RE: [fluka-discuss]: Turning off biasing with RADDECAY

From: Paola Sala <paola.sala_at_mi.infn.it>
Date: Thu, 17 Oct 2013 14:20:59 +0200

Hello

By default, there is no biasing unless you define it. So, you do not need
to turn it off, it's already off.
If you define some biasing, then you can use the raddecay card to choose
whether to use it for prompt, decay or both.
There are a couple of exceptions to this general behaviour, namely if
radioactive decay is activated, there is multiple sampling of each decay
(can be changed what(3) of RADDECAY); also, with some of the DEFAULT
settings non-analogue neutron absorption is activated for the thermal
groups (see the description of the LOW-BIAS card in the manual).
Ciao
Paola

> Hello Paola,
>
> Thank you for your suggestion. Unfortunately it seems I didn't make myself
> clear. I want biasing OFF for prompt radiation and OFF for decay radiation
> as well (i.e., I do NOT want biasing on at all).
>
> Cheers,
> Paul
>
> From: Paola Sala
> Sent: 17 October 2013 12:38
> To: Paul Miyagawa
> Cc: fluka-discuss_at_fluka.org
> Subject: Re: [fluka-discuss]: Turning off biasing with RADDECAY
>
> Hello
> The value 0 is ignored. To set bias for decay radiation only the flag
> should be set to 2 (sse manual :
>
> 2.0 = applied to decay radiation only)
> cheers
> Paola
> On 10/17/2013 12:12 PM, Paul Miyagawa wrote:
> Hello,
>
> I am trying to turn off biasing for both prompt and decay radiation using
> WHAT(4) of the RADDECAY card. I am finding that any flags I set to 0 are
> treated as 1 (i.e., biasing is turned on for prompt radiation for those
> particles). Is this expected, and if so then does that mean it is
> impossible to turn off biasing for both prompt and decay radiation? Thanks
> for any help.
>
> Cheers,
> Paul
>
>


Paola Sala
INFN Milano
tel. Milano +39-0250317374
tel. CERN +41-227679148
Received on Thu Oct 17 2013 - 15:05:42 CEST