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Mjerenje neutronskih i fotonskih brzina okolišnih ekvivalentnih doza u radioterapiji (CROSBI ID 622077)

Prilog sa skupa u zborniku | izvorni znanstveni rad | domaća recenzija

Gregov, Marin ; Bokulić, Tomislav ; Mlinarić Mihaela ; Mrčela, Iva ; Budanec, Mirjana ; Prlić, Ivica ; Kusić, Zvonko Mjerenje neutronskih i fotonskih brzina okolišnih ekvivalentnih doza u radioterapiji // Proceedings of the ninth symposium of the Croatian Radiation Protection Association / Knežević, Željka ; Majer, Marija ; Krajcar Bronić, Ines (ur.). Zagreb: Hrvatsko društvo za zaštitu od zračenja, 2013. str. 314-320

Podaci o odgovornosti

Gregov, Marin ; Bokulić, Tomislav ; Mlinarić Mihaela ; Mrčela, Iva ; Budanec, Mirjana ; Prlić, Ivica ; Kusić, Zvonko

hrvatski

Mjerenje neutronskih i fotonskih brzina okolišnih ekvivalentnih doza u radioterapiji

In radiotherapy with linear accelerator, for photon beam energies higher than 10 MV, secondary neutrons and their associated photons are significantly produced in pho tonuclear reactions. In this work, measurements of neutron and photon ambient equivalent dose rates ( ) are car ried out inside and outside of the treatment room. Measurements were performed with the linear accelerator Elekta Synergy S, for 18 MV energy photon beams, with simulation of clinical conditions by placing the Alderson phantom on the pat ient table during all measurements. ( ) were measured with the neutron BF 3 detector Thermo FHT 752, proportional detector Thermo FHT 40G and ionization chamber Gamma - Dosimeter 27091 at a height of 1 m, at points inside the treatment room, along t he maze and around the accelerator, and also outside of the treatment room, in front of the door and in the control room. Results show that ( ) depends on the gantry angle, delivered number of monitor units and photon beam field size. During the t reatment, neutron dose rate is significantly higher than photon dose rate in all points of measurements except in the control room. Neutron and photon dose rates decrease with distance from the isocentre. Neutron dose rate depends also on the cross - section of inner entrance of the maze and cross - section of the maze. Effective dose to the staff is predicted from the results obtained

neutronska okolišna ekvivalentna brzina doze; radioterapija

nije evidentirano

engleski

Measurement of neutron and photon ambient equivalent dose rates in radiotherapy

nije evidentirano

neutron ambient equivalent dose rate; radiotherapy

nije evidentirano

Podaci o prilogu

314-320.

2013.

nije evidentirano

objavljeno

978-953-96133-8-7

Podaci o matičnoj publikaciji

Proceedings of the ninth symposium of the Croatian Radiation Protection Association

Knežević, Željka ; Majer, Marija ; Krajcar Bronić, Ines

Zagreb: Hrvatsko društvo za zaštitu od zračenja

Podaci o skupu

9th symposium of the Croatian Radiation Protection Association with international participation

predavanje

10.04.2013-12.04.2013

Krk, Hrvatska

Povezanost rada

Fizika

Poveznice