JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@unpublished{bulavskaya:rupac2021-mopsa37,
author = {A.A. Bulavskaya and Yu.M. Cherepennikov and A.A. Grigorieva and I.A. Miloichikova and S. Stuchebrov},
title = {{Determination of Minimal Acceptable Sizes of Collimation Hole in Plastic Sample Forming Ejected Therapeutic High-Energy Electron Beam}},
% booktitle = {RuPAC'21},
eventtitle = {Russ. Part. Accel. Conf. (RuPAC'21)},
eventdate = {2021-09-27/2021-10-01},
language = {english},
intype = {presented at},
series = {Russian Particle Accelerator Conference},
number = {27},
venue = {Alushta, Crimea},
note = {presented at RuPAC'21 in Alushta, Crimea, unpublished},
abstract = {{Electron beams are widely applicable for the tasks of the radiotherapy. These applications provides good therapeutic results for the treatment of a wide range of malignant neoplasms. The increased requirements for the accuracy of dose delivery make the issue of the complex radiation fields’ formation during radiation therapy sessions urgent. Moreover, formation of patient-specific dose fields is often demanded. Collimators of individual complex shapes can be produced using 3D printing. This study is aimed at investigating the limitations of the minimum size of collimation holes, allowing adequate electron beam shaping. The limitations can be caused by electron scattering at the edges of plastic absorbers collimation holes that causes gradual dose decreasing instead of sharp one. For experimental investigation of this effect, special test sample was designed and made. This sample is rectangular parallelepiped with 12 round through holes with different diameters. Experiments was performed with medical electron beam. Dosimetry films was used to measure transverse profiles formed by each collimation hole. Obtained results showed that 12 MeV electron beam can be effectively shaped with the collimation holes with diameter higher than 9 mm.}},
}