We have located links that may give you full text access.
Evaluation Studies
Journal Article
Research Support, Non-U.S. Gov't
Dosimetric verification of a Monte Carlo electron beam model for an add-on eMLC.
Physics in Medicine and Biology 2008 January 22
Dosimetric verification of a new Monte Carlo beam model for multi-leaf collimated electrons was performed using experimental data from an add-on electron multi-leaf collimator (eMLC) prototype. The measurements were compared against calculations using an electron phase space sampled from a parameterized electron beam model and the voxel Monte Carlo++ (VMC++) code for in-phantom energy deposition. Verification of the calculations was performed in a water phantom with the developed eMLC attached to a Varian 2100 C/D radiotherapy accelerator with nominal energies 6 MeV, 9 MeV, 12 MeV, 16 MeV and 20 MeV. The eMLC prototype consisting of 2 cm thick and 5 mm wide steel leaves is fixed under the 20 x 20 cm(2) electron applicator with a source-to-leaf distance 97.2 cm. The eMLC prototype has non-motorized leaves with straight leaf edges and a maximum field size of 20 x 20 cm(2) at SSD 100 cm. The beam model is a coupled multi-source model with parameters derived from detailed beam characterization measurements and a kernel model for the indirect leaf-scattered electrons. Typical calculation times with a 2% mean statistical uncertainty was under 5 min. In extensive set of in-water measurements 88% of the voxels were within 2% /2 mm acceptance criterion. Although at SSD 100 cm the dose near the phantom surface is slightly pronounced due to the short collimator-to-surface distance, the new beam model was suitable for dose calculation of the add-on type eMLC.
Full text links
Related Resources
Trending Papers
Challenges in Septic Shock: From New Hemodynamics to Blood Purification Therapies.Journal of Personalized Medicine 2024 Februrary 4
Molecular Targets of Novel Therapeutics for Diabetic Kidney Disease: A New Era of Nephroprotection.International Journal of Molecular Sciences 2024 April 4
The 'Ten Commandments' for the 2023 European Society of Cardiology guidelines for the management of endocarditis.European Heart Journal 2024 April 18
A Guide to the Use of Vasopressors and Inotropes for Patients in Shock.Journal of Intensive Care Medicine 2024 April 14
Diagnosis and Management of Cardiac Sarcoidosis: A Scientific Statement From the American Heart Association.Circulation 2024 April 19
Essential thrombocythaemia: A contemporary approach with new drugs on the horizon.British Journal of Haematology 2024 April 9
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app