We present a comparative characterization of the performance of a single-crystal and a polycrystalline diamond pixel-detector employing the standard CMS pixel readout chips. Measurements were carried out at the Fermilab Test Beam Facility, FTBF, using protons of momentum 120 GeV/c tracked by a high-resolution pixel telescope. Particular attention was directed to the study of the charge-collection, the charge-sharing among adjacent pixels and the achievable position resolution. The performance of the single-crystal detector was excellent and comparable to the best available silicon pixel-detectors. The measured average detection-efficiency was near unity, epsilon = 0.99860 +/- 0.00006, and the position-resolution for shared hits was about 6 mu m. On the other hand, the performance of the polycrystalline detector was hampered by its lower charge collection distance and the readout chip threshold. A new readout chip, capable of operating at much lower threshold (around 1 ke-), would be required to fully exploit the potential performance of the polycrystalline diamond pixel-detector.

Tracking performance of a single-crystal and a polycrystalline diamond pixel-detector

OBERTINO, Maria Margherita;SOLANO, Ada Maria;
2013-01-01

Abstract

We present a comparative characterization of the performance of a single-crystal and a polycrystalline diamond pixel-detector employing the standard CMS pixel readout chips. Measurements were carried out at the Fermilab Test Beam Facility, FTBF, using protons of momentum 120 GeV/c tracked by a high-resolution pixel telescope. Particular attention was directed to the study of the charge-collection, the charge-sharing among adjacent pixels and the achievable position resolution. The performance of the single-crystal detector was excellent and comparable to the best available silicon pixel-detectors. The measured average detection-efficiency was near unity, epsilon = 0.99860 +/- 0.00006, and the position-resolution for shared hits was about 6 mu m. On the other hand, the performance of the polycrystalline detector was hampered by its lower charge collection distance and the readout chip threshold. A new readout chip, capable of operating at much lower threshold (around 1 ke-), would be required to fully exploit the potential performance of the polycrystalline diamond pixel-detector.
2013
8
P06006
-
Diamond pixel detector
D. Menasce;L. Moroni;J. Ngadiuba;L. Uplegger;E. Alagoz;J. Andresen;K. Arndt;G. Bolla;D. Bortoletto;J. M. Brom;R. Brosius;M. Bubna;J. Chra...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/146230
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