Mechanical device used for scanning measurement of chromatographic Gamma

A mechanical device and detector technology, applied in the field of nuclear radiation measurement, can solve problems such as not meeting the requirements of TGS measurement
CN102253401AInactive Publication Date: 2011-11-23SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2011-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a mechanical device used for scanning measurement of chromatographic Gamma. The mechanical device comprises a waste barrel rotating table, a rotating table moving assembly, a detector lifting platform assembly, a transmission source lifting platform assembly, a base, a high-purity germanium detector provided with a collimator and a transmission source provided with a shielding block, wherein the rotating table moving assembly, the detector lifting platform assembly and the transmission source platform assembly are all arranged on the base; the waste barrel rotating table, the high-purity germanium detector and the transmission source are arranged on the rotating table moving assembly, the detector lifting platform assembly and the transmission lifting platform assembly respectively; and the detector lifting platform assembly and the transmission lifting platform assembly are arranged at two sides of the waste barrel rotating table respectively. The mechanical device disclosed by the invention realizes the accurate lifting of the transmission source and the detector and rotation and translation of the waste barrel, can meet the measurement requirement when the detector and the transmission source are not positioned on the same layer under a special condition, and can ensure that the detector moves horizontally in a small range.
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Description

technical field

[0001] The invention relates to a device in the technical field of nuclear radiation measurement, in particular to a tomographic gamma scanning measurement device used in a standard 200L waste barrel of a nuclear power plant. Background technique

[0002] The rapid development of the nuclear industry and the extensive use of nuclear materials will produce a large amount of low- and medium-level radioactive waste. According to relevant national regulations, the activity of these wastes must be measured before intermediate storage, transportation, and final disposal. Due to the particularity of nuclear waste, it is difficult to measure nuclides. At present, the ideal measurement technology is non-destructive testing technology, among which gamma scanning technology is one of the most widely used detection methods for nuclear power plant barreled waste. The γ-ray scanning measurement technology determines the types and activities of radioactive elements by anal...

Claims

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