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X-RAY SCANNER [4 records]

Record 1 - external organization data 2021-03-18

English

Subject field(s)
  • Compartment – Nomenclature 4.0
  • Museums and Heritage (General)
OBS

X-ray security scanner : an item in the "Regulative and Protective Tools and Equipment" class of the "Tools and Equipment for Science and Technology" category.

French

Domaine(s)
  • Tiroir – Nomenclature 4.0
  • Muséologie et patrimoine (Généralités)
OBS

appareil de détection à rayon X : objet de la classe «Dispositifs de protection» de la catégorie «Outillage et équipement pour les sciences et la technologie».

Spanish

Save record 1

Record 2 2012-02-29

English

Subject field(s)
  • Tomography
CONT

... the spark that ignited the widespread excitement in this field came from a commercial laboratory, EMI Ltd, in Great Britain. In 1971 they announced the development of the EMI Scanner, a symbiotic marriage of X-ray scanning and digital computer technology.

French

Domaine(s)
  • Tomographie
OBS

Appareil de tomographie axiale informatisée, mis au point par la firme EMI.

Key term(s)
  • Densitome

Spanish

Save record 2

Record 3 2005-12-15

English

Subject field(s)
  • Tomography
  • Radiotherapy
DEF

A novel treatment approach where the ring gantry irradiation geometry of a helical CT [computed tomography] scanner is combined with an intensity-modulated megavoltage x-ray fan beam.

CONT

Unlike standard radiotherapy, in which treatment is delivered through one or a few separate beams, helical tomotherapy delivers treatment with a rotating, intensity-modulated fan beam. The patient is translated through the ring of the gantry while the beam is rotated around, so that the treatment beam forms a helical shape in a similar manner to that of computed tomography (CT) scans. The ring gantry provides a stable platform to perform tomographic verification of both setup and delivered dose. ... Because of the complete freedom of helical tomotherapy to deliver treatment from all angles around the patient and with intensity modulation and inverse treatment planning, it is possible to treat highly complex and irregular target volumes while giving a low radiation dose to surrounding normal structures.

French

Domaine(s)
  • Tomographie
  • Radiothérapie
CONT

Une nouvelle technique de tomothérapie est présentement développée et sera assurément une technique d'avenir en radiothérapie; c'est la tomothérapie hélicoïdale (Hi-Art). Cette dernière utilise un déplacement de table continu pendant que la tête accélératrice tourne autour du patient. L'accélérateur bouge en même temps que le collimateur multilames qui est contrôlé par ordinateur. Le MLC [Multi Leaf Collimator - collimateur multilames] est composé de deux séries de lames qui sont soit ouvertes ou fermées complètement pour créer l'intensité modulée (IMRT) [Intensity Modulated Radiation Therapy - Intensité modulée par radiothérapie].

OBS

tomothérapie hélicoïdale : terme retenu par le réseau Entraide Traduction Santé.

Spanish

Save record 3

Record 4 1987-02-11

English

Subject field(s)
  • Air Safety
  • Airfields
CONT

Some manufacturers, such as Scanray, are developing two-beam X-ray machines. This technique improves the visibility of objects under the scanner by introducing a three-dimensional element.

French

Domaine(s)
  • Sécurité (Transport aérien)
  • Aérodromes
CONT

Certaines firmes, comme Scanray, développent des appareils à deux faisceaux de rayons X, qui donnent à l'image une troisième dimension et par conséquent facilitent l'identification des objets examinés.

Spanish

Save record 4

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