Re: [fluka-discuss]: energy deposition for 3MeV protons

From: George Kharashvili <georgek_at_jlab.org>
Date: Tue, 29 Jul 2014 08:30:53 -0400 (EDT)

Dear Tristan,

Much depends on which default you are using. If you have NEW-DEFA, or no DEFAULT card at all, particle transport threshold is set at 10 MeV.
It is always recommended to attach input files to questions sent to this list.

--
George Kharashvili
Jefferson Lab Radiation Control
757-269-6435
----- Original Message -----
From: "tristan davenne" <tristan.davenne_at_stfc.ac.uk>
To: fluka-discuss_at_fluka.org
Sent: Tuesday, July 29, 2014 5:29:08 AM
Subject: [fluka-discuss]: energy deposition for 3MeV protons
Hi, I am trying to calculate the energy deposition of 3MeV protons impinging on various metals, the energy is deposited within a depth of a fraction of a mm depending on the metal. I am using FLUKA with the default settings so low energy neutron library activated. 
I find the energy deposition as a function of depth looks quite flat without the significant bragg peak that was expected. Can someone explain why I am not seeing a sharp bragg peak at this energy? 
Many Thanks 
Tristan 
-- 
Scanned by iCritical. 

Received on Tue Jul 29 2014 - 15:58:45 CEST