Performance studies of the CE-65v2 MAPS prototype structure
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00390369" target="_blank" >RIV/68407700:21340/25:00390369 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1748-0221/20/03/C03033" target="_blank" >https://doi.org/10.1088/1748-0221/20/03/C03033</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/20/03/C03033" target="_blank" >10.1088/1748-0221/20/03/C03033</a>
Alternative languages
Result language
angličtina
Original language name
Performance studies of the CE-65v2 MAPS prototype structure
Original language description
With the next upgrade of the ALICE inner tracking system (ITS3) as its primary focus, a set of small MAPS test structures have been developed in the 65 nm TPSCo CMOS process. The CE-65 focuses on the characterisation of the analogue charge collection properties of this technology. The latest iteration, the CE-65v2, was produced in different processes (Standard, with a low-dose n-type blanket, and blanket with gap between pixels), pixel pitches (15, 18, 22.5 mu m) and pixel arrangements (square or staggered). The comparatively large pixel array size of 48 x 24 pixels in CE-65v2 allows the uniformity of the pixel response to be studied, among other benefits. The CE-65v2 chip was characterised in a test beam at the CERN SPS. A first analysis showed that hit efficiencies of >= 99% and spatial resolution better than 5 mu m can be achieved for all pitches and process variants. For the Standard process, thanks to larger charge sharing, even spatial resolutions below 3 mu m are reached, in line with vertex detector requirements for the FCC-ee. This contribution further investigates the data collected at the SPS test beam. Thanks to the large sensor size and efficient data collection, a large amount of statistics was collected, which allows for detailed in-pixel studies to see the efficiency and spatial resolution as a function of the hit position within the pixels. Again, different pitches and process variants are compared.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
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Continuities
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Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Instrumentation
ISSN
1748-0221
e-ISSN
1748-0221
Volume of the periodical
20
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
1-9
UT code for WoS article
001454234600001
EID of the result in the Scopus database
2-s2.0-105000416461