Mjerenje neutronskih i fotonskih brzina okolišnih ekvivalentnih doza u radioterapiji (CROSBI ID 622077)
Prilog sa skupa u zborniku | izvorni znanstveni rad | domaća recenzija
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