Flexible, low-power consuming and wearable radiation dosimeters for medical, industrial and environmental applications
| Patent title | Ionization sensitive field effect device and manufacturing method thereof |
|---|---|
| Thematic area | Industry, Digital and Security |
| Ownership | UNIVERSIDADE NOVA DE LISBOA, ALMA MATER STUDIORUM - UNIVERSITA' DI BOLOGNA |
| Inventors | PEDRO BARQUINHA, RODRIGO MARTINS, ELVIRA MARIA CORREIA FORTUNATO, Tobias Cramer, Beatrice Fraboni |
| Protection | China, Europe, India, Japan, South Korea, US |
| Licensing status | Available for development agreements, option, license and other exploitation agreements |
| Keywords | Dosimeter, nuclear medicine, radiation, radiotherapy, IOT sensor, RFID sensor tag |
| Filed on | 14 November 2016 |
Exposure to ionizing radiation has to be tightly controlled in radiotherapy, nuclear waste management, high-energy physics experiments, and space technology to avoid health or technical safety risks (1–4). Currently available dosimeters to measure radiation exposure have major limitations making such devices bulky and power consuming. In order to achieve a continuous monitoring of radiation dose a miniaturized, low-power and low-cost dosimeter has to be devised that is compatible with passive wireless communication.
The invention refers to innovative radiation dosimeters which are flexible, low-power consuming and wearable (i.e. thin, low weight, non-invasive and low-power operated) and represent competitive and reliable alternatives to the current technology radiation detectors. The dosimeters developed are based on innovative high conductivity metal- oxide thin film transistors, apt to cover large areas and industrially scalable.
Applications:
- Nuclear medicine and radiation therapy
- Industrial and environmental control (with test and safety purpose)
- Internet of Things for real-time monitoring of ionizing radiation either in large open space (rooms, buildings, open fields) or on specific items (food packaging, border security, gamma sterilization companies)
- Space technology to monitor radiation exposure.
With respect to current existing solutions, the dosimeter is real-time, flexible, large area, low cost, wearable/portable
T. Cramer et al., Passive radiofrequency x-ray dosimeter tag based on flexible radiation-sensitive oxide field-effect transistor, Science Advances 29 Jun 2018:Vol. 4, no. 6, eaat1825. DOI: 10.1126/sciadv.aat1825.