Unusual annealing of charge collection efficiency of silicon strip detectors, ATLAS18, irradiated to high fluences with 23 GeV protons

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00645411" target="_blank" >RIV/68378271:_____/25:00645411 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0375203" target="_blank" >https://hdl.handle.net/11104/0375203</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nima.2025.170682" target="_blank" >10.1016/j.nima.2025.170682</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unusual annealing of charge collection efficiency of silicon strip detectors, ATLAS18, irradiated to high fluences with 23 GeV protons

Popis výsledku v původním jazyce

Extensive studies were performed on highly irradiated ATLAS18 mini strip detectors to evaluate their annealing behaviour. Collected charge was measured after several steps of annealing at 60 degrees C. For detectors irradiated with neutrons or low energy protons the collected charge exhibited a beneficial effect of short-term annealing which was followed by a decrease in charge collection efficiency at longer annealing times. After irradiation with 23 GeV protons to fluences above Phi(eq) similar to 1.2 . 10(15) cm(-2), the collected charge remained unchanged or decreased after the first few tens of minutes of annealing. Edge-TCT measurements indicated that this unusual annealing behaviour is related to the double-peak electric field profile in the detector. Mixed irradiation with 23 GeV protons and neutrons to fluences matching the expected in the upgraded ATLAS experiment showed this unusual annealing effect will not impact the operation of the ITk strip detector.

Název v anglickém jazyce

Unusual annealing of charge collection efficiency of silicon strip detectors, ATLAS18, irradiated to high fluences with 23 GeV protons

Popis výsledku anglicky

Extensive studies were performed on highly irradiated ATLAS18 mini strip detectors to evaluate their annealing behaviour. Collected charge was measured after several steps of annealing at 60 degrees C. For detectors irradiated with neutrons or low energy protons the collected charge exhibited a beneficial effect of short-term annealing which was followed by a decrease in charge collection efficiency at longer annealing times. After irradiation with 23 GeV protons to fluences above Phi(eq) similar to 1.2 . 10(15) cm(-2), the collected charge remained unchanged or decreased after the first few tens of minutes of annealing. Edge-TCT measurements indicated that this unusual annealing behaviour is related to the double-peak electric field profile in the detector. Mixed irradiation with 23 GeV protons and neutrons to fluences matching the expected in the upgraded ATLAS experiment showed this unusual annealing effect will not impact the operation of the ITk strip detector.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field 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

2025

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

1872-9576

Svazek periodika

1080

Číslo periodika v rámci svazku

Nov

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

4

Strana od-do

170682

Kód UT WoS článku

001512942700001

EID výsledku v databázi Scopus

2-s2.0-105007765528