GB1533506A - Multi-detector for a transverse tomograph - Google Patents
Multi-detector for a transverse tomographInfo
- Publication number
- GB1533506A GB1533506A GB1875377A GB1875377A GB1533506A GB 1533506 A GB1533506 A GB 1533506A GB 1875377 A GB1875377 A GB 1875377A GB 1875377 A GB1875377 A GB 1875377A GB 1533506 A GB1533506 A GB 1533506A
- Authority
- GB
- United Kingdom
- Prior art keywords
- multiplier
- channels
- coated
- electron
- layer
- 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
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
- G01T1/164—Scintigraphy
- G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
- G01T1/1645—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using electron optical imaging means, e.g. image intensifier tubes, coordinate photomultiplier tubes, image converter
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Measurement Of Radiation (AREA)
Abstract
1533506 Image pick-up tubes; electron multipliers THOMSON-CSF 4 May 1977 [7 May 1976] 18753/77 Heading HID A multidetector for receiving the X-ray tomographic image from an X-ray callimator 1 includes, located within the evacuated envelope 2, which may be of metal, a scintillator layer 4, photocathode 5, multichannel electron multiplier 6, and a plurality of detectors 10 opposed to the channels of the multiplier and individually connected through the envelope to a signal processing circuit. The multiplier 6 may comprise a sequence of secondary emissive grids 16, Fig. 3, of copper/beryllium or silver/manganese alloy, divided into cells by spacers 17 coated with a resistive layer 18 of germanium, silicon, or tin oxide to form a potential distributing bridge. Alternatively, the multiplier may be formed by channels (19, Fig. 4, not shown) in an insulating plate (21), the walls of the channels being coated with a resistive, secondary electron emissive layer to form continuous dynodes; Figs. 5 and 6 (not shown) illustrate an insulating component (26) coated with layers (27 and 28) and of a shape permitting assembly together of a plurality of such components to form a complete multi-channel structure. The multiplier may also be of the reverse-biased semiconductor diode type disclosed in Specification 1,081,829.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7613844A FR2350614A1 (en) | 1976-05-07 | 1976-05-07 | MULTI-DETECTOR FOR TRANSVERSE TOMOGRAPHY RADIOGRAPHY EQUIPMENT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1533506A true GB1533506A (en) | 1978-11-29 |
Family
ID=9172862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1875377A Expired GB1533506A (en) | 1976-05-07 | 1977-05-04 | Multi-detector for a transverse tomograph |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2720543A1 (en) |
| FR (1) | FR2350614A1 (en) |
| GB (1) | GB1533506A (en) |
-
1976
- 1976-05-07 FR FR7613844A patent/FR2350614A1/en active Granted
-
1977
- 1977-05-04 GB GB1875377A patent/GB1533506A/en not_active Expired
- 1977-05-06 DE DE19772720543 patent/DE2720543A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2350614B1 (en) | 1980-02-08 |
| FR2350614A1 (en) | 1977-12-02 |
| DE2720543A1 (en) | 1977-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |