Self-circulating Tritium Target System Based on Proton Conductor Ceramic Membrane

Abstract

The invention discloses a proton conductor ceramic membrane-based self-loop tritium target system which is mainly suitable for a deuterium and tritium fusion neutron generator. In the proton conductor ceramic membrane-based self-loop tritium target system, a proton conductor ceramic membrane is used as a core part of a tritium target, and the proton conductor ceramic membrane consists of a compact oxide ceramic solid electrolyte and two porous electrodes. A self-loop process comprises the following steps: tritiated water is ionized into tritium ions on an anode via an external power source, and the tritium ions are reduced into tritium atoms and subjected to deuterium and tritium fusion due to bombardment of a deuterium beam after spreading in the porous anodes and migrating to a cathode. Tritium which does not participate in a fusion reaction are oxidized into the tritiated water via a purifying system, and the tritiated water is recycled back to the anode and reused after being collected. Via the proton conductor ceramic membrane-based self-loop tritium target system, operating temperature of the tritium target can be improved to 800 DEG C and 1000 DEG C, cyclic utilization of tritium is realized, and a utilization rate of tritium can be greatly increased.

Description

technical field [0001] The invention relates to the technical field of a self-circulating tritium target system, in particular to a self-circulating tritium target system based on a proton conductor ceramic membrane, which is mainly used in the tritium target system of a deuterium-tritium fusion neutron generator. Background technique [0002] As an important neutron source, the deuterium-tritium fusion reaction 14.1MeV neutron generator can be used in various aspects such as nuclear data measurement, radiation damage research of fusion reactor materials, semiconductor nuclear resistance reinforcement, radiation breeding, and cancer treatment. Tritium target system is the key technology of this neutron generator. Tritium targets currently used are generally made of titanium materials that absorb gaseous tritium to make tritium-titanium targets. During use, due to the bombardment of the deuterium ion current, the heat flux is as high as kW / cm 2 The order of magnitude requir...

AI Technical Summary

Problems solved by technology

However, there are many problems in the currently used tritium-titanium target: (1) The apparent decomposition temperature of the tritium-titanium formed by tritium adsorption on the titanium film is 343°C. When the temperature reaches 343°C, a large amount of tritium in it begins to be released

(2) The production process of the target must be contained in a highly sealed container, otherwise it is difficult to protect the gaseous tritium; (3) When the tritium target fails, the tritium in which the D-T reaction occurs is almost negligible, and the tritium in the tritium target The actual utilization rate is less than 0.5%; (4) Only 20% of the tritium that has not participated in the reaction enters the tritium purification system, and the remaining 80% of the tritium remains in the tritium target and cannot be used

The above reasons cause the tritium titanium target to be expensive and have a short life

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