Recent Results from Beam Tests of the ALPIDE Pixel Chip for the Upgrade of the ALICE Inner Tracker

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00522009" target="_blank" >RIV/61389005:_____/19:00522009 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/TNS.2019.2945234" target="_blank" >https://doi.org/10.1109/TNS.2019.2945234</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TNS.2019.2945234" target="_blank" >10.1109/TNS.2019.2945234</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Recent Results from Beam Tests of the ALPIDE Pixel Chip for the Upgrade of the ALICE Inner Tracker

Popis výsledku v původním jazyce

The planned upgrade of the A Large Ion Collider Experiment (ALICE) inner tracking system (ITS) aims at improving the ALICE performance in terms of spatial resolution and data rate readout. The new ITS will be a low-material-budget, high-granularity detector. It comprises seven concentric layers of monolithic active pixel sensors (MAPS), called ALPIDE, which are based on the TowerJazz 180-nm CMOS technology. In this article, we report on detection performance and radiation hardness studies of ALPIDE sensors. We show that these sensors keep having high detection efficiency for minimum ionizing particles (MIPs) (>99%) and low fake-hit rate while being radiation hard to some { 1.7} times { 10}^{ 13},,1 MeV text{n}-{text {eq}} cm-2 of nonionizing energy loss (NIEL) and 2.7 Mrad of total ionization dose (TID), which exceeds the expected radiation load during the detector lifetime ten times. ALPIDE sensors thus completely fulfill the design requirements. In addition, we show that measured cluster shape frequencies obtained at different operating points (thresholds, bias voltages) are well described with the state-of-the-art ALICE Monte Carlo simulation.

Název v anglickém jazyce

Recent Results from Beam Tests of the ALPIDE Pixel Chip for the Upgrade of the ALICE Inner Tracker

Popis výsledku anglicky

The planned upgrade of the A Large Ion Collider Experiment (ALICE) inner tracking system (ITS) aims at improving the ALICE performance in terms of spatial resolution and data rate readout. The new ITS will be a low-material-budget, high-granularity detector. It comprises seven concentric layers of monolithic active pixel sensors (MAPS), called ALPIDE, which are based on the TowerJazz 180-nm CMOS technology. In this article, we report on detection performance and radiation hardness studies of ALPIDE sensors. We show that these sensors keep having high detection efficiency for minimum ionizing particles (MIPs) (>99%) and low fake-hit rate while being radiation hard to some { 1.7} times { 10}^{ 13},,1 MeV text{n}-{text {eq}} cm-2 of nonionizing energy loss (NIEL) and 2.7 Mrad of total ionization dose (TID), which exceeds the expected radiation load during the detector lifetime ten times. ALPIDE sensors thus completely fulfill the design requirements. In addition, we show that measured cluster shape frequencies obtained at different operating points (thresholds, bias voltages) are well described with the state-of-the-art ALICE Monte Carlo simulation.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

IEEE Transactions on Nuclear Science

ISSN

0018-9499

e-ISSN

—

Svazek periodika

66

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

2319-2323

Kód UT WoS článku

000516580100004

EID výsledku v databázi Scopus

2-s2.0-85075710246