Speaker
Description
3D diamond detectors constitute a promising design to improve the radiation hardness of the already radiation hard diamond detectors. This geometry is achieved by graphitising column-like electrodes inside the diamond bulk. The fabrication process is performed using a femto-second laser. In this work we show a systematic study of the characteristics of the electrodes fabricated in two CVD diamond samples (single and poly-crystalline), such as cross-section, graphitic content from Raman spectroscopy and resistivity, as a function of laser pulse energy, processing speed and beam polarisation.
Finally, the recent results of the development of a sensor characterisation set-up for diamond detectors via multi-photon absorption transient current technique is discussed.
