GB855886A - Improvements in x-ray diffractograph devices - Google Patents
Improvements in x-ray diffractograph devicesInfo
- Publication number
- GB855886A GB855886A GB34006/58A GB3400658A GB855886A GB 855886 A GB855886 A GB 855886A GB 34006/58 A GB34006/58 A GB 34006/58A GB 3400658 A GB3400658 A GB 3400658A GB 855886 A GB855886 A GB 855886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- specimen
- casing
- anode
- supported
- ray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/20—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
- G01N23/20008—Constructional details of analysers, e.g. characterised by X-ray source, detector or optical system; Accessories therefor; Preparing specimens therefor
- G01N23/20025—Sample holders or supports therefor
- G01N23/20033—Sample holders or supports therefor provided with temperature control or heating means
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
855,886. X-ray diffraction apparatus. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Oct. 23, 1958 [Oct. 26, 1957], No. 34006/58. Class 98(1) In an X-ray diffraction apparatus for examining a specimen at different temperatures, the specimen is supported in an evacuable chamber, and heated by means of electron bombardment of the support. In the apparatus shown, for the powder method of analysis, the specimen is in the form of a small rod 25, fixed vertically on a thin tungsten plate 24. This is supported from a few points only, so as to avoid conduction losses, on a cylinder 23 which acts as an anode co-operating with a cathode filament 29. When a potential difference of about 2500 volts is applied, the anode, and also the support plate 24 and hence the specimen 25, is rapidly heated by electron bombardment up to 2900 degrees in about 40 seconds. The anode is supported by a casing 12 secured on three pillars 10 attached to a main platform 2. Spring-loaded screws 14 on each pillar afford some lateral adjustment of the position of specimen 25. The casing 12 is so constructed that the whole anode structure, including the specimen, is rotatable on a ball-race 16, and is driven by a motor, which may be inside the vacuum chamber, at about 1 r.p.m. The apparatus is enclosed generally in an outer demountable casing built up of sections such as 48, 7, 1, bolted together. The casing may include watercooling channels 57, 58. The lowest section 1 is mounted directly on the vacuum pump (not shown) which may also serve to evacuate the X-ray tube itself (also not shown). The X-ray beam is directed through a channelled member 60 to strike the specimen, the remainder of the direct rays passing on through a further channelled member 61 into a trap 63. Surrounding the diffraction zone is a cylindrical window 36 of beryllium, through which the diffracted radiation passes to make a record on a sensitive film mounted outside the chamber. The film may be fixed, or may have a vertical movement for continuous recording. Heat radiation from the specimen may be conserved by reflection from metal mirrors 51, 54. A window 50 is provided for observation of the specimen, and determination of its temperature by an optical pyrometer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR855886X | 1957-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB855886A true GB855886A (en) | 1960-12-07 |
Family
ID=9328537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34006/58A Expired GB855886A (en) | 1957-10-26 | 1958-10-23 | Improvements in x-ray diffractograph devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB855886A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467034A (en) * | 2018-02-07 | 2018-08-31 | 中国原子能科学研究院 | A kind of novel graphite crystal derivatization device |
-
1958
- 1958-10-23 GB GB34006/58A patent/GB855886A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467034A (en) * | 2018-02-07 | 2018-08-31 | 中国原子能科学研究院 | A kind of novel graphite crystal derivatization device |
| CN108467034B (en) * | 2018-02-07 | 2024-05-14 | 中国原子能科学研究院 | Graphite crystal derivatizer |
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