[fluka-discuss]: how to active the low-energy neutron weight window

From: 张璐 <zhanglu_at_impcas.ac.cn>
Date: Mon, 23 Oct 2017 15:43:19 +0800 (GMT+08:00)

Dear FLUKA's user and developer;

   I'm now using fluka to do something about the low-energy neutron shielding, but during my work, i can find efficient way to active the weight window for low-energy neutrons by WW-FACTOR.

there is a simple example in the attachment.




  In this example, Iused the WW-FACTOR , the WW-THRES (wwlowneu) and a WW-PROFI CARD, but it seems that the RR/SP never happens.

  Is there still something absent？ How to active the WW-Factor efficiently？

  By the way，in the fluka output， it shows as following：

   Cut-off kinetic energy for WWLOWNEU transport: 1.000E-02 GeV
   Cut-off kinetic energy for WWLOWNEU RR/splitt: 0.000E+00 - 0.000E+00 GeV , WW ext. width: 1.000E+01, Bot&Top X 1.000E+00
   Does above information means the Weight window for low-neutron didn't be actived?




Thank you very much！



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Received on Mon Oct 23 2017 - 11:29:13 CEST