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1AF feed liquid measuring equipment

A technology of measuring equipment and material liquid, which is applied in the field of 1AF material liquid measurement equipment, can solve the problem of unobtainable Cm244 element concentration and other problems

Inactive Publication Date: 2018-11-30
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The existing hybrid K-edge / X fluorescence technique (HKED) can be used to measure the concentration of U and Pu elements in the 1AF feed solution, but the concentration of Cm244 element cannot be obtained

Method used

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  • 1AF feed liquid measuring equipment

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Such as figure 1 As shown, a kind of 1AF material liquid measuring equipment provided by the present invention includes two parts of hybrid K boundary / X fluorescence measuring device 11 and passive neutron measuring device; the two parts of passive neutron measuring device include: measuring channel 1, Inner lead shielding body 2, polyethylene moderator 3, He3 neutron tube 4, outer lead shielding body 5, transmission device, motor, electronics system.

[0021] The passive neutron measurement device is arranged at the entrance of the measurement cavity 8 of the hybrid K-boundary / X fluorescence measurement device 11, and the measurement channel 1 of the passive neutron measurement device is connected to the measurement chamber of the hybrid K-boundary / X fluorescence measurement device 11. 8 is connected to the inlet, the measurement channel 1 is c...

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Abstract

The invention belongs to the technical field of 1AF feed liquid measurement, and particularly relates to 1AF feed liquid measurement equipment. The 1AF feed liquid measurement equipment comprises a hybrid K edge / X fluorescence measuring device, and a passive neutron measuring device is arranged at an inlet of a measuring chamber (8) of the hybrid K edge / X fluorescence measuring device. The passiveneutron measuring device includes a measuring channel (1), a plurality of He3 neutron tubes (4) and an electronic system, wherein the measuring channel (1) is connected to an inlet of the measuring chamber (8) and can pass through a 1AF feed liquid sample (6), the He3 neutron tubes (4) are arranged on the periphery of the measuring channel (1), and the electronic system is connected to the He3 neutron tubes (4). The 1AF feed liquid measurement equipment is based on an existing hybrid K edge / X fluorescence technology, by adding the neutron measuring device, the simultaneous quantitative measurement and analysis of Cm, Pu and U are realized, and a technical approach for subsequent development of the passive neutron analysis of uranium and plutonium content in waste cladding is provided.

Description

technical field [0001] The invention belongs to the technical field of 1AF feed liquid measurement, and in particular relates to a 1AF feed liquid measurement device. Background technique [0002] Spent cladding is the residue of spent fuel assemblies after shearing, acid leaching and cleaning. After the spent fuel is cooled and transported, it will enter the head-end process line of the reprocessing plant and be shelled by mechanical methods. First, the two ends of the spent fuel assembly that do not contain the fuel core are cut off and transported to a temporary storage container; then the fuel is cut into small pieces and put into an open basket, and then immersed in a solution such as nitric acid to dissolve the core , the fuel is dissolved from the shell; the solid substance after repeated leaching and cleaning is the waste cladding, and the solution after cleaning is the 1AF feed liquid. [0003] During the waste cladding measurement process, it is difficult to dire...

Claims

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Application Information

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IPC IPC(8): G01T1/167G01T3/00
CPCG01T1/167G01T3/00
Inventor 柏磊王仲奇刘晓琳邵婕文李新军
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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