SU1516915A1 - Attachment to x-ray spectrometer - Google Patents

Abstract

The invention relates to scientific instrumentation, in particular, to means of radiographic examination of the structure of liquid crystals. The purpose of the invention is to expand the amount of information obtained in the study of liquid crystals. The attachment contains a base 1, on which is placed the housing 2 in the form of a holder, in which the platform 3 is installed. On the platform is mounted the holder 7 of the cuvette 11 with liquid crystal materials. The cuvette 11 is located between the electrodes 8 and the heating elements 9. The thermal insulation of the holder 7 from the platform 3 is provided by inserts 4, 6 of heat-insulating material and the screen 5. It is impossible to obtain more complete information about the structure of liquid crystals. 2 Il.

Description

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the material and the screen 5. The ability of the crystal and the electric field to allow the platform 3 to get more complete information X-ray imaging and thereby change the structure of the liquid crystals. Spatial position of liquid 2 Il.

The invention relates to the field of scientific instrumentation, in particular, to means of radiographic examination of the structure of creepy crystals.

The purpose of the invention is to expand the amount of information obtained in the study of liquid crystals.

Figure 1 shows a schematic prefix, a general view; figure 2 - section aa in figure 1.

The attachment includes a base 1 with a flange in the lower part for fastening the attachment on the shaft, a housing 2 fixed to the base 1 and made in the form of an outer cage with a horizontal axis. In the casing of the housing 2 is mounted for rotation pn around the horizontal axis of the platforms; 3 coils of the form on which the isolahelio one in the other has the first heat insulating insert 4, TeiinoBOii screen 5, the second insert 6 in which the sample holder 7 is inserted between the electrodes 8, the heater 9 and the tormonar electrons; A socket is made for fastening the cuvette 1 with a liquid of JK structural metal.

In the thermal insulating inserts 4 and 6 and the screen 5 vb: the windows 12 for the peHT transit / completion are filled. - oBGKtLK rays, covered with ptri I with a transparent film material 13. On the outer side of the housing 2, a radiator 14 of the legs was installed about cooling.

The prefix works as follows.

A sample cuvette 11 is placed in a cuvette holder 7, a thermostatic system is switched on, the required thermal conditions are selected using a heat shield 5 and heating elements 9. In the case of overheating of the movable part of the attachment, a radiator 14 is used.

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Cooling down. The intensity of the electric field in the cell 11 with the liquid crystal sample is changed by changing the applied potential difference to the electrodes 8 in one way or by changing the distance between them using dielectric spacers (not shown) and selecting the sample and material of the cell 1 1 with the sample. When the required temperature is reached, a survey is carried out at a different intensity of the electric field and its direction in space, for which the rotating part is rotated around the vertical axis 90 and around the horizontal axis of the FF passing through the geometric center of the attachment.

Claims (1)

Invention Formula An attachment to an X-ray spectrometer, comprising a base with a flange for fastening the attachment to the shaft of a goniometric device with a vertical axis of rotation, a housing made as an outer cage and provided with electrodes, heating means and temperature-sensitive elements, and a cell holder for a liquid-crystal sample; rotated inside the cage, characterized in that, in order to expand the amount of information received, the prefix is equipped with a platform installed in the outer cage for rotation around a horizontal axis and carrying a successively placed heat shield, heat insulating insert with windows for entry and exit of x-ray radiation and the sample holder, which is enclosed between the electrodes, the heater and the temperature-sensitive elements.