X-ray spectra emitted by the electronic brachytherapy unit Papillon 50 measured with a CdTe spectrometer

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F25%3AN0000109" target="_blank" >RIV/00177016:_____/25:N0000109 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.5114/jcb.2025.154104" target="_blank" >https://doi.org/10.5114/jcb.2025.154104</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5114/jcb.2025.154104" target="_blank" >10.5114/jcb.2025.154104</a>

Result language
angličtina
Original language name
X-ray spectra emitted by the electronic brachytherapy unit Papillon 50 measured with a CdTe spectrometer
Original language description
Purpose: The aim of this paper was to present the measured photon fluence spectra emitted by the electronic brachytherapy (eBT) unit Papillon 50. Material and methods: Spectra were collected with a compact CdTe spectrometer in air at a distance of 52 cm from the unit output window, for three different applicators attached to the unit and at several angles with respect to the beam axis. Results: The fluence spectra recorded for this device showed lower energy of the photon spectrum end-point than anticipated. The end-point energy was found to be (47.6 ±0.2) keV for the nominal high voltage bias of 50 kV set by the operator. Full-energy peaks in the spectra identified characteristic photons emitted by the rhenium anode, and by molybdenum and silver supposedly present in the inner coating of the applicators. An asymmetry in the half-value layer values of measured spectra was observed. Conclusions: The presented work provides a comprehensive dataset of photon fluence spectra for traceable dosimetry using the Papillon 50 eBT device, which is required, for example, for correcting the energy dependence of detectors or as an input for Monte Carlo calculations. Spectrometry and dose characterization studies are needed for eBT systems.
Czech name
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Czech description
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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
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project
<a href="/en/project/8B19003" target="_blank" >8B19003: Primary standards and traceable measurement methods for X-ray emitting electronic brachytherapy devices</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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