Last version:
FLUKA 2021.2.1, July 26th 2021
(last respin )
flair-2.3-0b 30-Jul-2021


-- Fluka Release
( 30.07.2021 )

FLUKA 2021.2.1 has been released.
Fluka Major Release 18.05.2021 FLUKA 2021.2.0 has been released.
Congratulations from INFN: ,
Dear Paola,
I wish to congratulate you and all the authors and collaborators for this new Fluka release, which looks at the future and confirms the support of INFN in the development and continuous improvement of this code.
best regards
Diego Bettoni
INFN Executive Committee

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Calls user dependent global initialisation.


The meaning of WHAT(1),...,WHAT(6), SDUM is defined by the user. A call to the user-written routine USRGLO with 6 WHAT numerical values and one character string SDUM as arguments is issued before any other FLUKA initialisation if this command is found anywhere in input.


  • 1) In subroutine USRGLO, WHAT and SDUM must be declared as follows:
             DOUBLE PRECISION WHAT (6)
             CHARACTER SDUM*8

  • 2) A description of routine USRGLO and instructions about its use are given in Chap. (13)

  • 3) It is suggested that the USRGLO routine shall contain at least the three standard INCLUDE files:
                         DBLPRC, DIMPAR, IOUNIT
  • 4) Other useful files to be INCLUDEd, depending on the problem, can be BEAMCM, CASLIM, SOURCM, SUMCOU, FLKMAT, PAPROP, SCOHLP, USRBDX, USRBIN, USRSNC, USRTRC, USRYLD}. See Chap. (13) for more information on INCLUDE files useful in user routines.


 USRGCALL        789.      321.      18.0     144.0     -27.0     3.14 SPECIAL
 * Call global initialisation routine passing 6 numerical values and a string

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