Study of Temperature Influence on Timepix2 Energy Measurements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00388247" target="_blank" >RIV/68407700:21230/25:00388247 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21670/25:00388247

Výsledek na webu

<a href="https://doi.org/10.1088/1748-0221/20/11/C11003" target="_blank" >https://doi.org/10.1088/1748-0221/20/11/C11003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1748-0221/20/11/C11003" target="_blank" >10.1088/1748-0221/20/11/C11003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study of Temperature Influence on Timepix2 Energy Measurements

Popis výsledku v původním jazyce

In this study, we examine the temperature dependence of a Timepix2 (v1) detector (256x 256 pixels, 55 μm pixel pitch) coupled to a 500 μm thick silicon sensor. Measurements were performed with γ-photons 59.5 keV and α-particles 5.5 MeV in vacuum over a stabilized temperature range of -20 °C to 80 °C. Two different readout systems were used to verify that the response of the Timepix2 detector was not affected by the readout electronics. In both normal and adaptive gain modes, the detector demonstrated excellent stability in Time-over-Threshold (ToT) based energy measurements, with relative deviations of peak positions remaining below 4% across the temperature range from -20 °C to 80 °C. Digital-to-Analog Converter (DAC) voltage measurements revealed a significant temperature dependence of the DAC Ikrum, which compensates for threshold shifts and enables accurate ToT readings. In adaptive gain mode, a systematic shift of approximately 0.6% per 10 °C was observed in absolute ToT accuracy.

Název v anglickém jazyce

Study of Temperature Influence on Timepix2 Energy Measurements

Popis výsledku anglicky

In this study, we examine the temperature dependence of a Timepix2 (v1) detector (256x 256 pixels, 55 μm pixel pitch) coupled to a 500 μm thick silicon sensor. Measurements were performed with γ-photons 59.5 keV and α-particles 5.5 MeV in vacuum over a stabilized temperature range of -20 °C to 80 °C. Two different readout systems were used to verify that the response of the Timepix2 detector was not affected by the readout electronics. In both normal and adaptive gain modes, the detector demonstrated excellent stability in Time-over-Threshold (ToT) based energy measurements, with relative deviations of peak positions remaining below 4% across the temperature range from -20 °C to 80 °C. Digital-to-Analog Converter (DAC) voltage measurements revealed a significant temperature dependence of the DAC Ikrum, which compensates for threshold shifts and enables accurate ToT readings. In adaptive gain mode, a systematic shift of approximately 0.6% per 10 °C was observed in absolute ToT accuracy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/GM23-04869M" target="_blank" >GM23-04869M: Identifikace částic v experimentech fysiky vysokych energií a ve vesmíru s pokročilými detekčními systémy</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Instrumentation

ISSN

1748-0221

e-ISSN

1748-0221

Svazek periodika

20

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

001615483400001

EID výsledku v databázi Scopus

2-s2.0-105033813431