Re: FLUKA: Too big material number

[Fan Lei <flei@scs.dera.gov.uk>]

Hi Stefan,

Thanks for pointing out the problem in my inp file. After the correction the
execution went much further, but it still come to a premature stop. The
message  gave out was

-------------------
.....

 Particle n.: 58  Ecutm (prim. & sec.) =   2.48629999 GeV  2.48629999
   GeV,    Hthnsz =   1.00000002E+30 GeV
  Particle n.: 60  Ecutm (prim. & sec.) =   2.5941 GeV  2.5941
   GeV,    Hthnsz =   1.00000002E+30 GeV
 **** Atomic electron contribution accounted via the Fano correction  ****
 **** f_Fano = 9.486E+00, Z_Fano = 7.316E+00                          ****

 **** Isotope tabulation data start     at location    14909 and end at
28034 (I*4 addr.) ****

 **** Non analog absorption factors start     at location    28037 and end
at    28240 (I*4 addr.) ****

 **** Biased downscattering factors start     at location    28243 and end
at    28446 (I*4 addr.) ****

 **** Non analog absorption group limits start at location   28447 and end
at    28548 (I*4 addr.) ****

 **** Biased downscattering group limits start at location   28549 and end
at    28650 (I*4 addr.) ****

 **** Cut-off group limits start        at location    28651 and end at
28752 (I*4 addr.) ****

 **** Lower Weight Window  limits start at location    28755 and end at
28958 (I*4 addr.) ****

 *** Fluka stopped in Xsread: group number disagreement between input and
xsec file ****
 *** Nmgp =     72, Nmgp0 =    111, Nmtg =     94, Nmtg0 =    111 ***
-----------------------------

Again I attached my inp file so you may be able to repreduce the message. Is
this something not quite right with the neutron c-s data?

I am also looking for instructions on how to write and make use of users
source.f file. What I want to do is to fire random intial particles on to a
sphere surface, with isotropical direction distribution and energy following
a user supplied histogram. Are there examples or instructions available for
doing such a job?

Regards.

Fan

-------------------------------------------------------------------
Dr. Fan Lei
Space Department, DERA
G081, A8 Building
Farnborough, GU14 0LX
U.K.

Tel  . 44-1252-393904
Fax.  44-1252-396330
email: flei@scs.dera.gov.uk



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