On the Possibility of Using Medical Linear Electron Accelerators as a Source of the Reference Pulsed Photon Radiation Field
Sources of pulsed photon radiation are widely used in science and industry. In this regard, there is a growing demand for dosimetry instruments capable of operating in these pulsed photon radiation fields. Until now there is no comprehensive methodology that describes the characteristics of referenc...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Belarusian National Technical University
2023-10-01
|
| Series: | Приборы и методы измерений |
| Subjects: | |
| Online Access: | https://pimi.bntu.by/jour/article/view/830 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849687683506372608 |
|---|---|
| author | A. A. Zaharadniuk A. Y. Taraev S. V. Lazarenko |
| author_facet | A. A. Zaharadniuk A. Y. Taraev S. V. Lazarenko |
| author_sort | A. A. Zaharadniuk |
| collection | DOAJ |
| description | Sources of pulsed photon radiation are widely used in science and industry. In this regard, there is a growing demand for dosimetry instruments capable of operating in these pulsed photon radiation fields. Until now there is no comprehensive methodology that describes the characteristics of reference fields of pulsed photon radiation required for calibration and verification of dosimetry equipment. The aim of this paper was to study the possibility of using a medical linear electron accelerator as a generating source of a reference pulsed photon radiation field. The paper investigates main characteristics of photon radiation field (namely, spectrum and average energy) generated by CLINAC in two modes of operation: 6 MV and 18 MV. Additionally it researches the possibility of attenuation of the CLINAC photon radiation intensity by a lead filter. The spectrum and average energy of the CLINAC photon radiation were calculated by means of Monte Carlo simulation in the Fluka program. The validation of the calculation was determined by comparing the attenuation coefficients calculated by the model with ones obtained experimentally by using real CLINACs. Experimentally, the attenuation coefficients were obtained by measuring the air kerma rate generated by the photon radiation fields of Varian VitalBeam and Varian iX CLINACs at a given point of space. Based on the simulation results, the Ḣ*(10) ambient dose equivalent ratio generated by CLINACs were calculated. It was found that the lead filter effectively attenuates the CLINAC photon radiation in terms of both air kerma rate and ambient dose equivalent rate to levels suitable for calibration of dosimetry equipment designed to measure pulsed radiation. It is shown that the lead filter significantly affects both the photon spectrum of the CLINAC and its average energy. |
| format | Article |
| id | doaj-art-a75c398b0bfa455799164c8f2a2989cf |
| institution | DOAJ |
| issn | 2220-9506 2414-0473 |
| language | English |
| publishDate | 2023-10-01 |
| publisher | Belarusian National Technical University |
| record_format | Article |
| series | Приборы и методы измерений |
| spelling | doaj-art-a75c398b0bfa455799164c8f2a2989cf2025-08-20T03:22:15ZengBelarusian National Technical UniversityПриборы и методы измерений2220-95062414-04732023-10-0114317919010.21122/2220-9506-2023-14-3-179-190621On the Possibility of Using Medical Linear Electron Accelerators as a Source of the Reference Pulsed Photon Radiation FieldA. A. Zaharadniuk0A. Y. Taraev1S. V. Lazarenko2ATOMTEXATOMTEXATOMTEXSources of pulsed photon radiation are widely used in science and industry. In this regard, there is a growing demand for dosimetry instruments capable of operating in these pulsed photon radiation fields. Until now there is no comprehensive methodology that describes the characteristics of reference fields of pulsed photon radiation required for calibration and verification of dosimetry equipment. The aim of this paper was to study the possibility of using a medical linear electron accelerator as a generating source of a reference pulsed photon radiation field. The paper investigates main characteristics of photon radiation field (namely, spectrum and average energy) generated by CLINAC in two modes of operation: 6 MV and 18 MV. Additionally it researches the possibility of attenuation of the CLINAC photon radiation intensity by a lead filter. The spectrum and average energy of the CLINAC photon radiation were calculated by means of Monte Carlo simulation in the Fluka program. The validation of the calculation was determined by comparing the attenuation coefficients calculated by the model with ones obtained experimentally by using real CLINACs. Experimentally, the attenuation coefficients were obtained by measuring the air kerma rate generated by the photon radiation fields of Varian VitalBeam and Varian iX CLINACs at a given point of space. Based on the simulation results, the Ḣ*(10) ambient dose equivalent ratio generated by CLINACs were calculated. It was found that the lead filter effectively attenuates the CLINAC photon radiation in terms of both air kerma rate and ambient dose equivalent rate to levels suitable for calibration of dosimetry equipment designed to measure pulsed radiation. It is shown that the lead filter significantly affects both the photon spectrum of the CLINAC and its average energy.https://pimi.bntu.by/jour/article/view/830monte carlo modellinglinear electron acceleratorpulsed photon radiation |
| spellingShingle | A. A. Zaharadniuk A. Y. Taraev S. V. Lazarenko On the Possibility of Using Medical Linear Electron Accelerators as a Source of the Reference Pulsed Photon Radiation Field Приборы и методы измерений monte carlo modelling linear electron accelerator pulsed photon radiation |
| title | On the Possibility of Using Medical Linear Electron Accelerators as a Source of the Reference Pulsed Photon Radiation Field |
| title_full | On the Possibility of Using Medical Linear Electron Accelerators as a Source of the Reference Pulsed Photon Radiation Field |
| title_fullStr | On the Possibility of Using Medical Linear Electron Accelerators as a Source of the Reference Pulsed Photon Radiation Field |
| title_full_unstemmed | On the Possibility of Using Medical Linear Electron Accelerators as a Source of the Reference Pulsed Photon Radiation Field |
| title_short | On the Possibility of Using Medical Linear Electron Accelerators as a Source of the Reference Pulsed Photon Radiation Field |
| title_sort | on the possibility of using medical linear electron accelerators as a source of the reference pulsed photon radiation field |
| topic | monte carlo modelling linear electron accelerator pulsed photon radiation |
| url | https://pimi.bntu.by/jour/article/view/830 |
| work_keys_str_mv | AT aazaharadniuk onthepossibilityofusingmedicallinearelectronacceleratorsasasourceofthereferencepulsedphotonradiationfield AT aytaraev onthepossibilityofusingmedicallinearelectronacceleratorsasasourceofthereferencepulsedphotonradiationfield AT svlazarenko onthepossibilityofusingmedicallinearelectronacceleratorsasasourceofthereferencepulsedphotonradiationfield |