Re: error in t+Li reaction

From: Francesco Cerutti <Francesco.Cerutti_at_cern.ch>
Date: Fri, 8 Jan 2010 10:06:49 +0100

Dear Andrzej,

the crash occurs at the inizialization stage and concerns the stopping
power calculation, due to the quite high density value you input for your
lithium compound (7g/cm^3?!). In fact, error messages about the
Sternheimer's parameters of the density effect term appear as well.

Note that, if DEUT-LIT is intended to be a compound of Li6 and Li7, the
definitions of LITHIU-6 and LITHIU-7 are wrong, since they do not identify
single isotope elements. In order to do this, as already mentioned a few
times (e.g., see the last one at
http://www.fluka.org/web_archive/earchive/new-fluka-discuss/2474.html),
you have to specify the *mass number* (6.0 or 7.0) in the WHAT(6) of the
MATERIAL card. The WHAT(2)field requires instead, at the same time, the
*atomic mass* in amu, which, e.g., for Li7 is not 7.0 but 7.016.

Moreover, requesting the old evaporation model (PHYSICS card with
SDUM=EVAPORAT and WHAT(1)=1.0) is not allowed and will imply a run stop.

Best wishes for a tasty 2010 to everybody

Francesco

**************************************************
Francesco Cerutti
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
tel. ++41 22 7678962
fax ++41 22 7668854
Received on Fri Jan 08 2010 - 10:45:19 CET

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