Patent ID: 11914083
Assignee: INSTITUT JEAN PAOLI & IRENE CALMETTES CENTRE REGIONAL DE LUTTE CONTRE LE CANCER
Field: Environmental technology (Chemistry)
Classification: CPC G | IPC G

Claim 0:
1. A dosimeter for measuring the intensity of a primary ionizing radiation, the dosimeter comprising:
a transducer material capable, when it is excited by a secondary ionizing radiation, of generating photons or electric charges, the number of photons or of charges generated being representative of the intensity of the primary ionizing radiation,
an amplifying layer capable, in response to its excitation by the primary ionizing radiation, of generating the secondary ionizing radiation which excites the transducer material, this amplifying layer:
being deposited on the transducer material, and
being composed of at least 70%, by weight, of material, the atomic number of which is greater than or equal to 29, and

an optical fiber comprising a core capable of guiding light,, wherein:
the thickness of this amplifying layer is greater than 15 μm,
the amplifying layer comprises at least one first and one second amplifying sublayer stacked on top of one another,
the first and the second amplifying sublayers are composed of at least 70%, by weight, respectively, of at least one first and one second material, the atomic numbers of which are greater than or equal to 29, the atomic number of the first material being less than the atomic number of the second material,
the first amplifying sublayer is interposed between the second amplifying sublayer and the transducer material, and
the transducer material is a luminescent material capable, when it is excited by the secondary ionizing radiation, of generating the light guided by the core of the optical fiber.