I am still playing around with the MCA-PHA software. I see that one can use the "register" button to save data (e.g., counts in each "channel") as an ascii text file. I will likely need to use a separate program (can't get used to calling them "apps") for data analysis. I downloaded interspec, but haven't done anything yet with this.
I also have some old fortran programs. Many of these were developed by R. Gunnink and J.B. Niday when they were with the Univ of Calif. at the Lawrence Livermore Lab. Some years back I talked with Ray Gunnink. He had retired to Michigan and was working for Ortec (or maybe it was Canberra, can't recall for certain). He was still programming in fortran. [I just need to find a paper tape punch and reader and perhaps a card punch and reader as well!! :-) :-) ]
I may have to go on-line to Ohio State's library and find some of the old technical reports. I still have my old copy of Bevington and some of the old fortran routines from long ago.
For graphical stuff I like the Dislin package (subroutines callable from fortran and other languages). Dislin is free for non-commercial use and is available from the Max Planck Institute.
https://www.mps.mpg.de/dislin/
I did some fairly quick measurements yesterday. Below is Eu-152.
