Products / Neutron Diagnostics / Diamond DD-Fusion Neutron Monitor
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A9 DIAMOND DD-FUSION NEUTRON MONITOR
The DD-Neutron Counter
The Diamond DD-Fusion Neutron Monitor is designed for neutron flux monitoring in fusion reactor applications, where Deuterium-Deuterium Fusion is providing 2.45 MeV neutrons. The detector is optimised for the rejection of γ-background. The Spectroscopic Amplifier allows the installation of a coaxial cable between detector and amplifier for the operation in high-radiation environments.
The A9 Diamond DD-Fusion Neutron Monitor consists of a B7 Fast-Neutron Diamond Detector for DD-Fusion Neutrons, a Cx-L Spectroscopic Amplifier, a ROSY® real-time readout system with integrated power supply for amplifier power and detector bias. Cables and connectors of 1 m length are provided. The web-based GUI provides real-time neutron spectra and neutron rates for monitoring purposes.
The A9 Diamond DD-Fusion Neutron Monitor consists of a B7 Fast-Neutron Diamond Detector for DD-Fusion Neutrons, a Cx-L Spectroscopic Amplifier, a ROSY® real-time readout system with integrated power supply for amplifier power and detector bias. Cables and connectors of 1 m length are provided. The web-based GUI provides real-time neutron spectra and neutron rates for monitoring purposes.
The A9 provides real-time neutron spectroscopy and neutron flux monitoring for fusion reactors.
The detector can be upgraded to be high-temperature compatible.
The detector can be upgraded to be high-temperature compatible.
FEATURES
Detector type:
Fast-Neutron Diamond Detector for DD-Neutrons
Active area::
4 mm x 4 mm
Neutron energies::
> 1 MeV
Neutron detection efficiency::
0.1%
γ-suppression:
By threshold
ADDITIONAL PRODUCT INFORMATION
In DD-Fusion Plasma reactors the response function of the Diamond Fast-Neutron Detector is dominated by the elastic scattering of neutrons on the Carbon nuclei. The maximum deposited energy in the diamond sensor is below 1 MeV.
The real-time measurement of the DD-spectrum (Figure) with the ROSY® Readout System is well in accordance with Geant4 simulations.
A threshold of 0.4 MeV will effectively suppress γ-radiation. The neutron count rate can be derived from interactions above this threshold. The neutron detection efficiency can be enhanced by using a Mosaic-type detector.
The real-time measurement of the DD-spectrum (Figure) with the ROSY® Readout System is well in accordance with Geant4 simulations.
A threshold of 0.4 MeV will effectively suppress γ-radiation. The neutron count rate can be derived from interactions above this threshold. The neutron detection efficiency can be enhanced by using a Mosaic-type detector.
DOWNLOAD THE PRODUCT INFORMATION
A9 Diamond DD-Fusion Neutron Monitor
RELEVANT PROJECTS
Diamond Matrix Detector for ITER-RNC
CIVIDEC has developed the Diamond Matrix Detector for the ITER Radial Neutron Camera (RNC). The prototype, containing 12 sCVD crystals of 50 μm thickness, was successfully tested and validated by F4E. The final detectors will be equipped with 30 sCVD crystals, interconnected as two detector channels. The Diamond Matrix Detectors will measure the spectrum and flux of 2.45 MeV and 14 MeV neutrons from DD- and DT-fusion in the ITER plasma, giving information on the temperature and spatial distribution of the fusion plasma.
https://fusionforenergy.europa.eu/news/a-camera-to-see-iter-neutrons/
RELEVANT PUBLICATIONS
Fusion product diagnostics based on commercially available chemical vapor deposition diamond detector in large helical device
K. Ogawa, et al., Jinst, 18, P01022, 2023
A CVD Diamond Detector for (n,α) Cross-Section Measurements
C. Weiss, PhD Thesis, Technische Universität Wien, Faculty of Physics, 2014
Single Crystal Diamond Detector Measurements of Deuterium-Deuterium and Deuterium-Tritium Neutrons in Joint European Torus Fusion Plasmas
C.Cazzaniga, et al., Review of Scientific Instruments, 85, 043506, 2014
DOI:10.1063/1.4870584
A new CVD Diamond Mosaic-Detector for (n,α) Cross-Section Measurements at the n_TOF Experiment at CERN
C. Weiss, et al., NIMA, 732, 190-194, 2013
DOI:10.1016/j.nima.2013.07.040
Response of CVD Diamond Detectors to 14 MeV Neutrons
C. Weiss, et al., CERN-ATS-Note-2012-093 TECH, 2012