Performance studies of the CE-65v2 MAPS prototype structure

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Performance studies of the CE-65v2 MAPS prototype structure

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Performance studies of the CE-65v2 MAPS prototype structure

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

—

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Instrumentation

ISSN

1748-0221

e-ISSN

1748-0221

Svazek periodika

20

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

001454234600001

EID výsledku v databázi Scopus

2-s2.0-105000416461