Construction of a web application for calculating internal exposure doses from Cs-137, Cs-134 or K-40 in wild animals

A user code was made to compute energy depositions on the use of EGS5, and the result of execution in Fortran is output to the result file named egs5job.out. In this execution method, program input and output are performed in a process of writing a file, executing the Fortan-program on a command line, and evaluation of the results with reading the output file. This complicated process has low affinity with the Web-server application. On the other hand, preparing a Fortran execution environment is difficult for biological researchers who want to predict the internal exposure dose. In this research, by using Ruby on Rails (Rails), we constructed an application in which the user code is changed based on the input data of the dynamic Web page, Fortran on the command line is executed by Rails and the output results were analyzed to display the predicted dose rate on a Web page. As a result, it became possible to calculate the beta and gamma-internal exposure doses of Cs-137, Cs-134 and K-40 on the Web application. It is expected that the user code that can predict the beta and gamma-ray internal dose will increase its utility value in the future by linking with script language. (author)