A diamond detector of 3D architecture without any metallization is developed for spectroscopy of ionizing radiationandsingleparticlesdetection.Thecarbonelectrode system was fabricated using a femtosecond infrared laser (λ = 1,030 nm) to induce graphitization on the surface and inside 4.0 × 4.0 × 0.4 mm3 single-crystal chemical vapor deposition diamond slab, resulting in an array of 84 buried graphitepillarsof30μmdiameterformedorthogonallytothe 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.
Kononenko, T., Ralchenko, V., Bolshakov, A., Konov, V., Allegrini, P., Pacilli, M., et al. (2014). All-carbon detector with buried graphite pillars. APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING, 114(2), 297-300.
All-carbon detector with buried graphite pillars
V. Ralchenko;P. Allegrini;M. Pacilli;G. Conte;E. Spiriti
2014-01-01
Abstract
A diamond detector of 3D architecture without any metallization is developed for spectroscopy of ionizing radiationandsingleparticlesdetection.Thecarbonelectrode system was fabricated using a femtosecond infrared laser (λ = 1,030 nm) to induce graphitization on the surface and inside 4.0 × 4.0 × 0.4 mm3 single-crystal chemical vapor deposition diamond slab, resulting in an array of 84 buried graphitepillarsof30μmdiameterformedorthogonallytothe 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.
