Intrinsic XRF corrections in Timepix3 CdTe spectral detectors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11110%2F19%3A10396080" target="_blank" >RIV/00216208:11110/19:10396080 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ubG87Zr.Zb" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ubG87Zr.Zb</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/14/01/C01018" target="_blank" >10.1088/1748-0221/14/01/C01018</a>
Alternative languages
Result language
angličtina
Original language name
Intrinsic XRF corrections in Timepix3 CdTe spectral detectors
Original language description
One of the limitations of Hybrid Pixel Detectors (HPD) is the intrinsicX-ray fluorescence emission from the detector semiconductor sensor. These fluorescence photons cause artifacts and false peaks in the photon energy spectrum measured by the HPD. ADVAPIX-Timepix3 is an energy dispersive HPD based on a semiconductor sensor (Si/CdTe/CZT/GaAS) and readout by a Timepix3 ASIC. Timepix3 is capable of measuring simultaneous Time-Over-Threshold (Energy) and Time-of-Arrival as well as sparse readout. This allows unambiguous one-by-one photon detection where each photon measurement is assigned a time stamp. In this work, we use the time and energy information of every single photon to identify intrinsic XRF events in a Co-57 radioactive source spectrum as measured by a CdTe based detector. We compute the minimum time (ns) and space (pixels) coincidence window, between the XRF and escape photons, that is required to suppress the XRF effect. These parameters were found to be +/- 15 ns and 10 pixels (pixel size = 55 mu m) for 1mm CdTe at 3000 V/cm, 24 +/- 1 degrees C, and a flux of 1.666 x 10(3) photons/s before correction.
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
30224 - Radiology, nuclear medicine and medical imaging
Result continuities
Project
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Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2019
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
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Volume of the periodical
14
Issue of the periodical within the volume
January
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
C01018
UT code for WoS article
000456238600002
EID of the result in the Scopus database
2-s2.0-85062490009