Commissariat a L'energie Atomique

Jean-Louis Gerstenmayer

Claude Hennion

Serge Maitrejean

Pascal DeSaute

Irène Dorion

Jean-Michel Nunzi

A detector of radiation uses a composite material, and process manufactures the detector. The detector includes layers () of a semiconducting composite material including a host matrix made of a polymer and semiconducting-type guest particles dispersed through the host matrix, means () for creating an electric field in the layers, and a stack of sheets () of a first material emitting particles by interaction with the radiation, the layers alternating with the sheets, each of the layers being associated with one of the sheets, the stack having opposite faces, each containing the edges of the sheets and layers. The means for creating includes, for each layer, a group of parallel and conductive tracks () which extend from one face to the other, parallel to this layer, and which are in contact with it.

Radiation detector using a composite material and method for making same

Two-dimensional detector of ionizing radiation and process for manufacturing this detector This detector comprises sheets () emitting particles by interaction with ionizing radiation, semiconducting layers () that alternate with the sheets and can be ionized by the particles, and groups of conducting tracks () in contact with the layers. Means () of creating an electric field are used to collect charge carriers generated in the layers due to interaction with particles, through the tracks. For example, the layer and the corresponding tracks are formed on each sheet and the sheets are then assembled together. For example, the invention is applicable to radiography and can achieve good X-ray detection efficiency and high spatial resolution at the same time.

Two-dimensional detector of ionizing radiation and method for making same

A two-dimensional detector of ionizing radiation and a process for manufacturing the detector. The detector includes sheets emitting particles by interaction with ionizing radiation, semiconducting layers that alternate with the sheets and can be ionized by the particles, and groups of conducting tracks in contact with the layers. A created electric field is used to collect charge carriers generated in the layers due to interaction with particles, through the tracks. For example, the layer and the corresponding tracks are formed on each sheet and the sheets are then assembled together. The detector, as an example, is applicable to radiography and can achieve good X-ray detection efficiency and high spatial resolution at the same time.

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Orsay, France

Jean-Louis Gerstenmayer