1. A radiation analysis system comprising: (a) radiation source detection subsystem (RSDS); (b) batch definition processor (BDFP); (c) pre-analysis processor (PREP); (d) efficiency optimization processor (EOPT); and (e) post-analysis processor (POST); wherein said RSDS is configured with a radiation sensor (RSEN) to detect radiation emitted from a radiation sample (RSAM) and output digital radiation detection values (DRDV) associated with said emitted radiation; said BDFP is configured to accept user input from a graphical user interface (GUI) to define radiation analysis parameters (RAP) to be used in analyzing said RS; said PREP is configured to read said DRDV and perform a preliminary analysis to define a RSAM efficiency estimate (RSEE); said EOPT is configured to analyze said DRDV and perform an automated efficiency value optimization (AEVO) to generate absolute efficiency values (AEV) for said RSAM using said RAP and said RSEE as a starting point for said analysis; said EOPT is configured to rank said AEVO with a Figure-Of-Merit (FOM) based on the correlation of said DRDV to model functions comprising WELL-KNOWN-PARAMETERS (WNP) and NOT-WELL-KNOWN-PARAMETERS (NWP); and said POST is configured to generate reports of said AEV to said GUI.