Realistic Monte Carlo simulation of the INOR Therapy Unit and electron contamination calculation for a board 60Co Beam
The therapy beam from the 60Co unit used at INOR was modeled using the EGS Monte Carlo radiation transport system. The rectangular geometry of the collimating system is fully simulated and the effect of considering the outer collimator a set of stepped collimators rather than a collimator with a sm...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Instituto Tecnológico de Costa Rica
2016-11-01
|
| Series: | Tecnología en Marcha |
| Online Access: | https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/2858 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849304254632689664 |
|---|---|
| author | J. Ernesto Mainegra Roberto Capote |
| author_facet | J. Ernesto Mainegra Roberto Capote |
| author_sort | J. Ernesto Mainegra |
| collection | DOAJ |
| description |
The therapy beam from the 60Co unit used at INOR was modeled using the EGS Monte Carlo radiation transport system. The rectangular geometry of the collimating system is fully simulated and the effect of considering the outer collimator a set of stepped collimators rather than a collimator with a smooth surface was estimated. Variance reduction techniques are widely used to increase the efficiency of our calculations. Even for the dose at very shallow depths (<0.5 mm) the agreement of our calculations with the experimental results is very good. The shift of peak dose to about 1 mm due to electron contamination is observed.
|
| format | Article |
| id | doaj-art-194c981bea9e4c5fafbbccd8321078d5 |
| institution | Kabale University |
| issn | 0379-3982 2215-3241 |
| language | English |
| publishDate | 2016-11-01 |
| publisher | Instituto Tecnológico de Costa Rica |
| record_format | Article |
| series | Tecnología en Marcha |
| spelling | doaj-art-194c981bea9e4c5fafbbccd8321078d52025-08-20T03:55:45ZengInstituto Tecnológico de Costa RicaTecnología en Marcha0379-39822215-32412016-11-0113Realistic Monte Carlo simulation of the INOR Therapy Unit and electron contamination calculation for a board 60Co BeamJ. Ernesto MainegraRoberto Capote The therapy beam from the 60Co unit used at INOR was modeled using the EGS Monte Carlo radiation transport system. The rectangular geometry of the collimating system is fully simulated and the effect of considering the outer collimator a set of stepped collimators rather than a collimator with a smooth surface was estimated. Variance reduction techniques are widely used to increase the efficiency of our calculations. Even for the dose at very shallow depths (<0.5 mm) the agreement of our calculations with the experimental results is very good. The shift of peak dose to about 1 mm due to electron contamination is observed. https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/2858 |
| spellingShingle | J. Ernesto Mainegra Roberto Capote Realistic Monte Carlo simulation of the INOR Therapy Unit and electron contamination calculation for a board 60Co Beam Tecnología en Marcha |
| title | Realistic Monte Carlo simulation of the INOR Therapy Unit and electron contamination calculation for a board 60Co Beam |
| title_full | Realistic Monte Carlo simulation of the INOR Therapy Unit and electron contamination calculation for a board 60Co Beam |
| title_fullStr | Realistic Monte Carlo simulation of the INOR Therapy Unit and electron contamination calculation for a board 60Co Beam |
| title_full_unstemmed | Realistic Monte Carlo simulation of the INOR Therapy Unit and electron contamination calculation for a board 60Co Beam |
| title_short | Realistic Monte Carlo simulation of the INOR Therapy Unit and electron contamination calculation for a board 60Co Beam |
| title_sort | realistic monte carlo simulation of the inor therapy unit and electron contamination calculation for a board 60co beam |
| url | https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/2858 |
| work_keys_str_mv | AT jernestomainegra realisticmontecarlosimulationoftheinortherapyunitandelectroncontaminationcalculationforaboard60cobeam AT robertocapote realisticmontecarlosimulationoftheinortherapyunitandelectroncontaminationcalculationforaboard60cobeam |