA
A.S Tremsin and W.B. Feller, "Efficiency Optimization of Microchannel Plate (MCP) Neutron Imaging Detectors. I. Square Channels with 10B Doping," Nuclear Instruments and Methods in Physics Research, A 539 (2005) 278-311. DOI
A.S. Tremsin and W.B. Feller, "High Efficiency Thermal Neutron Imaging with Sub-microsecond Timing Resolution", IEEE-Nuclear Science Conference, San Diego, November 2006. DOI
A.S. Tremsin and W.B. Feller, "The Theory of Compact and Efficient Circular-pore MCP Neutron Collimators," Nuclear Instruments and Methods in Physics Research A 556 (2006) 556–564. DOI
A.S. Tremsin, E. H. Lehmann, N. Kardjilov, M. Strobl, J. B. McPhate, J. V. Vallerga, O. H. W. Siegmund, W.B. Feller, "Refraction Contrast Imaging and Edge Effects in Neutron Radiography", Journal of Instrumentation 7 (2012) C02047 DOI
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A product combining the power of
Surface Concept GmbH
Am Sägewerk 23a
55124 Mainz
Germany
phone: +49 6131 62716 0
fax: +49 6131 62716 29
NOVA Scientific Inc.
10 Picker Rd
Sturbridge, MA 01566
USA
phone: +1 508 347 7679
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