An apparatus, method, and system relating to radiation detection of low-energy beta particles are disclosed. Various combinations of checks including validation of safety critical features, validation of SCA-UDPD compatibility, and resource management are executed at various times to ensure the SCA operates properly on the device. Deletion of the data collected at the specified frequency is dependent upon the deletion of the data collected less frequently. The thermally radiative heat dissipation film fastly propagates the heat generated by the LED chip by thermal radiation in some specific direction so as to improve the efficiency of heat dissipation, reduce the total thickness, enhance the efficiency of light emitting and effectively prolong the lifetime of the LED street lamp. The scheduler is arranged to grant data rate to the at least one new user based on the determined relation between the set maximum interference value and the measured total interference level. A queue management process separate from the first process configures one or more queues on a storage device in accordance with the at least one queue parameter.