Abstract
CVD Diamond Detectors are going to be used in a number of neutron diagnostics of the International Thermonuclear Experimental Reactor (ITER) during its power operation phase [1]. One of such diagnostics is the Vertical Neutron Camera (VNC), which is being developed by the ITER Russian Domestic Agency (Institution “Project Center ITER”). In VNC Diamond detectors are used for real-time neutron flux and neutron spectrum measurements. In this paper we present current advancements in the development of a digital signal processing unit for the VNC diamond detector measurement channel. We give an overview of the signal properties, hardware requirements and firmware/software solutions used in the current version of the signal processing unit. We also present preliminary test results for this measurement system and explain the discovered problems and possible solutions.
Highlights
ERTICALNeutron Camera (VNC) is a multichannelV neutron collimator intended to characterize International Thermonuclear Experimental Reactor (ITER) plasma as a fusion neutron source
An example of a CVD Diamond Detector pulse amplitude spectrum, acquired from a DT neutron generator NG24M in JSC SRC RF TRINITI, Troitsk, Russia is shown in figure 4
PCI eXtention for Instrumentation (PXIe) platform was chosen for Vertical Neutron Camera (VNC) Instrumentation and Control (I&C) system
Summary
V neutron collimator intended to characterize ITER plasma as a fusion neutron source. It measures the time resolved neutron emission profile for both Deuterium-Deuterium (DD) and Deuterium-Tritium (DT) plasmas, providing the evaluation of the neutron and α-source emissivity profile, as well as fusion power density, fusion power and total neutron flux [5]
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