| Autor: |
Ana P. Perini, Lucio P. Neves, R Kramer, V F Cassola, Linda V.E. Caldas, José M. Fernández-Varea, Helen J. Khoury |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
Radiation Physics and Chemistry. 95:106-108 |
| ISSN: |
0969-806X |
| DOI: |
10.1016/j.radphyschem.2013.01.005 |
| Popis: |
The calibration procedure in radiotherapy treatments is very important and a sensitive task due to the high doses delivered to the patients. Generally, the air-kerma cavity standards for 60Co gamma rays are graphite cavity ionization chambers. In this work a new parallel-plate graphite ionization chamber was studied to analyze its potential use as a reference instrument. In order to evaluate its performance in 60Co beams, it was submitted to several characterization tests. Moreover, Monte Carlo simulations were undertaken using the EGSnrc code to study the influence of the chamber components on its response. The results obtained showed that this new ionization chamber presented a satisfactory performance in all evaluated tests. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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