Neutron beamline switch and collimation installation method
An installation method and neutron beam technology are applied in the field of neutron beam line switches to achieve the effects of reducing neutron loss, easy alignment and installation, and reasonable design
Inactive Publication Date: 2015-07-29
INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
[0009] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a neutron beamline switch to solve the problem that the neutron beamline switch in the prior art cannot simultaneously take into account the relationship between the neutron beamline switch and the adjacent neutron conduit. The distance between them is better than 10mm, and there is enough lifting clearance for collimation and positioning
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[0019] Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the description in the following paragraphs. It should be understood that the present invention can have various changes in different embodiments, but none of them departs from the scope of the present invention, and the description and drawings therein are used as illustrations in nature, not to limit the present invention. invention.
[0020] The neutron beamline switch in the embodiment of the present invention is a neutron beamline switch used in the field of neutron scattering spectrometers to switch between neutron beamline on and off. The present invention adopts the broad definition of neutron beamline switch, namely The neutron beam switch includes the neutron conduits on both sides; and the collimation installation method of the embodiment of the present invention can be used between the neutron beam switch and the adjacent conduit in the embo...
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The invention discloses a neutron beam switch and a collimation mounting method. The neutron beam switch comprises a middle shell, a conduit plug component and two neutron conduits, wherein the conduit plug component is arranged in the middle shell; the two neutron conduits are connected to the two ends of the conduit plug component respectively; a shell of one neutron conduit is provided with a shell flange; one of the shell flange and the middle shell is provided with a recess, and the other one of the shell flange and the middle shell is provided with a bump; the recess and the bump have set machining accuracy; the collimation mounting of the beam switch is realized through stepped matching of the recess and the bump. The purpose of easy collimation mounting can be achieved by replacing collimation accuracy with relatively high machining and assembly accuracy which can be achieved at present.
Description
technical field [0001] The invention relates to the technical field of neutron scattering spectrometers, in particular to a neutron beamline switch for switching neutron beamlines on and off and a collimator for collimation installation between two neutron devices installation method. Background technique [0002] Neutron spectrometers are mainly used to study the structure and properties of various substances. At present, the neutron spectrometers built in various countries in the world can be divided into two categories. One is called neutron spallation source spectrometer. The neutron spallation source is Neutrons are produced based on accelerator-accelerated proton bombardment targets; the other type is called neutron reactor spectrometers, and neutron reactors are based on uranium fission to produce neutrons. The neutron beam switch is used in the neutron spectrometer to open and cut off the neutron beam. In the on state, the neutron beam is transmitted to the sample t...
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IPC IPC(8): G01N23/20
Inventor 吴延岩韩庆夫朱涛董兰
Owner INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI