The Silicon Vertex Detector of the Belle II experiment
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10457170" target="_blank" >RIV/00216208:11320/22:10457170 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11320/16:10335272 RIV/00216208:11320/22:10454502 RIV/00216208:11320/23:10475851 RIV/00216208:11320/24:10494182 RIV/00216208:11320/24:10494185
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=x3QRE.EJQW" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=x3QRE.EJQW</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nima.2022.166688" target="_blank" >10.1016/j.nima.2022.166688</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The Silicon Vertex Detector of the Belle II experiment
Popis výsledku v původním jazyce
The Silicon Vertex Detector (SVD) is a part of the vertex detector in the Belle II experiment at the SuperKEKB collider (KEK, Japan). Since the start of data taking in spring 2019, the SVD has been operating stably and reliably with a high signal-to-noise ratio and hit efficiency, achieving good spatial resolution and high track reconstruction efficiency. The hit occupancy, which mostly comes from the beam-related background, is currently about 0.5% in the innermost layer, causing no impact on the SVD performance. In anticipation of the operation at higher luminosity in the following years, two strategies to sustain the tracking performance in future high beam background conditions have been developed and tested on data. One is to reduce the number of signal waveform samples to decrease dead time, data size, and occupancy. The other is to utilize the good hit-time resolution to reject the beam background hits. We also measured the radiation effects on the full depletion voltage, sensor current, and strip noise caused during the first two and a half years of operation. The results show no detrimental effect on the SVD performance.
Název v anglickém jazyce
The Silicon Vertex Detector of the Belle II experiment
Popis výsledku anglicky
The Silicon Vertex Detector (SVD) is a part of the vertex detector in the Belle II experiment at the SuperKEKB collider (KEK, Japan). Since the start of data taking in spring 2019, the SVD has been operating stably and reliably with a high signal-to-noise ratio and hit efficiency, achieving good spatial resolution and high track reconstruction efficiency. The hit occupancy, which mostly comes from the beam-related background, is currently about 0.5% in the innermost layer, causing no impact on the SVD performance. In anticipation of the operation at higher luminosity in the following years, two strategies to sustain the tracking performance in future high beam background conditions have been developed and tested on data. One is to reduce the number of signal waveform samples to decrease dead time, data size, and occupancy. The other is to utilize the good hit-time resolution to reject the beam background hits. We also measured the radiation effects on the full depletion voltage, sensor current, and strip noise caused during the first two and a half years of operation. The results show no detrimental effect on the SVD performance.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10300 - Physical sciences
Návaznosti výsledku
Projekt
<a href="/cs/project/GA22-18469S" target="_blank" >GA22-18469S: Studium jevů za Standardním modelem ve flavor sektoru na experimentu Belle II</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
ISSN
0168-9002
e-ISSN
1872-9576
Svazek periodika
1033
Číslo periodika v rámci svazku
2022
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
5
Strana od-do
166688
Kód UT WoS článku
001257091700001
EID výsledku v databázi Scopus
2-s2.0-85129552019