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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Recent Results from Beam Tests of the ALPIDE Pixel Chip for the Upgrade of the ALICE Inner Tracker
Original language description
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.
Czech name
—
Czech description
—

Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)