Approximate calculation for confidence limit of RIA results and its application

The calculation for confidence limit of RIA results is related to some important conceptions and processing methods of random error analysis. In results evaluation, usually there is no full random error description. According to the general principle of statistics, the authors obtained some simple expression for solving this problem, which can be used in routine tests. The calculations of information such as the sensitivity and measurement range ect. of the RIA system have also been obtained