A pixelated silicon telescope for solid state microdosimetry

Abstract A solid state microdosimeter consisting of a matrix of cylindrical Δ E elements of micrometric size implanted on a single E stage is discussed in this work. This detector was constructed in order to minimize some discrepancies found when comparing the distribution of energy imparted per event of a single Δ E -stage telescope with the one measured by a cylindrical tissue-equivalent proportional counter (TEPC). These discrepancies were ascribed to geometrical effects related to the wide sensitive area (1 mm2) of the single Δ E -stage telescope. Preliminary irradiations with mono-energetic neutrons showed a better agreement between the spectra measured with the new telescope and the TEPC. The improvement of the procedures adopted for correcting the spectra for tissue equivalence and for the effects due to the track distribution is also discussed

New silicon microdosimeter production based on improved monolithic silicon telescope technology

In the framework of developing instrumentation aimed at measuring radiation quality, a new production of improved silicon microdosimeters based on the Monolithic Silicon Telescope (MST) technology has been recently finalized. Reduced dead layer, high fluence rate capability and better chord length distribution have been obtained thorough modified process and design. Electrical and functional tests have been successfully completed and are presented

Performance and perspectives of silicon detector telescopes

A new concept of monolithic silicon telescope sensitive to the position is studied along with an integrated front-end electronics

Imaging monolithic silicon detector telescopes

We show the results of some test beams performed on a new monolithic strip silicon detector telescope developed in collaboration with the INFN and ST-microelectronics. Using an appropriate design, the induction on the DE stages, generated by the charge released in the E stage, was used to obtain the position of the detected particle. The position measurement, together with the low threshold for particle charge identification, allows the new detector to be used for a large variety of applications due to its sensitivity of only a few microns measured in both directions

Monolithic silicon telescope as position sensitive detector

We show the possibility to use a new kind of monolithic silicon telescope as position sensitive detector