Commissioning of the upgraded ALICE Inner Tracking System

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00534029" target="_blank" >RIV/61389005:_____/20:00534029 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.nima.2020.164421" target="_blank" >https://doi.org/10.1016/j.nima.2020.164421</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nima.2020.164421" target="_blank" >10.1016/j.nima.2020.164421</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Commissioning of the upgraded ALICE Inner Tracking System

Popis výsledku v původním jazyce

The ALICE Inner Tracking System (ITS) detector is undergoing a major upgrade in order to cope with the increased data rates and to meet the requirements as set out by the physics goals of the experiment after the LHC Long Shutdown 2 (LS2). The new ITS will be completely made up of monolithic active pixel sensors (MAPS), called ALPIDE, based on the CMOS 180 nm process. A single sensor measures 30 mm x 15 mm and contains half a million pixels, with a pitch of 27 mu m x 29 mu m, distributed over 512 rows and 1024 columns. The ALPIDE sensors, thinned to 50 run and 100 rim for the Inner and Outer Barrels, respectively, are mounted on ultra-lightweight carbon composite support structures with an embedded cooling system. This results in a considerable reduction of the material budget and a significant improvement of the impact parameter resolution and tracking efficiency for low-transverse momentum particles. The construction of the ITS detector has been completed and the commissioning on surface is ongoing. The detector will be installed in ALICE in 2020. This paper will give a brief overview of the motivation for the upgrade and will present the first results of the detector performance obtained during the commissioning.

Název v anglickém jazyce

Commissioning of the upgraded ALICE Inner Tracking System

Popis výsledku anglicky

The ALICE Inner Tracking System (ITS) detector is undergoing a major upgrade in order to cope with the increased data rates and to meet the requirements as set out by the physics goals of the experiment after the LHC Long Shutdown 2 (LS2). The new ITS will be completely made up of monolithic active pixel sensors (MAPS), called ALPIDE, based on the CMOS 180 nm process. A single sensor measures 30 mm x 15 mm and contains half a million pixels, with a pitch of 27 mu m x 29 mu m, distributed over 512 rows and 1024 columns. The ALPIDE sensors, thinned to 50 run and 100 rim for the Inner and Outer Barrels, respectively, are mounted on ultra-lightweight carbon composite support structures with an embedded cooling system. This results in a considerable reduction of the material budget and a significant improvement of the impact parameter resolution and tracking efficiency for low-transverse momentum particles. The construction of the ITS detector has been completed and the commissioning on surface is ongoing. The detector will be installed in ALICE in 2020. This paper will give a brief overview of the motivation for the upgrade and will present the first results of the detector performance obtained during the commissioning.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Nuclear Instruments & Methods in Physics Research Section A

ISSN

0168-9002

e-ISSN

—

Svazek periodika

979

Číslo periodika v rámci svazku

NOV

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

164421

Kód UT WoS článku

000573295200011

EID výsledku v databázi Scopus

2-s2.0-85088894388