Improved irradiator for radiation diffusion tomodensitometer and tomodensitometer comprising these irradiators
Description
The description is given of an irradiator for the line by line examination of slices of a body to be examined. This appliance includes a radioactive source housed in a protection block absorbing the ionizing radiations, except along a direction defining each line of examination. This protection block which for this purpose comprises an internal collimation aperture is characterized in that the radioactive source is housed in a source holder located in the protection block and can be moved in the protection block by means of controls so as to have at least two positions: a so called ''active'' first position in which the source is aligned with the internal collimation aperture of the protection block and a so called ''obturated'' second position where the source is no longer aligned with the internal collimation aperture
Availability note (English)
Available from Institut National de la Propriete Industrielle, Paris (France).Abstract (French)
On decrit un irradiateur pour l'examen ligne par ligne, de sections d'un corps a examiner qui comporte une source radioactive logee dans un bloc de protection absorbant les rayonnements ionisants, sauf le long d'une direction definissant chaque ligne d'examen, le bloc de protection qui, comporte pour cela, un trou de collimation interne, est caracterise en ce que la source radioactive est logee dans un porte-source dispose dans le bloc de protection, ce porte-source etant susceptible de se deplacer dans le bloc de protection sous l'action de moyens de commandes de maniere a avoir au moins deux positions: une premiere position dite ''active'' dans laquelle la source est alignee avec le trou de collimation interne du bloc de protection, et une deuxieme position dite ''obturee'' dans laquelle la source n'est plus alignee avec le trou de collimation interneAdditional details
Additional titles
- Original title (French)
- Irradiateur perfectionne pour tomodensitometre a diffusion de rayonnement et tomodensitometre comportant de tels irradiateurs
Publishing Information
- Imprint Pagination
- 19 p.
- IPC:
- Int. Cl. G01n23/20.
- IPC
- Int. Cl. G01n23/20.
- Patent number
- FR patent document 2486242/A/
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 13714257
- Subject category
- S62: RADIOLOGY AND NUCLEAR MEDICINE;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- COLLIMATORS; TOMOGRAPHY
- Descriptors DEC
- DIAGNOSTIC TECHNIQUES