LET from USRYIELD: units

From: Reddell, Brandon D (brandon.d.reddell@boeing.com)
Date: Mon May 22 2006 - 15:20:56 CEST

  • Next message: Katherine Harine: "Re: LET from USRYIELD: units"

    Dear FLUKA Users,

    Below, I have the following syntax in my .inp file to get LET using
    USRYIELD.

    USRYIELD -123.0 201.0 -51.0 3.0 4.0 1.0
    LET
    USRYIELD 1000.0 0.0 100.0 50.0 0.0 1403.0 &

    If one uses the rdyld program from the manual to read the binary output
    file, the data is presented as follows:

       Yield n. 1 "LET " , generalised particle n. 201, from region n.
    3 to region n. 4
          user normalisation: 1.00000000E+00, adopted cross section (if
    any): 1.00000000E+00 mb
          logar. energy binning from 1.0000E-03 to 1.0000E+03 GeV, 100
    bins (ratio : 1.1482E+00)
          One angular bin from 0.0000E+00 to 5.0000E+01 rad , ( 5.0000E+01
    sr wide )

                                     Differential Integral
                                        Yield Yield
    Lower energy Upper energy sr**-1 GeV**-1 number of particles

     1.0000E-03 1.1482E-03 0.0000000E+00 0.0000000E+00
     1.1482E-03 1.3183E-03 0.0000000E+00 0.0000000E+00
     1.3183E-03 1.5136E-03 0.0000000E+00 0.0000000E+00
     1.5136E-03 1.7378E-03 0.0000000E+00 0.0000000E+00
    .
    .
    .

    I thought by using code -123 I am getting d2N/d(LET)/dE. Are the first
    two columns energy or LET, is the 3rd column the flux of particles in
    that energy range or LET range? If energy range where is the LET
    information contained?

    To sum it all up: can someone tell me exactly how to read LET from this
    output file (and clarify the units)?

    Thanks,

    Brandon

  • Next message: Katherine Harine: "Re: LET from USRYIELD: units"

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