GB466249A - X-ray film assembly - Google Patents
X-ray film assemblyInfo
- Publication number
- GB466249A GB466249A GB27496/36A GB2749636A GB466249A GB 466249 A GB466249 A GB 466249A GB 27496/36 A GB27496/36 A GB 27496/36A GB 2749636 A GB2749636 A GB 2749636A GB 466249 A GB466249 A GB 466249A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grain
- foil
- size
- oct
- foils
- 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
- 239000011888 foil Substances 0.000 abstract 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 2
- 229910052791 calcium Inorganic materials 0.000 abstract 2
- 239000011575 calcium Substances 0.000 abstract 2
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 abstract 2
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000002601 radiography Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/16—X-ray, infrared, or ultraviolet ray processes
- G03C5/17—X-ray, infrared, or ultraviolet ray processes using screens to intensify X-ray images
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Luminescent Compositions (AREA)
- Conversion Of X-Rays Into Visible Images (AREA)
Abstract
466,249. Intensifying screens for radiography. KALI-CHEMIE AKT.-GES. Oct. 9, 1936, No. 27496. Convention date, Oct. 9, 1935. [Class 98 (i)] In an assembly comprising two fluorescent foils one on each side of a photographic film, the fluorescent material on the rear foil is entirely, or on the average, of finer grain than that on the front foil. The rear foil may contain grains as coarse as, or even coarser than those of the front film provided that they are mixed with sufficient finer grains to reduce the average grain size below that of the front foil. In an example using calcium tungstate, the front foil has a grain-size from 3 to 5Á, and the rear foil consists of a portion of the same grain-size mixed with an equal portion of grain-size 0À5 to 1Á. Reference is made to foils of calcium tungstate of different thickness or in different states of crystallization.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE466249X | 1935-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB466249A true GB466249A (en) | 1937-05-25 |
Family
ID=6540513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27496/36A Expired GB466249A (en) | 1935-10-09 | 1936-10-09 | X-ray film assembly |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB466249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0384634A2 (en) * | 1989-02-23 | 1990-08-29 | Eastman Kodak Company | Radiographic screen/film assemblies with improved detection quantum efficiencies |
-
1936
- 1936-10-09 GB GB27496/36A patent/GB466249A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0384634A2 (en) * | 1989-02-23 | 1990-08-29 | Eastman Kodak Company | Radiographic screen/film assemblies with improved detection quantum efficiencies |
| EP0384634A3 (en) * | 1989-02-23 | 1990-11-07 | Eastman Kodak Company | Radiographic screen/film assemblies with improved detection quantum efficiencies |
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