Deep sea combustible ice detecting instrument based on gamma ray Compton backscattering scanning technique
A scanning technology and a detector technology, which are applied in the field of radiation detection, can solve problems such as difficulty in adapting to combustible ice distribution detection, complex structure of the detection device, and expensive equipment, and achieve the effects of simple structure, wide detection capability and convenient operation
Inactive Publication Date: 2012-11-14
HEFEI CBS ELECTRONICS SCI TECHN
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Problems solved by technology
[0005] 1. The equipment is expensive. For example, the price of a cable-controlled robot is more than 40 million yuan per set.
[0006] 2. The structure of the whole detection device is very complicated.
[0007] 3. The detection ability is very limited, and it is difficult to adapt to the detection of the distribution characteristics of combustible ice
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[0039] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0040] Such as Figure 1~4 As shown, a deep-sea combustible ice detector based on gamma-ray Compton backscattering scanning technology includes a high-pressure cylinder 13, a detector chassis 12, a gamma-ray source system, a detection acquisition and transmission system, a multi-channel detector 5 and Multi-channel rear collimator 7, the detector case 12 is installed in the high pressure cylinder 13, the top of the detector case 12 is provided with a battery pack 10, the bottom is provided with a main mounting plate 18, the gamma ray source The system, the multi-channel detector 5 and the multi-channel rear collimator 7 are all installed on the main mounting plate 18 , and the lower end of the multi-channel rear collimator 7 is provided with a t...
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The invention discloses a deep sea combustible ice detecting instrument based on gamma ray Compton backscattering scanning technique. The deep sea combustible ice detecting instrument comprises a high-pressure-resistant tube, a detecting instrument case, a gamma-ray source system, a detecting picking transmission system, a multi-path detector as well as a multi-path rear collimator, wherein the detecting instrument case is arranged in the high-pressure-resistant tube; the top of the detecting instrument case is internally provided with a storage battery group, and the bottom of the detecting instrument case is provided with a main mounting plate; and the gamma-ray source system, the multi-path detector and the multi-path rear collimator are all arranged on the main mounting plate, and the lower end of the multi-path rear collimator is provided with a thin baseplate. The deep sea combustible ice detecting instrument disclosed by the invention is suitable for sea-bed exploration, the structure is simple, the operation is convenient, and the detectability is wide; and a technology principle adopts the Compton backscattering scanning technique based on interaction of gamma rays and substances, and whether an analyte is combustible ice can be directly, rapidly and exactly judged according to a Compton backscattering photon counting characteristic.
Description
technical field [0001] The invention relates to the technical field of radiation detection, in particular to a deep-sea combustible ice detector based on gamma ray Compton backscattering scanning technology. Background technique [0002] Combustible ice or natural gas hydrate (Natural Gas Hydrate), methane gas water clathrate, methane hydrate, methane ice, solid crystalline substance, looks very much like ice and snow or solid alcohol. Distributed in deep sea sediments or permafrost on land, its main component is methane. How can we obtain accurate data from field detection? This has become one of the difficult problems for scientists around the world to tackle key problems. [0003] Now my country has formed key detection technology systems for combustible ice with independent intellectual property rights such as high-precision seismic, in-situ and fluid geochemistry. For example, Dr. Zhang Xin from the Institute of Oceanography, Chinese Academy of Sciences, as the first...
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IPC IPC(8): G01N23/203
Inventor 余章倩丁厚本冯盼盼余章敏
Owner HEFEI CBS ELECTRONICS SCI TECHN