Fabrication and Characterisation of 3D Diamond Pixel Detectors With Timing Capabilities

Year: 2020

Authors: Anderlini L., Bellini M., Bizzeti A., Cardini A., Ciaranfi R., Corsi C., Garau M., Lai A., Lagomarsino S., Lampis A., Loi A., Lucarelli C., Mariani S., Minafra N., Morozzi A., Mulargia R., Passaleva G., Passeri D., Sciortino S., Vecchi S., Veltri M.

Autors Affiliation: Ist Nazl Fis Nucl, Sez Firenze, Florence, Italy; CNR, Ist Nazl Ott, Florence, Italy; Univ Modena & Reggio Emilia, Dipartimento Sci Fis Informat & Matemat, Modena, Italy; Ist Nazl Fis Nucl, Sez Cagliari, Cagliari, Italy; Lab Europeo Spettroscopie Non Lineari, Sesto Fiorentino, Italy; Univ Cagliari, Dipartimento Fis, Cagliari, Italy; Univ Firenze, Dipartimento Fis & Astron, Florence, Italy; Univ Kansas, Dept Phys & Astron, Coll Liberal Arts & Sci, Lawrence, KS 66045 USA; Ist Nazl Fis Nucl, Sez Perugia, Perugia, Italy; Ist Nazl Fis Nucl, Sez Genova, Genoa, Italy; Univ Genoa, Dipartimento Fis, Genoa, Italy; Univ Perugia, Dipartimento Ingn, Perugia, Italy; Ist Nazl Fis Nucl, Sez Ferrara, Ferrara, Italy; Univ Urbino, Dipartimento Sci Pure & Appl, Urbino, Italy.

Abstract: Diamond sensors provide a promising radiation hard solution to the challenges posed by the future experiments at hadron machines. A 3D geometry with thin columnar resistive electrodes orthogonal to the diamond surface, obtained by laser nanofabrication, is expected to provide significantly better time resolution with respect to the extensively studied planar diamond sensors. We report on the development, production, and characterisation of innovative 3D diamond sensors achieving 30% improvement in both space and time resolution with respect to sensors from the previous generation. This is the first complete characterisation of the time resolution of 3D diamond sensors and combines results from tests with laser, beta rays and high energy particle beams. Plans and strategies for further improvement in the fabrication technology and readout systems are also discussed.

Journal/Review: FRONTIERS IN PHYSICS

Volume: 8      Pages from: 589844-1  to: 589844-17

More Information: The research described in this document was funded by INFN as part of the TimeSPOT initiative.
KeyWords: tracking; diamond; 3D; pixel; sensors; nanofabrication
DOI: 10.3389/fphy.2020.589844

Citations: 8
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