Study & Implementation Of The Control Program For The ASIPP Microbeam

A single-ion microbeam facility is a set of radiation system that can limit the diameter of the ion beam to the micron level and can deliver predefined numbers of ions into a predefined area of a cell. As an advanced facility technique of Radiation Biophysics, Single-ion microbeam facility provided a powerful method for the study of Radiation Biophysics and can be used to solve the problems that tradition methods can't deal with. Therefore, many countries put a high premium on the development of the technology.Key Laboratory of Ion Beam Bioengineering (CAS), in the ASSIP, is one of the forerunners who dedicated to the study of the micro-irradiation techniques. The ASIPP Microbeam has been constructed at the key Laboratory of Ion beam Bioengineering. This is no precedent for this in China. The ASIPP Microbeam has brought widespread attention, and has profound and far-reaching signification in bioengineering fields. This thesis mainly focuses on discussing study and implement of the control program for the ASIPP Microbeam. The control program can be divided into three logical modules: microscope stage controller, count of the number of radiated ions and control of the electronic beam shutter, and micro-imaging system. The main topics in this thesis are as following: presenting details of the microbeam facility, MC 2000, microscope stage, Venus-1 language, modeling on the control program based on the requirements analysis, the control structure and flow chart, the main frame for the integrated program, utilizing ActiveX control to implement serial communication between the computer and MC 2000, seamless integration between VB application and MATLAB, probing into some factors that may influence the controlling precision and providing some methods to solve them. On the other hand, the related pivotal protocols and tips in programming and optimizing strategies will be offered too.This project is listed in magnitude instrument developing project of Chinese Academy of Sciences (No: 19875054) and National Science & Technology Key Program (No: 2001BA302B).