Timepix3: Temperature influence on X-ray measurements in counting mode with Si sensor  

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00346145" target="_blank" >RIV/68407700:21230/21:00346145 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.radmeas.2021.106535" target="_blank" >https://doi.org/10.1016/j.radmeas.2021.106535</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.radmeas.2021.106535" target="_blank" >10.1016/j.radmeas.2021.106535</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Timepix3: Temperature influence on X-ray measurements in counting mode with Si sensor  

Popis výsledku v původním jazyce

The Timepix3 radiation imaging and particle tracking detector is the direct successor to the Timepix semiconductor detector developed in CERN. The Timepix ASIC chip (256x256 pixels with a pitch of 55 µm provides the possibility to operate each of the 65 536 pixels in one of the following modes: (1) event counting (Medipix mode); (2) energy measurement (Time over Threshold - ToT mode); and (3) measurement of the interaction time (Time of Arrival - ToA mode). The Timepix3 chip of the new generation introduces the ability to measure ToT and ToA simultaneously and also the event-based readout where each hit pixel is read out immediately after the hit. This detector can be used in a variety fields of science including particle physics, X-ray imaging as well as medicine and space science. With regards to the wide application possibilities of this detector, we investigate the properties of the detector in the temperature range from -20 °C to +80 °C. This temperature range spans the majority of laboratory conditions as well as requirements for most of outer space missions. This paper describes thermal-vacuum testing of the most common 300 µm Si detector with AdvaPIX readout interface in the counting mode. The detector was stabilized under various thermal conditions in a thermal vacuum chamber and subsequently exposed to characteristic X-ray radiation of 5 elements in the energy range of 4{24 keV. It was found that the absolute measurement accuracy of higher energies is more affected by higher temperature (up to 0.8 keV @ 17.48 keV) and relative error of Timepix3 accuracy is inversely proportional to the incident X-ray energy. The relative precision is kept in the range of 6% for temperatures from -20 °C to +60 °C with significant change at +80 °C.

Název v anglickém jazyce

Timepix3: Temperature influence on X-ray measurements in counting mode with Si sensor  

Popis výsledku anglicky

The Timepix3 radiation imaging and particle tracking detector is the direct successor to the Timepix semiconductor detector developed in CERN. The Timepix ASIC chip (256x256 pixels with a pitch of 55 µm provides the possibility to operate each of the 65 536 pixels in one of the following modes: (1) event counting (Medipix mode); (2) energy measurement (Time over Threshold - ToT mode); and (3) measurement of the interaction time (Time of Arrival - ToA mode). The Timepix3 chip of the new generation introduces the ability to measure ToT and ToA simultaneously and also the event-based readout where each hit pixel is read out immediately after the hit. This detector can be used in a variety fields of science including particle physics, X-ray imaging as well as medicine and space science. With regards to the wide application possibilities of this detector, we investigate the properties of the detector in the temperature range from -20 °C to +80 °C. This temperature range spans the majority of laboratory conditions as well as requirements for most of outer space missions. This paper describes thermal-vacuum testing of the most common 300 µm Si detector with AdvaPIX readout interface in the counting mode. The detector was stabilized under various thermal conditions in a thermal vacuum chamber and subsequently exposed to characteristic X-ray radiation of 5 elements in the energy range of 4{24 keV. It was found that the absolute measurement accuracy of higher energies is more affected by higher temperature (up to 0.8 keV @ 17.48 keV) and relative error of Timepix3 accuracy is inversely proportional to the incident X-ray energy. The relative precision is kept in the range of 6% for temperatures from -20 °C to +60 °C with significant change at +80 °C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/GJ18-10088Y" target="_blank" >GJ18-10088Y: Vývoj algoritmů pro rentgenové monitorování oblohy s optikou Račí oko a detektorem Timepix.</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Radiation Measurements

ISSN

1350-4487

e-ISSN

1879-0925

Svazek periodika

141

Číslo periodika v rámci svazku

01

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

—

Kód UT WoS článku

000694865400006

EID výsledku v databázi Scopus

2-s2.0-85100043522