Naslov
Analysis of daily and weekly linac dosimetric checks

Autori
Mlinarić, Mihaela ; Gregov, Marin ; Budanec, Mirjana ; Mrčela, Iva ; Kusić, Zvonko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Proceedings of the 7th Alpe Adria Medical Physics Meeting AAMPM / Hršak, Hrvoje ; Budanec, Mirjana - Zagreb, 2016, 207-211

Skup
7th Alpe Adria Medical Physics Meeting AAMPM

Mjesto i datum
Zagreb, Hrvatska, 19.05.2016. - 21.05.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
linac QC

Sažetak
Quality control of medical linear accelerator is one of major requirements for achieving necessary levels of accuracy in external beam radiotherapy [1]. Medical linear accelerator used at the Department of oncology and nuclear medicine, UHC Sestre milosrdnice, is Elekta Synergy S, installed in late 2011. The quality assurance programme accepted in the Department follows national regulatory agency guidelines and legislative obligations as well as other recommendations [2]. Daily quality checks are mostly performed by radiation technologists and in addition to safety and geometry checks also include dosimetric tests using PTW QUICKCHECKwebline device. Weekly linac output checks with plastic phantoms are done by the physics team as well as periodical monthly, quarterly and annual tests. The aim of this study is to present results of dosimetric measurements of linac output in daily and weekly constancy checks. As these tests are performed in very different manner by different personnel there is a possibility of discrepancies, which should be investigated. Additionally, daily measurements of beam flatness and symmetry are also presented and analyzed. The data presented here were accumulated from the start of 2013 till the end of 2015. During this time, the linac underwent some major repairs, including exchanges of magnetron, electron gun, ionization chambers and bending magnet.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA