Active Personal Eye Lens Dosimetry With the Hybrid Pixelated Dosepix Detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F23%3A00373373" target="_blank" >RIV/68407700:21670/23:00373373 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/TRPMS.2023.3301503" target="_blank" >https://doi.org/10.1109/TRPMS.2023.3301503</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TRPMS.2023.3301503" target="_blank" >10.1109/TRPMS.2023.3301503</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Active Personal Eye Lens Dosimetry With the Hybrid Pixelated Dosepix Detector

Popis výsledku v původním jazyce

lens dosimetry has been an important field of research in the last decade. Dose measurements with a prototype of an active personal eye lens dosemeter based on the Dosepix detector are presented. The personal dose equivalent at 3 mm depth of soft tissue, H-p(3), was measured in the center front of a water-filled cylinder phantom with a height and diameter of 20 cm. The energy dependence of the normalized response is investigated for mean photon energies between 12.4 and 248 keV for continuous reference radiation fields (N-series) according to ISO 4037. The response normalized to N-60 (E = 47.9 keV) at 0 degrees angle of irradiation stays within the approval limits of IEC 61526 for angles of incidence between -75 degrees and +75 degrees. Performance in pulsed photon fields was tested for varying dose rates from 0.1( Sv/h) up to 1000 (Sv/h) and pulse durations from 1 ms up to 10 s. The dose measurement works well within the approval limits (acc. to IEC 61526) up to 1 (Sv/h). No significant influence of the pulse duration on the measured dose is found. Reproducibility measurements yield a coefficient of variation which does not exceed 1% for two tested eye lens dosemeter prototypes.

Název v anglickém jazyce

Active Personal Eye Lens Dosimetry With the Hybrid Pixelated Dosepix Detector

Popis výsledku anglicky

lens dosimetry has been an important field of research in the last decade. Dose measurements with a prototype of an active personal eye lens dosemeter based on the Dosepix detector are presented. The personal dose equivalent at 3 mm depth of soft tissue, H-p(3), was measured in the center front of a water-filled cylinder phantom with a height and diameter of 20 cm. The energy dependence of the normalized response is investigated for mean photon energies between 12.4 and 248 keV for continuous reference radiation fields (N-series) according to ISO 4037. The response normalized to N-60 (E = 47.9 keV) at 0 degrees angle of irradiation stays within the approval limits of IEC 61526 for angles of incidence between -75 degrees and +75 degrees. Performance in pulsed photon fields was tested for varying dose rates from 0.1( Sv/h) up to 1000 (Sv/h) and pulse durations from 1 ms up to 10 s. The dose measurement works well within the approval limits (acc. to IEC 61526) up to 1 (Sv/h). No significant influence of the pulse duration on the measured dose is found. Reproducibility measurements yield a coefficient of variation which does not exceed 1% for two tested eye lens dosemeter prototypes.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20602 - Medical laboratory technology (including laboratory samples analysis; diagnostic technologies) (Biomaterials to be 2.9 [physical characteristics of living material as related to medical implants, devices, sensors])

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

IEEE TRANSACTIONS ON RADIATION AND PLASMA MEDICAL SCIENCES

ISSN

2469-7311

e-ISSN

2469-7303

Svazek periodika

7

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

879-887

Kód UT WoS článku

001099904200011

EID výsledku v databázi Scopus

2-s2.0-85167814104