FR2448750A1 - Dispositif electronique de compensation de defauts de linearite - Google Patents
Dispositif electronique de compensation de defauts de lineariteInfo
- Publication number
- FR2448750A1 FR2448750A1 FR7903359A FR7903359A FR2448750A1 FR 2448750 A1 FR2448750 A1 FR 2448750A1 FR 7903359 A FR7903359 A FR 7903359A FR 7903359 A FR7903359 A FR 7903359A FR 2448750 A1 FR2448750 A1 FR 2448750A1
- Authority
- FR
- France
- Prior art keywords
- quadripole
- compensation
- output
- camera
- electronic device
- 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.)
- Granted
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
- G01T1/1642—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using a scintillation crystal and position sensing photodetector arrays, e.g. ANGER cameras
Abstract
DISPOSITIF DE COMPENSATION DES DEFAUTS DE LINEARITE QUI AFFECTENT, EN SORTIE D'UNE CAMERA DE GAMMAGRAPHIE, LES SIGNAUX U, U CORRESPONDANT AUX COORDONNEES X, Y DES INTERACTIONS ENTRE RAYONS GAMMA ET SCINTILLATEUR. CE DISPOSITIF COMPREND UN QUADRIPOLE 13 DE SIMULATION DE LA CAMERA, A DEUX ENTREES V, W ET DEUX SORTIES U, U, ET DEUX AMPLIFICATEURS DIFFERENTIELS 11 ET 12 EN PARALLELE. LA FONCTION DE TRANSFERT DU QUADRIPOLE 13 EST IDENTIQUE A CELLE DE LA CAMERA. L'AMPLIFICATEUR 11 RECOIT U ET U SUR SES ENTREES POSITIVE ET NEGATIVE RESPECTIVEMENT ET DELIVRE EN SORTIE LE SIGNAL V D'ENTREE DU QUADRIPOLE. L'AMPLIFICATEUR 12 RECOIT U ET U SUR SES ENTREES POSITIVE ET NEGATIVE RESPECTIVEMENT ET DELIVRE EN SORTIE LE SIGNAL W D'ENTREE DU QUADRIPOLE. CES SIGNAUX V ET W SONT PROPORTIONNELS AUX COORDONNEES X, Y ET NE SONT DONC PLUS AFFECTES DE DEFAUTS DE LINEARITE. APPLICATION : RECHERCHE DE DIAGNOSTIC EN MEDECINE NUCLEAIRE.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7903359A FR2448750A1 (fr) | 1979-02-09 | 1979-02-09 | Dispositif electronique de compensation de defauts de linearite |
DE19803003609 DE3003609A1 (de) | 1979-02-09 | 1980-02-01 | Elektronische anordnung zum ausgleichen von linearitaetsfehlern |
NL8000706A NL8000706A (nl) | 1979-02-09 | 1980-02-05 | Electronische inrichting voor het compenseren van lineariteitsfouten. |
GB8004063A GB2043391A (en) | 1979-02-09 | 1980-02-07 | Electronic device for compensating non-linearity in a gamma camera output |
JP1379080A JPS55110976A (en) | 1979-02-09 | 1980-02-08 | Linear error compensation electronic device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7903359A FR2448750A1 (fr) | 1979-02-09 | 1979-02-09 | Dispositif electronique de compensation de defauts de linearite |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2448750A1 true FR2448750A1 (fr) | 1980-09-05 |
FR2448750B1 FR2448750B1 (fr) | 1983-09-23 |
Family
ID=9221800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7903359A Granted FR2448750A1 (fr) | 1979-02-09 | 1979-02-09 | Dispositif electronique de compensation de defauts de linearite |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS55110976A (fr) |
DE (1) | DE3003609A1 (fr) |
FR (1) | FR2448750A1 (fr) |
GB (1) | GB2043391A (fr) |
NL (1) | NL8000706A (fr) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3725806A (en) * | 1972-06-09 | 1973-04-03 | Bell Telephone Labor Inc | Distortion reduction in a repeatered transmission system |
US3745345A (en) * | 1971-11-09 | 1973-07-10 | Nuclear Chicago Corp | Radiation imaging device |
US3752981A (en) * | 1972-03-10 | 1973-08-14 | Searle & Co | Scintillation camera with improved resolution |
FR2189755A1 (fr) * | 1972-06-16 | 1974-01-25 | Picker France | |
FR2275065A1 (fr) * | 1974-06-11 | 1976-01-09 | Lgt Lab Gen Telecomm | Dispositif amplificateur linearise par correction automatique |
US4132958A (en) * | 1977-10-31 | 1979-01-02 | Tektronix, Inc. | Feedbeside correction circuit for an amplifier |
-
1979
- 1979-02-09 FR FR7903359A patent/FR2448750A1/fr active Granted
-
1980
- 1980-02-01 DE DE19803003609 patent/DE3003609A1/de not_active Withdrawn
- 1980-02-05 NL NL8000706A patent/NL8000706A/nl not_active Application Discontinuation
- 1980-02-07 GB GB8004063A patent/GB2043391A/en not_active Withdrawn
- 1980-02-08 JP JP1379080A patent/JPS55110976A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3745345A (en) * | 1971-11-09 | 1973-07-10 | Nuclear Chicago Corp | Radiation imaging device |
US3752981A (en) * | 1972-03-10 | 1973-08-14 | Searle & Co | Scintillation camera with improved resolution |
US3725806A (en) * | 1972-06-09 | 1973-04-03 | Bell Telephone Labor Inc | Distortion reduction in a repeatered transmission system |
FR2189755A1 (fr) * | 1972-06-16 | 1974-01-25 | Picker France | |
FR2275065A1 (fr) * | 1974-06-11 | 1976-01-09 | Lgt Lab Gen Telecomm | Dispositif amplificateur linearise par correction automatique |
US4132958A (en) * | 1977-10-31 | 1979-01-02 | Tektronix, Inc. | Feedbeside correction circuit for an amplifier |
Also Published As
Publication number | Publication date |
---|---|
GB2043391A (en) | 1980-10-01 |
NL8000706A (nl) | 1980-08-12 |
JPS55110976A (en) | 1980-08-27 |
DE3003609A1 (de) | 1980-08-14 |
FR2448750B1 (fr) | 1983-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |