GB1477638A - Radiographic combination - Google Patents
Radiographic combinationInfo
- Publication number
- GB1477638A GB1477638A GB2818374A GB2818374A GB1477638A GB 1477638 A GB1477638 A GB 1477638A GB 2818374 A GB2818374 A GB 2818374A GB 2818374 A GB2818374 A GB 2818374A GB 1477638 A GB1477638 A GB 1477638A
- Authority
- GB
- United Kingdom
- Prior art keywords
- emulsion
- dye
- screens
- rays
- light
- 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
- 239000000839 emulsion Substances 0.000 abstract 8
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 abstract 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 2
- 229910021607 Silver chloride Inorganic materials 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 abstract 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 150000004989 p-phenylenediamines Chemical class 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 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
Abstract
1477638 X-ray intensifying screens AGFAGEVAEKT 7 Aug 1974 [25 June 1974] 28183/74 Heading H5R The rapid non-darkroom processing advantages of fine-grain low Ag halide emulsions, to gells with adequate sensitivity to X-rays are achieved by combining a fast AgBr-AgI emulsion with a slow fine grain AgCl dye-coupled emulsion giving a cyan image on development, the film being single or double sided and intensified by single or double separate or integral intensifying screens, fluorescing strongly between 400 and 500 nm wavelength, comprising LaOCI and/or LaOBr phosphors with halogens near stoichiometric, activated by rare earths. The developed image in silver and dye is viewed in red or yellow light. In an example, an AgBr with 9% molar AgI) emulsion combined with equimolar AgCl finer grain emulsion is formed with an α-naphthol or a phenolic dye coupler having two NHR groups in p-positions, the Rs being carboxylic or sulphonic acid acyl groups, optionally substituted, coated on both sides of a polymer support at a total of 6 g.Ag per m.<SP>2</SP> it is exposed to X-rays between screens comprising LaOBr with 0À002 Tb<SP>3+</SP> and 0À0005 Yb (to reduce after-glow) molar proportions in 82À1% w./w. emulsion applied to a polymer support at 350 g./m.<SP>2</SP> of the phosphor. The developing bath in addition to black and white developer includes a colour developer such as a p-phenylenediamine derivative. To prevent cross-over blurring (light from screen reaching opposite emulsion) the emulsion support or a layer on it may contain a dye to transmit not more than 30% of 400-500 nm light, removed or decolorized by the processing baths. On test with 80 kV X-rays filtered through 6 mm. Al, with a pb test grid the embodiment was faster and showed higher resolution than the same sensitive material with prior art screens (phosphorus Eu-activated BaSO 4 -SrSO 4 and CaWO 4 respectively). Reference is made to Specification 1,477,639.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AR25551274A AR204100A1 (en) | 1973-09-06 | 1974-01-01 | PHOTOSENSITIVE MATERIAL SUITABLE FOR PHOTOGRAPHIC RECORDS |
| GB2818374A GB1477638A (en) | 1974-08-07 | 1974-08-07 | Radiographic combination |
| IT8628274A IT1024499B (en) | 1973-09-06 | 1974-08-31 | PHOTOSENSITIVE COMBINATION OF ELEMENTS SUITABLE FOR RADIOGRAPHIC ISO |
| JP10178074A JPS5073627A (en) | 1973-09-06 | 1974-09-03 | |
| CA208,612A CA1038682A (en) | 1974-08-07 | 1974-09-06 | Radiographic combination |
| ES429831A ES429831A1 (en) | 1973-09-06 | 1974-09-06 | A procedure for the preparation of a radiography. (Machine-translation by Google Translate, not legally binding) |
| BE1006528A BE826743A (en) | 1974-08-07 | 1975-03-17 | COMBINATION OF PHOTO-SENSITIVE ELEMENTS FOR USE IN RADIOGRAPHY |
| FR7509027A FR2276614B1 (en) | 1974-08-07 | 1975-03-20 | COMBINATION OF PHOTOSENSITIVE ELEMENTS USED IN RADIOGRAPHY |
| DE19752521975 DE2521975A1 (en) | 1974-08-07 | 1975-05-16 | COMBINATION OF LIGHT SENSITIVE ELEMENTS FOR USE IN RADIOGRAPHY |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2818374A GB1477638A (en) | 1974-08-07 | 1974-08-07 | Radiographic combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1477638A true GB1477638A (en) | 1977-06-22 |
Family
ID=10271602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2818374A Expired GB1477638A (en) | 1973-09-06 | 1974-08-07 | Radiographic combination |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE826743A (en) |
| CA (1) | CA1038682A (en) |
| DE (1) | DE2521975A1 (en) |
| FR (1) | FR2276614B1 (en) |
| GB (1) | GB1477638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4803150A (en) * | 1986-12-23 | 1989-02-07 | Eastman Kodak Company | Radiographic element exhibiting reduced crossover |
| US4900652A (en) * | 1987-07-13 | 1990-02-13 | Eastman Kodak Company | Radiographic element |
-
1974
- 1974-08-07 GB GB2818374A patent/GB1477638A/en not_active Expired
- 1974-09-06 CA CA208,612A patent/CA1038682A/en not_active Expired
-
1975
- 1975-03-17 BE BE1006528A patent/BE826743A/en unknown
- 1975-03-20 FR FR7509027A patent/FR2276614B1/en not_active Expired
- 1975-05-16 DE DE19752521975 patent/DE2521975A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4803150A (en) * | 1986-12-23 | 1989-02-07 | Eastman Kodak Company | Radiographic element exhibiting reduced crossover |
| US4900652A (en) * | 1987-07-13 | 1990-02-13 | Eastman Kodak Company | Radiographic element |
Also Published As
| Publication number | Publication date |
|---|---|
| BE826743A (en) | 1975-09-17 |
| FR2276614B1 (en) | 1977-04-15 |
| DE2521975A1 (en) | 1976-01-08 |
| CA1038682A (en) | 1978-09-19 |
| FR2276614A1 (en) | 1976-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |