To grasp the metrological performance indicators of the BeO optically stimulated luminescent (OSL) dosimetry system and verify whether it meets the needs of personal dose monitoring, the OSL dosemeter containing BeO optically stimulated luminescent detectors was placed in and irradiated with X-ray and γ-ray reference radiation fields. Performance test research on nonlinear response, coefficient of variation, energy response, angular response, and repeatability were carried out for the personal dose equivalent Hp(10). The nonlinear response ranged from 0.92 to 1.05 in the dose range of 50 μSv to 1 Sv, and the coefficient of variation ranged from 0.55% to 4.8%. The energy response ranged from 0.71 to 1.01 in the energy range of 33 keV to 1.25 MeV. The angular response ranged from 0.97 to 1.22 in the range of 0° to ±75° angle of incidence. The irradiation dose of 1 mSv, 5 mSv and 10 mSv were repeated 8 times, and the corresponding dose repeatability were 0.99 - 1.00, 0.99 - 1.00 and 0.97 - 1.00, respectively. The results showed that the BeO OSL dosimetry system meets the requirements of the IEC 62387-2020 standard and can be used for personal dose monitoring.

OCI is the interface of database development that Oracle9i database provides to the applied system developer. The traditional method has such problems as low generality, high rate of resources usage, and unavailability of convenient access authority control. The database access middleware based on OCI is a kind of middleware based on service. It not only has such service procedure characteristics as encapsulation, heavy use, and position transparency but also resolvs the above problems. At the same time, this paper carries out two experiments through the data of which to compare the performance of two kinds of technology.

Object oriented modeling and simulation method is a kind of advanced method. UML is a series of object oriented modeling rules. In this paper, a UML based object oriented modeling and simulation method is analyzed. By modeling the process of the air force command & control system, the feasibility of this method is validated. In fact, the modeling method has been introduced into investigating projects. It′s evident that by using this method the efficiency of system modeling is increased and the reusability of the simulation model is enhanced.