Ultra-small angle neutron scattering spectrometer shielding body

Abstract

The invention discloses an ultra-small angle neutron scattering spectrometer shielding body. The ultra-small angle neutron scattering spectrometer shielding body is a combined structure type ultra-small angle neutron scattering spectrometer conduit shielding body. The ultra-small angle neutron scattering spectrometer shielding body is mainly mounted on the outer side of a neutron conduit of the ultra-small angle neutron scattering spectrometer and used for absorbing and shielding neutrons escaping from the neutron conduit, and shielding bodies can be combined, adjusted and lapped according tothe length of the neutron conduit to meet the shielding and protecting requirements of the neutron conduit with different lengths. The shielding body mainly comprises a supporting cross beam, a protective guide pipe, a concave shielding block and a stainless steel support, the supporting cross beam, the protective guide pipe and the concave shielding block are manufactured in a fixed-length mode,lap joints for preventing neutrons from escaping along gaps are designed at the two ends of the body, and multi-layer shielding protection on the neutrons is achieved through combination. The body isinstalled on the outer side of a neutron conduit in a combined mode to absorb and shield neutrons. The ultra-small-angle neutrons can better serve people, research and use personnel and the environment are prevented from being damaged by the neutrons, and the health of people is ensured.

Description

technical field [0001] The invention relates to the technical field of neutron shielding, in particular to a shielding body for an ultra-small-angle neutron scattering spectrometer. Background technique [0002] The invention of the ultra-small-angle neutron scattering spectrometer allows us to detect the micron-scale structural information inside the material, and can comprehensively measure the microstructure of the material in the nanometer to micrometer scale range. Combined with in-situ environmental loading, it can study the evolution process and law of the internal microstructure of engineering components under service conditions. These information are the basic scientific basis for developing new engineering materials and improving their service performance and reliability. The ultra-small angle neutron scattering spectrometer is one of the powerful characterization techniques in the basic research of materials science, and it is also a necessary diagnostic tool in ...

AI Technical Summary

Problems solved by technology

However, the ultra-small-angle neutron itself is electrically neutral, and directly interacts with the nucleus, and does not interact with electrons outside the nucleus. It has a strong penetrating ability and seriously harms the human body and the environment. In order to make the ultra-small-angle neutron more To serve us well, it needs to be effectively shielded. For this reason, we need to carry out convenient and fast shielding treatment on the neutrons generated in the ultra-small angle neutron scattering spectrometer and formulate a reasonable plan to reduce the economic cost, volume and weight of shielding.

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