A diamond detector of 3D architecture without any metallization is developed for spectroscopy of ionizing radiation and single particles detection. The carbon electrode system was fabricated using a femtosecond IR laser (λ=1030 nm) to induce graphitization on the surface and inside 4.0×4.0×0.4 mm3 single crystal chemical vapor deposition diamond slab with the result of an array of 84 buried graphite pillars of 30 μm diameter formed orthogonally to the surface, and connected by surface graphite strips. Sensitivity to ionizing radiation with 90Sr β-source has been measured for the 3D detector, and high charge collection efficiency is demonstrated.
T., K., V., R., A., B., V., K., P., A., M., P., et al. (2014). All-carbon detector with buried graphite pillars in CVD diamond. APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING, 114(2), 297-300 [10.1007/s00339-013-8091-7].
All-carbon detector with buried graphite pillars in CVD diamond
CONTE, Gennaro
;
2014-01-01
Abstract
A diamond detector of 3D architecture without any metallization is developed for spectroscopy of ionizing radiation and single particles detection. The carbon electrode system was fabricated using a femtosecond IR laser (λ=1030 nm) to induce graphitization on the surface and inside 4.0×4.0×0.4 mm3 single crystal chemical vapor deposition diamond slab with the result of an array of 84 buried graphite pillars of 30 μm diameter formed orthogonally to the surface, and connected by surface graphite strips. Sensitivity to ionizing radiation with 90Sr β-source has been measured for the 3D detector, and high charge collection efficiency is demonstrated.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
