Count rate file with this software. crscale help you scale a count rate file into the level of a time activity curve (TAC) in DFT file.
DFT file is assumed to contain two columns: time column and one TAC. If more than one TACs exist, only the first one is used. Data is interpolated, if necessary, to the times of first file. Output is written in DFT format or as plain data file depending of the format of first data file.

Usage: crscale <count rate file> <dft file> <output file>

The license of this software is Freeware, you can free download and free use this calculator software.