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A portable system has been developed for the detection of neutrons. The sensing element is a silicon radiation detector with a Boron-based converter material that detects neutrons with the 10B(n, α)7 Li reaction. The detector response has been simulated with the MCNPX Monte-Carlo software and the detector geometry has been optimized. A portable readout electronics has been built to operate the detector...
The imaging semiconductor pixel detector Timepix allows the charge collected in each of its 256??256 pixels (55 ??m pitch) to be measured. This feature makes it suitable for applications where the energy and position of incoming radiation needs to be determined. We are developing a fast neutron spectroscopy and radiography technique that is based on tracking protons recoiled by fast neutrons. The...
Most neutron detectors use some type of conversion material to convert the incident neutron into secondary charged particles, which can then be detected inside the detector bulk afterward. In this way, semiconductor detectors incorporating neutron reactive material on top of a diode substrate can be used as a neutron detector. These reactions emit charged particles and recoil nucleus with energies...
This work describes an innovative solid state device structure that leverages advanced semiconductor fabrication technology to produce an efficient device for thermal neutron detection which we have coined the ??Pillar Detector??. State-of-the-art thermal neutron detectors have shortcomings in simultaneously achieving high efficiency, low operating voltage while maintaining adequate fieldability performance...
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