GB1402309A - Multiple extrusion of crystalline materials - Google Patents
Multiple extrusion of crystalline materialsInfo
- Publication number
- GB1402309A GB1402309A GB4034972A GB4034972A GB1402309A GB 1402309 A GB1402309 A GB 1402309A GB 4034972 A GB4034972 A GB 4034972A GB 4034972 A GB4034972 A GB 4034972A GB 1402309 A GB1402309 A GB 1402309A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extruding
- rays
- fully dense
- product
- materials
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/0009—Materials therefor
- G02F1/0018—Electro-optical materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/034—Optical devices within, or forming part of, the tube, e.g. windows, mirrors
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Crystallography & Structural Chemistry (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Measurement Of Radiation (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
1402309 Luminescent materials and uses thereof KEWANEE OIL CO 31 Aug 1972 [13 Sept 1971] 40349/72 Heading C4S [Also in Division B5] A fully dense polycrystalline body transparent to radiation from U.V. to I.R. and useful, e.g. in lasers and as a scintillation phosphor, is formed by extruding and re-extruding one or more macrocrystals of Si, Ge, or a material of the form M m X n where M is a metal, X is an anion and m and n are intergers from 1 to 6, the extrusions being carried out at below the melting point of the crystals and at a pressure sufficient to ensure a fully dense product. A melt-grown ingot is extruded twice in the same direction to form a cylindrical or square section rod, or in two directions at right angles to form a sheet which may be subsequently dished. Particular scintillation phosphors are thallium activated alkali halides and sodium activated caesium iodide. Other materials are exemplified and general references are made to applications such as in patent Specification 1,348,102. Reference is also made to scintillators coupled to photo-multipliers as for counting and in camera plates for medical use for X-ray analysis. Semi-conductor radiation devices for detection of X-rays, γ-rays and charged particles, and optical fibres are also mentioned. Extrusion temperatures and pressures and dimensions of the product are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17978771A | 1971-09-13 | 1971-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1402309A true GB1402309A (en) | 1975-08-06 |
Family
ID=22657993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4034972A Expired GB1402309A (en) | 1971-09-13 | 1972-08-31 | Multiple extrusion of crystalline materials |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS4837406A (en) |
| FR (1) | FR2152897B1 (en) |
| GB (1) | GB1402309A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439460U (en) * | 1977-08-23 | 1979-03-15 |
-
1972
- 1972-08-31 GB GB4034972A patent/GB1402309A/en not_active Expired
- 1972-09-12 JP JP9100172A patent/JPS4837406A/ja active Pending
- 1972-09-13 FR FR7232377A patent/FR2152897B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2152897A1 (en) | 1973-04-27 |
| FR2152897B1 (en) | 1977-04-01 |
| JPS4837406A (en) | 1973-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |