Upgrade of the ALICE central barrel tracking detectors: ITS and TPC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00502263" target="_blank" >RIV/61389005:_____/19:00502263 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/19:00502263

Výsledek na webu

<a href="https://doi.org/10.1016/j.nuclphysa.2018.08.022" target="_blank" >https://doi.org/10.1016/j.nuclphysa.2018.08.022</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nuclphysa.2018.08.022" target="_blank" >10.1016/j.nuclphysa.2018.08.022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Upgrade of the ALICE central barrel tracking detectors: ITS and TPC

Popis výsledku v původním jazyce

The ALICE Collaboration will undertake a major upgrade of the detector apparatus during the second LHC Long Shutdown LS2 (2019-2020) in view of the Runs 3 and 4 (2021-2029). The objective of the upgrade is two-fold: i) an improvement of the tracking precision and efficiency, in particular in the low-momentum range. ii) an improvement of the readout capabilities of the experiment, in order to fully exploit the luminosity for heavy ions envisaged after LS2. The first goal will be achieved by replacing the Inner Tracking System with a new tracker, composed of seven layers of silicon pixel detectors. The new tracker will be made up of about 25000 Monolithic Active Pixel Sensors with fast readout, resulting in a material thickness reduced to 0.3% (inner layers) -1% (outer layers) of the radiation length and a granularity of 28 x28 mu m(2). The second goal will be achieved, among other measures, by replacing the readout chambers of the 90 m(3) Time Projection Chamber with Micro Pattern Gaseous Detectors. In particular, the new readout chambers will consist of stacks of 4 Gas Electron Multiplier foils combining different hole pitches. The upgraded detector will operate continuously without the use of a triggered gating grid. It will thus be able to record all Pb-Pb collisions at the LHC interaction rate of 50 kHz.

Název v anglickém jazyce

Upgrade of the ALICE central barrel tracking detectors: ITS and TPC

Popis výsledku anglicky

The ALICE Collaboration will undertake a major upgrade of the detector apparatus during the second LHC Long Shutdown LS2 (2019-2020) in view of the Runs 3 and 4 (2021-2029). The objective of the upgrade is two-fold: i) an improvement of the tracking precision and efficiency, in particular in the low-momentum range. ii) an improvement of the readout capabilities of the experiment, in order to fully exploit the luminosity for heavy ions envisaged after LS2. The first goal will be achieved by replacing the Inner Tracking System with a new tracker, composed of seven layers of silicon pixel detectors. The new tracker will be made up of about 25000 Monolithic Active Pixel Sensors with fast readout, resulting in a material thickness reduced to 0.3% (inner layers) -1% (outer layers) of the radiation length and a granularity of 28 x28 mu m(2). The second goal will be achieved, among other measures, by replacing the readout chambers of the 90 m(3) Time Projection Chamber with Micro Pattern Gaseous Detectors. In particular, the new readout chambers will consist of stacks of 4 Gas Electron Multiplier foils combining different hole pitches. The upgraded detector will operate continuously without the use of a triggered gating grid. It will thus be able to record all Pb-Pb collisions at the LHC interaction rate of 50 kHz.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Nuclear Physics. A

ISSN

0375-9474

e-ISSN

—

Svazek periodika

982

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

4

Strana od-do

943-946

Kód UT WoS článku

000457515500221

EID výsledku v databázi Scopus

2-s2.0-85060080291