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Characterisation of irradiated thin silicon sensors for the CMS phase II pixel upgrade


Amsler, C; Bösiger, K; Caminada, L; Canelli, F; Chiochia, V; de Cosa, A; Galloni, C; Hreus, T; Kilminster, B; Lange, C; Maier, R; Ngadiuba, J; Pinna, D; Robmann, P; Taroni, S; Yang, Y; et al (2017). Characterisation of irradiated thin silicon sensors for the CMS phase II pixel upgrade. European Physical Journal C - Particles and Fields, 77(8):567.

Abstract

The high luminosity upgrade of the Large Hadron Collider, foreseen for 2026, necessitates the replacement of the CMS experiment’s silicon tracker. The innermost layer of the new pixel detector will be exposed to severe radiation, corresponding to a 1 MeV neutron equivalent fluence of up to $\Phi_{eq} = 2 \times 10^{16} cm^{−2}$, and an ionising dose of $\approx$ 5 MGy after an integrated luminosity of 3000 fb$^{−1}$. Thin, planar silicon sensors are good candidates for this application, since the degradation of the signal produced by traversing particles is less severe than for thicker devices. In this paper, the results obtained from the characterisation of 100 and 200 $\mu$m thick p-bulk pad diodes and strip sensors irradiated up to fluences of $\Phi_{eq} = 1.3 \times 10^{16} cm^{−2}$ are shown.

Abstract

The high luminosity upgrade of the Large Hadron Collider, foreseen for 2026, necessitates the replacement of the CMS experiment’s silicon tracker. The innermost layer of the new pixel detector will be exposed to severe radiation, corresponding to a 1 MeV neutron equivalent fluence of up to $\Phi_{eq} = 2 \times 10^{16} cm^{−2}$, and an ionising dose of $\approx$ 5 MGy after an integrated luminosity of 3000 fb$^{−1}$. Thin, planar silicon sensors are good candidates for this application, since the degradation of the signal produced by traversing particles is less severe than for thicker devices. In this paper, the results obtained from the characterisation of 100 and 200 $\mu$m thick p-bulk pad diodes and strip sensors irradiated up to fluences of $\Phi_{eq} = 1.3 \times 10^{16} cm^{−2}$ are shown.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2017
Deposited On:15 Feb 2018 13:25
Last Modified:20 Feb 2018 08:43
Publisher:Springer
ISSN:1434-6044
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1140/epjc/s10052-017-5115-z

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