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IRRPROFIle

Defines an irradiation profile for radioactive decay calculations

See also DCYTIMES, DCYSCORE, RADDECAY, RESNUCLEi

     WHAT(1) = length of a newly defined irradiation interval (in s)
             > 0.0 : a new interval is added with length WHAT(1)
             = 0.0 : ignored
             < 0.0 : the last defined interval (if any) is deleted
             Default = no new irradiation interval is defined

     WHAT(2) = beam intensity of the newly defined (see WHAT(1)) irradiation
               interval
             >= 0.0 : beam intensity in particles/s (0 is accepted)
             <  0.0 : considered as 0.0
             Default: 0.0 particles/s

     WHAT(3) = the same as WHAT(1)

     WHAT(4) = the same as WHAT(2)

     WHAT(5) = the same as WHAT(1)

     WHAT(6) = the same as WHAT(2)

     SDUM    = not used

     Default (option IRRPROFIle not given): no irradiation interval is defined

Note:

         Several cards can be combined up to a maximum of 20 irradiation
         intervals. Decay times as requested by DCYTIMES commands will be
         calculated from the end of the last one. Scoring during irradiation
         can be obtained giving negative decay times in DCYTIMES

Example:

 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 IRRPROFILE     1800.    1.5E12      250.     3.E10     4500.    4.2E12
 * The profile defined consists of 1800 s of irradiation at an intensity of
 * 1.5E12 particles/s, followed by 250 s at low intensity (3.E10 particles/s),
 * and then a third 4500 s interval at 4.2E12 particles/s