Neutron source with gas-state target
A neutron source, gaseous technology, applied in nuclear technology and application fields, can solve the problem of low source intensity of gaseous target neutron source, and achieve the effects of increasing source intensity, avoiding energy loss and improving flow intensity
Active Publication Date: 2017-05-17
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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[0005] In view of this, the present invention provides a gaseous target neutron source to solve the problem of low source intensity of gaseous target neutron sources in the prior art
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] In the prior art, a gaseous target is used instead of a solid target. Generally, a gaseous target neutron source directly bombards gaseous tritium or deuterium in a reaction gas chamber with a deuterium beam accelerated by an accelerator to generate high-energy neutrons. Because tritium or deuterium is in a gaseous state, the beam energy can be dispersed in the entire reaction gas chamber of the gaseous target, so there is no heat dissipation problem cau...
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The invention discloses a neutron source with a gas-state target. The neutron source comprises an ion implantation system, a difference vacuum system and the gas-state target. The ion implantation system is used for generating single-beam or multi-beam parallel ion beam currents, envelope of the single-beam or multi-beam parallel ion beam currents is smaller than the inner diameter of the difference vacuum system, and the difference vacuum system is used for transmitting the ion beam currents to the gas-state target; the gas-state target comprises reaction gas, and fusion reaction is carried out on the reaction gas and the ion beam currents to generate neurons. The neutron source has the advantages that the single-beam or multi-beam parallel ion beam currents can be generated by the ion implantation system, envelope of each ion beam current is smaller than the inner diameter of the difference vacuum system, the envelope of the single-beam ion beam currents is smaller than the inner diameters of various pipelines or flanges in the difference vacuum system, energy loss due to pipe wall bombardment of the beam currents can be prevented, accordingly, the current strength of the ion beam currents of the gas-state target can be improved, and the source strength of the neutron source can be improved.
Description
technical field [0001] The invention relates to the field of nuclear technology and application, in particular to a gaseous target neutron source. Background technique [0002] The deuterium-tritium fusion neutron source uses a high-current deuterium ion beam to bombard the tritium target to generate 14MeV high-energy fusion neutrons. It can be used in research fields such as neutron physics, medical physics, radiation protection, and nuclear technology applications. It is a necessary large scientific device for applied research on nuclear technology. [0003] In the prior art, solid-state targets are usually used to form 10 11 n / s-10 13 n / s high-current deuterium-tritium fusion neutron source; but with a neutron yield of 10 14 n / s-10 15 The development of n / s ultra-high current intensity deuterium-tritium fusion neutron source, because a large amount of energy of the high-current ion beam is deposited on the target plate, the heat flux density of the target point exceed...
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Login to View More IPC IPC(8): G21G4/02
CPCG21G4/02
Inventor 吴宜灿
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI