CVD diamond electronic devices and detectors

This research group at ISC, Montelibretti (Rome) has been working since early 90s to the design and development of CVD diamond devices and dosimeters. In the frame of FP5 the group led the “Material Engineering of CVD diamond: defect tailoring for optimised tissue equivalent linear radiotherapy dosimetry and other passive electronic applications”, Project. It was aimed at producing prototypes of dosimeters suitable to work under clinical conditions for radiotherapy, with a performance comparable to the best pre-selected natural diamond-based sensors, very rare and expensive. Tissue equivalence and high radiation hardness are the main diamond properties while low noise, linear response to the dose and dose-rate for beams of 8 Gy/min, response independent of temperature and beam angle, were the main project outputs. Following those outstanding results, new interesting research activities are now going on:
  1. Soft X ray detectors exploiting the electron emission properties without any polarization need.
  2. Conversion of radioactive sources into electric power, with an energy conversion efficiency of 1%.
  3. Ionising radiation detectors, working in a photo-luminescence mode, with very high radiation resistance and hardness, to be used for harsh environments (nuclear power plant, radioactive wastes, contaminated soils, etc…).
The current collaborations with the University of Roma Tre, the Karolinska Institutet of Stockolm, the Eurorad of Strasburg, the IMM-CNR of Bologna, the Technion Institute of Haifa and the General Physics Institute of Moscow bring together the various abilities for the production of electronic devices characterised by original design and high performance.

 

Persona di contatto: 
Dr.sa  Emilia Cappelli