Direct detectors for ionizing radiations

The invention relates to organic semiconductors to be used as intrinsic, direct detectors for ionizing radiations and to a method for manufacturing such intrinsic,direct detectors for ionizing radiations.The invention also relates to instruments provided with a detector based on the above detectors.

Title of the patent Intrinsic, direct detectors for ionizing radiations, and methods for producing such detectors
Thematic area Chemistry and biotechnology
Ownership Alma Mater Studiorum - Università di Bologna and Elettra Sincrotrone Trieste SCPA
Inventors Beatrice Fraboni, Alessandro Fraleoni Morgera
Protection Europe, USA, China, Japan
Licensing status Available for licensing agreement
Keywords Organic, semiconductors, detector, ionizing radiations, alpha rays, electrons, organic crystals, 4-hydroxycyanobenze.
Filed on Aug 02, 2011

The detection of ionizing radiations is an important task in a number of technologically and socially relevant activities, spanning from microelectronics to sanitization and sterilization, from industrial quality control to the oil industry, from mining to medicine.

The invention relates to organic semiconductors to be used as intrinsic, direct detectors for ionizing radiations, such as X and gamma rays, neutrons, and charged particles (alpha rays, electrons, positrons, and the like), and to a method for manufacturing such intrinsic, direct detectors for ionizing radiations.

The invention further relates to instruments or complex devices provided with a detector based on, or somehow incorporating, organic semiconductors used as intrinsic, direct detectors for ionizing radiations.

In particular, the instruments according to the present invention are useful as X-ray detectors in medical field, for example in dentistry, medical imaging; in civil field, for example in airports, borders and in analytical techniques, or in R&D or industrial activities.

Their manufacture is simple and more economic than the inorganic intrinsic, direct detectors of the state of the art.

Moreover, their response is linear and reproducible.

They can be also endowed with anisotropic response, allowing to determine the direction of the incident radiation.

Their manufacture is simpler, since they can be solution-grown and quite advantageously on a patterned substrate, provided with the electrical circuit.

They can be transparent and flexible.

They operate in normal conditions, room temperature and atmospheric pressure.

They are long-standing devices and stable in radiation-hard environment.