Design of radionuclide database based on Qt/SQLite portable spectrometer

At present, the number of radionuclides makes the traditional manual management and maintenance of nuclide complex, and at the same tim e, there are problems such as poor portability of the nuclide query and management system. Therefore, using zero-configuration, code-simplified SQLite embedded database with cross-platform software Qt5, designed a nuclear database system suitable for X-gamma radiation measurement. According to the basic composition information of the nuclide and the decay system, nine data tables are designed to store the basic information of the nuclide, the decay information and the extended element basic information and the characteristic X-ray energy corresponding to the element. In the interface, the display window of nuclide information, decay information and element information is designed with QWidget as the form class, and the functional design and specific implementation methods of each module are analyzed in detail. Encapsulate the API functions provided by SQLite, call the encapsulated interface to connect to the database, and realize the visualization of database retrieval and management functions. Applied to the embedded Linux platform, completed the transplantation and functional testing of the database system. The results showed that the nuclide database system designed with embedded database as the core has good scalability and maintainability. It can be used in portable spectrometer to improve the data storage and management efficiency of the system. (authors)