Design Of IMRT Dose Verification Software

IMRT is an advanced radiation therapy, in order to achieve the goal of precise radiotherapy, IMRT treatment plan must undergo a rigorous dose verification before implementing. In addition, quality assurance of linear accelerator used for IMRT is also very important. Two-dimensional ionization chamber array is a device used for measuring dose distribution on the plane, which has a wide application in IMRT dose verification and accelerator QA. The task of this thesis is to complete the measurement software of two-dimensional ionization chamber array measuring system on Android platform.Based on the introduction of two-dimensional ionization chamber array measuring system, this thesis mainly discusses the requirement analysis and software architecture design, analyzes the key technology used in the realization of each functional module and the main methods to solve the key and difficult problems, realizes the main functions of this software through the reach of some algorithm such as two-dimensional interpolation, isodose line tracking and color scale. The software is developed based on Android SDK, the UDP protocol is used to transmit data; the OpenGL ES technology is used to draw two-dimensional and three-dimensional dose distribution; the SQLite database is used to storage the measurement data, the AChartEngine tool kit is used to draw all kinds of charts. In addition, The research and implementation of some algorithm like two-dimensional interpolation, isodose line tracking and color scale is also part of the work.Accelerator quality assurance and IMRT dose verification software implements the main functions which the two-dimensional ionization chamber array measurement system needs, and proved the application future of mobile platform in the medical field, has a certain value in engineering.