Thick radiation sensitive devices

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

C09K 11/06 (2006.01) C09K 9/02 (2006.01) G01T 1/24 (2006.01) G03F 7/00 (2006.01) G03F 7/025 (2006.01)

Patent

CA 2495304

Described is radiation sensitive imaging and dosimeter composition (20) containing a radiation sensitive material (21), e.g., a diacetylene (R-C=C-C=C- R', where R and R' are substituent groups) or a radiochromic dye, a polymeric binder (22) and optionally a solvent (23) and/or an activator (24). Radiation sensitive materials are incorporated into a moldable or castable material and are molded or casted into shaped-articles (100), such as coatings, films, fiber, plaques, rods and blocks. Upon exposure to high-energy radiations, radiation sentitive material develops color thereby producing a visible image. Because of the higher thickness, a significantly lower dose of radiation can be monitored and an image is produced in three dimensions. Materials, processes and usages for thick radiation sensitive devices are described. A thick block can be used for monitoring radiation dosages in the three dimensions.

L'invention concerne une composition (20) d'imagerie et de dosimétrie sensible aux rayonnements qui contient un matériau (21) sensible aux rayonnements, par exemple un diacétylène (R-C.ident.C-C.ident.C-R', dans lequel R et R' sont des groupes de substitution) ou un colorant radiochromique, un liant polymère (22) et éventuellement un solvant (23) et/ou un activateur (24). Les matériaux sensibles aux rayonnements sont incorporés dans un matériau moulable ou coulable et sont moulés ou coulés pour former des articles (100), tels que revêtements, films, fibres, plaques, tiges et blocs. Exposé aux rayonnements à grande énergie, le matériau sensible aux rayonnements développe une couleur, produisant ainsi une image visible. Du fait de l'épaisseur plus élevée, une dose de rayonnements sensiblement inférieure peut être surveillée et on peut produire une image en trois dimensions. L'invention concerne des matériaux, des procédés et des utilisations faisant appel à des dispositifs sensibles aux rayonnements épais. Un bloc épais peut être utilisé pour surveiller les doses de rayonnements dans les trois dimensions.

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