described application_number US 76808301 A description the following sets forth a detailed description of a mode for carrying out the invention the description is intended to be illustrative of the invention and should not be taken to be limiting input to the program can be divided into 3 categories information regarding the location of the cpu with respect to the heat sink heat sink fin geometry and an applied modulated gaussian pulse simulating the radiation characteristics of the cpu referring to fig1 data from the first category cpu information is represented by logical step 101 logical step 101 allows input of the cpu into a computer program cpu information includes the horizontal and vertical distances from the heat sink to the cpu cpu information also includes the distance from the cpu to the ground finally cpu information includes the frequency range of the radiation noise emitted from the cpu and is denoted f i frequency high f low frequency low the program will also consider a second set of parameters for a cpu a second set of parameters allows the program to calculate the radiation produced by a single computer having two cpus sometimes referred to as a multiprocessor the second category of data includes the physical characteristics of the heat sink and is input into the computer program in logical step 102 data from the second category includes heat fin geometry specifically the size shape location and number of fins on.