Design Of Gamma Spectral Software For Internal Contamination In Lungs

In view of the emergency nuclear accident,rescue workers need to quickly conduct screening and assessment of the contamination inside the nuclear radiation to the people around the accident site,and timely identify the polluters inside,so that they can get timely treatment.Existing radiation measurement software generally requires complex and professional operations,and nuclear emergency workers do not necessarily have professional knowledge of nuclear radiation measurement.Therefore,it is of great practical significance to simplify measurement operation and reduce the dependence of measurement on operators.Therefore,through algorithm research,logic optimization,function aggregation and automatic analysis and design,this paper developed a lung radioactive internal contamination detection software to reduce the dependence of measurement on operators.The main work of this paper is as follows:1)The measurement procedure of commercially available universal gamma spectrometry software and similar software for whole body counter or lung counter were investigated,and the necessity of developing the software for measurement of lung radioactive internal contamination was determined.2)Investigate and test relevant algorithms of energy spectrum analysis.The least squares five-point smoothing,symmetric zero-area gaussian convolution peak seeking,SNIP background deduction,nuclide recognition and other spectral analysis are designed.3)According to the measurement process of similar software,demand analysis is conducted on the function and performance of the software,the three-layer architecture of the software is designed,and the functional modules of the software are defined.4)Based on C# language and ACCESS database,it realizes the general module,data layer module,logic layer module and presentation layer module of the software,establishes the corresponding dynamic link library,and integrates it into the main program to form the lung radioactive internal pollution spectrum detection software.5)The software was tested,mainly for the functional testing of the software spectrum measurement and analysis algorithm.The response time of the software function and the performance of the software under static and dynamic conditions are also tested.