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

• Published in: The European physical journal. C, Particles and fields Vol. 77; no. 8; pp. 1 - 13
• Main Authors: Hrubec, J., Steininger, H., Clerbaux, B., Léonard, A., Vanlaer, P., Van Parijs, I., Bruno, G., Musich, M., Szilasi, N., Eerola, P., Contardo, D., Gallbit, G., Hosselet, J., Tromson, D., Autermann, C., Klein, K., Preuten, M., Schomakers, C., Kuensken, A., Stahl, A., Aldaya, M., Contreras-Campana, C., Garay Garcia, J., Hansen, K., Maser, H., Mittag, G., Pitzl, D., Garutti, E., Hoffmann, M., Klanner, R., Lapsien, T., Schleper, P., Schmidt, A., Sonneveld, J., Barth, Ch, Colombo, F., Dierlamm, A., Freund, B., Heindl, S., Muller, Th, Weber, M., Paspalaki, L., Siklér, F., De Palma, M., Franco, M., Cappello, G., Chiorboli, M., Pedrini, D., Traversi, G., Manoni, E., Arezzini, S., Boccali, T., Ciampa, A., Lomtadze, T., Tonelli, G., Pacher, L., Solano, A., Gill, K., Marconi, S., Mersi, S., Moll, M., Pavis, S., Petrucciani, G., Troska, J., Meinhard, M., Hreus, T., Taroni, S., Erdmann, W., Langenegger, U., Meier, B., Lu, R.-S., Moya, M., Morton, A., Bainbridge, R., Nelson, J., Ricci-Tam, F., Gerosa, R., Bartek, R., Jensen, F., Burkett, K., Gingu, C., Hrycyk, M., Lipton, R., Spiegel, L., Uplegger, L., Voirin, E., Evdokimov, A., Makauda, S., Stupak, J., Fehling, D., Acosta, J. G., Oliveros, S., Osherson, M., Malik, S., Godshalk, A., Chaves, J., Thom, J., Zientek, M., Betchart, B., Petrillo, G.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 22-08-2017; Springer; Springer Nature B.V
• Subjects: Astronomy; Astrophysics and Cosmology; Diodes; Elementary Particles; Hadrons; Heavy Ions; INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Large Hadron Collider; Luminosity; Measurement Science and Instrumentation; Nuclear Energy; Nuclear Physics; Particle accelerators; Physics; Physics and Astronomy; Pixels; Quantum Field Theories; Quantum Field Theory; Regular Article - Experimental Physics; Sensors; Silicon; Solenoids; String Theory
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-017-5115-z

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
Φ
e
q
=
2
×
10
16
 cm
-
2
, and an ionising dose of
≈
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 
μ
m thick p-bulk pad diodes and strip sensors irradiated up to fluences of
Φ
e
q
=
1.3
×
10
16
 cm
-
2
are shown.