Active Personal Eye Lens Dosimetry With the Hybrid Pixelated Dosepix Detector
- NázevTitle
- Active Personal Eye Lens Dosimetry With the Hybrid Pixelated Dosepix DetectorActive Personal Eye Lens Dosimetry With the Hybrid Pixelated Dosepix Detector
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- F. Beiser, D. Haag, R. Ballabriga, R. Behrens, L. Tlustos
- Klíčová slovaKeywords
- Lenses, detector, Phantoms, Photonics, Dosimetry, radiation detector, Biomedical applications of radiation, Active personal dosemeter, Dosepix, dosimetry for interventional procedures, dosimetry for radiation-based medical applications
- DOIDOI
- 10.1109/TRPMS.2023.3301503
- Časopis / citaceJournal / citation
- IEEE Transactions on Radiation and Plasma Medical Sciences 7(8), 879-887 (2023) · ISSN 2469-7311
- RokYear
- 2023
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
- CitovánoCited by
- 1 (OpenAlex)
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
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.
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.