Invoking the pointwise cross sections

Dear All,

I was trying to activate the point wise cross sections in FLUKA . This is
invoked using LOWNEUT and LOWMAT cards. For Li-6 (n.alpha), MATERIAL
LITHIU-6 was defined and material identifiers (3,6,296) were used. Output
file clearly indicate that the point wise cross section activated for
material LITHIU-6.

A similar attempt was made with BORON-10 with identifiers (5,10,296). The
output did not print any specific message about activating the point wise
cross sections. But for ARGON-40 with material identifiers (18, 40, 296),
the following message is printed in the output.

---------------------------------------------------------------------------------------------------

***Impossible to open file****

180400-293.pwx

***on unit 1***

**** the file 180400-293.pwx for pointwise

**** neutron cross section cannot be accessed****.

-------------------------------------------------------------------------------------------------------------

I am using the FLUKA 2011.2.17 version.

Can someone tell me what is happening?

Thank you

Best regards

Biju Keshavkumar

Scientific Officer
Bhabha Atomic Research Centre
Received on Thu Jan 17 2013 - 09:28:07 CET