Prototyping of petalets for the Phase-II upgrade of the silicon strip tracking detector of the ATLAS experiment

In the high luminosity era of the Large Hadron Collider, the instantaneous luminosity is expected to reach unprecedented values, resulting in about 200 proton-proton interactions in a typical bunch crossing. To cope with the resultant increase in occupancy, bandwidth and radiation damage, the ATLAS...

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Bibliographic Details
Published in:Journal of instrumentation 2018-03, Vol.13 (3), p.T03004-T03004
Main Authors: Kuehn, S., Benítez, V., Fernández-Tejero, J., Fleta, C., Lozano, M., Ullán, M., Lacker, H., Rehnisch, L., Sperlich, D., Ariza, D., Bloch, I., Díez, S., Gregor, I., Keller, J., Lohwasser, K., Poley, L., Prahl, V., Zakharchuk, N., Hauser, M., Jakobs, K., Mahboubi, K., Mori, R., Parzefall, U., Bernabéu, J., Lacasta, C., Marco-Hernandez, R., Rodriguez, D. Rodriguez, Santoyo, D., Contell, C. Solaz, Serrano, U. Soldevila, Affolder, T., Greenall, A., Gallop, B., Phillips, P.W., Cindro, V.
Format: Article
Language:English
Subjects:
Damage detection
Large Hadron Collider
Luminosity
Modularity
Occupancy
Protons
Prototyping
Radiation damage
Sensors
Silicon
Strip
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Summary:In the high luminosity era of the Large Hadron Collider, the instantaneous luminosity is expected to reach unprecedented values, resulting in about 200 proton-proton interactions in a typical bunch crossing. To cope with the resultant increase in occupancy, bandwidth and radiation damage, the ATLAS Inner Detector will be replaced by an all-silicon system, the Inner Tracker (ITk). The ITk consists of a silicon pixel and a strip detector and exploits the concept of modularity. Prototyping and testing of various strip detector components has been carried out. This paper presents the developments and results obtained with reduced-size structures equivalent to those foreseen to be used in the forward region of the silicon strip detector. Referred to as petalets, these structures are built around a composite sandwich with embedded cooling pipes and electrical tapes for routing the signals and power. Detector modules built using electronic flex boards and silicon strip sensors are glued on both the front and back side surfaces of the carbon structure. Details are given on the assembly, testing and evaluation of several petalets. Measurement results of both mechanical and electrical quantities are shown. Moreover, an outlook is given for improved prototyping plans for large structures.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/13/03/T03004