Multi-channel sample changer

A multi-channel, sample transfer technology, applied in the direction of instruments, scientific instruments, measuring devices, etc., can solve the problems of complex structure, difficult control method, high equipment cost, etc., and achieve small volume, easy control method and low cost Effect

Active Publication Date: 2013-10-09
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
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Problems solved by technology

[0004] In order to solve the existing problems of the existing automatic sample changer for neutron activation analysis, such as complex struct

Method used

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  • Multi-channel sample changer

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Embodiment

[0015] A multi-channel sample changer, comprising a bracket 1, a sample transfer tube 2, a cylinder 3, a driving device 4, and a rabbit mouthpiece 5, two or more of the rabbit mouthpieces 5 are fixed on the side of the bracket 1 On the same side, a through hole is provided on the bracket 1 corresponding to the running rabbit interface tube 5; the sample transfer tube 2 is located on the other side of the bracket 1 and the opening end faces the bracket 1, and the bottom end of the sample transfer tube 2 is provided with a vent hole, and the bottom end Connected with the cylinder 3, the longitudinal movement is realized through the control of the cylinder 3; the sample transfer tube 2 is also connected with the driving device 4, and the lateral movement is realized through the control of the driving device 4; under the coordinated control of the cylinder 3 and the driving device 4, the sample The transfer tube 2 can be moved to each through hole of the bracket 1 to realize the co...

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Abstract

The invention relates to a sample changer for irradiated samples. Aiming at solving the problems of complex structure, high equipment cost and difficulty in mastering a control method of an existing automatic sample changer for neutron activation analysis, the invention provides a multi-channel sample changer. The multi-channel sample changer comprises a bracket, a sample transfer tube, an air cylinder, a driving device and two or more rabbit interface tubes fixed on the same side of the bracket, wherein the sample transfer tube is positioned on the other side of the bracket and realizes the longitudinal movement through the control of the air cylinder and the horizontal movement through the control of the driving device, and under the collaborative control of the air cylinder and the driving device, the sample transfer tube can move to all through holes of the bracket to be communicated with the rabbit interface tubes. The multi-channel sample changer provided by the invention is small in size, simple and compact in structure, low in cost, and easy to maintain, the control method is easy to master, and the automation of sample irradiation, cooling and measurement in a neutron activation analysis process can be realized.

Description

technical field [0001] The invention relates to a sample changer for irradiated samples, in particular to a multi-channel sample changer. Background technique [0002] Neutron activation analysis is a highly sensitive trace element analysis method. This method uses reactor neutrons to react with the sample to activate the sample, and measures the radioactivity of the activated sample to achieve quantitative analysis of the elements contained in the sample. In the process of neutron activation analysis, the sample is first sent to the reactor for irradiation, cooled after irradiation, sent to the detector for measurement, and then sent to the radioactive storage tank for storage after measurement. [0003] In the neutron activation analysis system, to realize the irradiation, cooling and measurement of the sample, and to meet the requirements of radiation protection, etc., it is necessary to use an automatic sample changing device to complete. At present, the automatic samp...

Claims

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Application Information

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IPC IPC(8): G01N23/222
Inventor 肖才锦倪邦发王平生张贵英袁国军金象春
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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