Alpha calibration of the Timepix pixel detector exploiting energy information gained from a common electrode signal

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F19%3A43955477" target="_blank" >RIV/49777513:23220/19:43955477 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21670/19:00337763

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1748-0221/14/06/C06022/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1748-0221/14/06/C06022/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1748-0221/14/06/C06022" target="_blank" >10.1088/1748-0221/14/06/C06022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Alpha calibration of the Timepix pixel detector exploiting energy information gained from a common electrode signal

Popis výsledku v původním jazyce

An alternative calibration method of pixel detector Timepix has been developed. Unlike a standard per-pixel calibration method where just single pixel tracks of low energy gammas and X-rays are used as an input, the new method is based on the evaluation of charge distribution within multi-pixel tracks of energetic alpha particles. The new method gets practicable if energy of interacting alpha particles is precisely known. The Timepix pixel detector allows a simultaneous run of measurement in the pixel part as well as in the common electrode when a specialized read-out interface FITPix COMBO is used. The common electrode, opposite one to the pixel electrode, provides a natural sum of energy of all affected pixels among which the particle deposited charge has been shared. The distribution of energy between pixels belonging into alpha tracks has been evaluated and dependency between partial energy and time over threshold value counted in individual pixels has been solved. Knowing the energy dependency, it is possible to form a matrix of calibration parameters. The method has been proved for alpha particles of energies in range of 4784 to 7886 keV. The energy resolution of the pixel detector after calibration is comparable to the resolution of common electrode signal.

Název v anglickém jazyce

Alpha calibration of the Timepix pixel detector exploiting energy information gained from a common electrode signal

Popis výsledku anglicky

An alternative calibration method of pixel detector Timepix has been developed. Unlike a standard per-pixel calibration method where just single pixel tracks of low energy gammas and X-rays are used as an input, the new method is based on the evaluation of charge distribution within multi-pixel tracks of energetic alpha particles. The new method gets practicable if energy of interacting alpha particles is precisely known. The Timepix pixel detector allows a simultaneous run of measurement in the pixel part as well as in the common electrode when a specialized read-out interface FITPix COMBO is used. The common electrode, opposite one to the pixel electrode, provides a natural sum of energy of all affected pixels among which the particle deposited charge has been shared. The distribution of energy between pixels belonging into alpha tracks has been evaluated and dependency between partial energy and time over threshold value counted in individual pixels has been solved. Knowing the energy dependency, it is possible to form a matrix of calibration parameters. The method has been proved for alpha particles of energies in range of 4784 to 7886 keV. The energy resolution of the pixel detector after calibration is comparable to the resolution of common electrode signal.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2019

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

—

Svazek periodika

14

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

0-9

Kód UT WoS článku

000473565600001

EID výsledku v databázi Scopus

2-s2.0-85069614387