Neutron generation equipment, neutron imaging equipment and imaging method

Abstract

The invention discloses neutron generation equipment, neutron imaging equipment and an imaging method. The equipment comprises neutron generation equipment, a neutron detector, a data acquisition circuit and data processing equipment, wherein the neutron generation equipment is used for generating continuous energy spectrum neutron beams; the neutron detector is used for receiving neutron beams which penetrate through a checked object and used for obtaining electric signals; the data acquisition circuit is coupled with the neutron detector and is used for converting the electric signals into digital signals; the data processing equipment is coupled with the data acquisition circuit and used for obtaining images of the checked object in different energy spectrum neutrons on the basis of the digital signals. By adopting the scheme, the continuous energy spectrum neutron beams can be generated, so that images of the checked object in different energy neutrons can be obtained by using a time-of-flight method, and the detection sensitivity can be improved.

Description

technical field [0001] The present disclosure relates to a neutron source, in particular to a device for generating partial-energy neutrons and a method for imaging using the generated partial-energy neutrons. Background technique [0002] Neutron imaging technology is an important non-destructive testing technology, which can play a huge role in the detection of hollow turbine blades of aero-engines and the water distribution of fuel cells. In order to realize neutron imaging, an intense neutron source with a high neutron yield is required. [0003] At present, the common high-current neutron sources are reactor and spallation source neutron sources, which have high neutron yield and high neutron fluence rate, but the construction cost of such sources is very high (~1 billion yuan) , cannot be built in general scientific research and production units, and the operating cost is high, and the beam time is precious, so it is difficult to meet the needs of general scientific r...

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Problems solved by technology

[0003] At present, the common high-current neutron sources are reactor and spallation source neutron sources, which have high neutron yield and high neutron fluence rate, but the construction cost of such sources is very high (~1 billion yuan) , cannot be built in general scientific research and production units, and the operating cost is high, the beam time is precious, it is difficult to meet the needs of general scientific research or production units, or units that require confidentiality of the analyzed samples

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