First tests of Timepix detectors based on semi-insulating GaAs matrix of different pixel size
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F18%3A00319853" target="_blank" >RIV/68407700:21670/18:00319853 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/article/10.1088/1748-0221/13/02/C02013/" target="_blank" >http://iopscience.iop.org/article/10.1088/1748-0221/13/02/C02013/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/13/02/C02013" target="_blank" >10.1088/1748-0221/13/02/C02013</a>
Alternative languages
Result language
angličtina
Original language name
First tests of Timepix detectors based on semi-insulating GaAs matrix of different pixel size
Original language description
In this work, we have focused on Timepix detectors coupled with the semi-insulating GaAs material sensor. We used undoped bulk GaAs material with the thickness of 350 mu m. We prepared and tested four pixelated detectors with 165 mu m and 220 mu m pixel size with two versions of technology preparation, without and with wet chemically etched trenches around each pixel. We have carried out adjustment of GaAs Timepix detectors to optimize their performance. The energy calibration of one GaAs Timepix detector in Time-over-threshold mode was performed with the use of Am-241 and Ba-133 radioisotopes. We were able to detect gamma-photons with the energy up to 160 keV. The X-ray imaging quality of GaAs Timepix detector was tested with X-ray source using various samples. After flat field we obtained very promising imaging performance of tested GaAs Timepix detectors.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/EF16_013%2F0001785" target="_blank" >EF16_013/0001785: Van de Graaff Accelerator - a Tunable Source of Monoenergetic Neutrons and Light Ions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Instrumentation
ISSN
1748-0221
e-ISSN
1748-0221
Volume of the periodical
13
Issue of the periodical within the volume
February
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
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UT code for WoS article
000424627200003
EID of the result in the Scopus database
2-s2.0-85043477632