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Pregled bibliografske jedinice broj: 1029709

Accuracy of empirical formulas in evaluation of neutron dose equivalent inside the 60Co vaults reconstructed for medical linear accelerators


Ivković, Ana; Faj, Dario; Galić, Stipe; Karimi, Amir Hossein; Kasabašić, Mladen; Brkić, Hrvoje
Accuracy of empirical formulas in evaluation of neutron dose equivalent inside the 60Co vaults reconstructed for medical linear accelerators // International Journal of Radiation Research, 18 (2020), 1; 99-107 doi:10.18869/acadpub.ijrr.18.1.99 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 1029709 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Accuracy of empirical formulas in evaluation of neutron dose equivalent inside the 60Co vaults reconstructed for medical linear accelerators

Autori
Ivković, Ana ; Faj, Dario ; Galić, Stipe ; Karimi, Amir Hossein ; Kasabašić, Mladen ; Brkić, Hrvoje

Izvornik
International Journal of Radiation Research (2322-3243) 18 (2020), 1; 99-107

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
LINAC ; Vault ; Monte Carlo Simulations ; Radiotherapy ; neutron ambient dose equivalent

Sažetak
Background. In Southeast Europe medical accelerators are sometimes placed in small vaults originally built for 60Co treatment unit. In order to meet shielding requirements for high energy photon beams, the wall thickness had to be increased. Since the vaults are already limited in size, instead of adding more concrete, materials with high-Z elements were used. Limited vault size and addition of high-Z elements can contribute to the neutron dose equivalent for both medical personnel and patients. Materials and Methods. The most commonly used empirical equations for estimation of neutron dose equivalent at the maze door in the vault are by Kersey and Wu-McGinley. In order to assess accuracy of these equations, Monte Carlo (MC) simulations of various geometrical and compositional changes of vault were conducted. Neutron ambient dose equivalent ( was observed when dimensions of the vault walls were reduced gradually. Results. The empirical equations gave results with reasonable accuracy when vaults were of standard size. When the vault was decreased to the size of the usual 60Co unit vault, the most commonly used equations showed significant difference in results (up to 90%) in comparison to MC simulations. MC simulations showed that introducing different materials in shielding can change the neutron dose equivalent in vicinity of accelerators. Conclusion. For vaults limited in size, new simplified equation for neutron dose equivalent at the maze doors is presented, although performing a MC simulation of the specific vault is suggested.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Temeljne medicinske znanosti



POVEZANOST RADA


Projekti:
ZUP2018-16

Ustanove:
Klinički bolnički centar Osijek,
Medicinski fakultet, Osijek,
Fakultet za dentalnu medicinu i zdravstvo, Osijek

Profili:

Avatar Url Ana Ivković (autor)

Avatar Url Hrvoje Brkić (autor)

Avatar Url Mladen Kasabašić (autor)

Avatar Url Dario Faj (autor)

Avatar Url Stipe Galić (autor)

Citiraj ovu publikaciju

Ivković, Ana; Faj, Dario; Galić, Stipe; Karimi, Amir Hossein; Kasabašić, Mladen; Brkić, Hrvoje
Accuracy of empirical formulas in evaluation of neutron dose equivalent inside the 60Co vaults reconstructed for medical linear accelerators // International Journal of Radiation Research, 18 (2020), 1; 99-107 doi:10.18869/acadpub.ijrr.18.1.99 (međunarodna recenzija, članak, znanstveni)
Ivković, A., Faj, D., Galić, S., Karimi, A., Kasabašić, M. & Brkić, H. (2020) Accuracy of empirical formulas in evaluation of neutron dose equivalent inside the 60Co vaults reconstructed for medical linear accelerators. International Journal of Radiation Research, 18 (1), 99-107 doi:10.18869/acadpub.ijrr.18.1.99.
@article{article, year = {2020}, pages = {99-107}, DOI = {10.18869/acadpub.ijrr.18.1.99}, keywords = {LINAC, Vault, Monte Carlo Simulations, Radiotherapy, neutron ambient dose equivalent}, journal = {International Journal of Radiation Research}, doi = {10.18869/acadpub.ijrr.18.1.99}, volume = {18}, number = {1}, issn = {2322-3243}, title = {Accuracy of empirical formulas in evaluation of neutron dose equivalent inside the 60Co vaults reconstructed for medical linear accelerators}, keyword = {LINAC, Vault, Monte Carlo Simulations, Radiotherapy, neutron ambient dose equivalent} }
@article{article, year = {2020}, pages = {99-107}, DOI = {10.18869/acadpub.ijrr.18.1.99}, keywords = {LINAC, Vault, Monte Carlo Simulations, Radiotherapy, neutron ambient dose equivalent}, journal = {International Journal of Radiation Research}, doi = {10.18869/acadpub.ijrr.18.1.99}, volume = {18}, number = {1}, issn = {2322-3243}, title = {Accuracy of empirical formulas in evaluation of neutron dose equivalent inside the 60Co vaults reconstructed for medical linear accelerators}, keyword = {LINAC, Vault, Monte Carlo Simulations, Radiotherapy, neutron ambient dose equivalent} }

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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