RE: Dose Equivalent using AUXSCORE and particle id 240

From: Paola Sala <Paola.Sala_at_cern.ch>
Date: Wed, 8 Oct 2008 17:40:22 +0200

Hi Sunil

Thank you for finding a bug.

The problem is that, by mistake, the "low energy neutron" part of the
spectrum is not added to the usrbdx energy structure when dose-eq is
requested.
Your results are all zero because you see only the high energy part of
the spectrum, that has zero fluence
Correction is in progress and a respin version will be available very
soon
Thank you again and sorry !

Paola

________________________________

From: Sunil C [mailto:csunil11_at_gmail.com]=20
Sent: Wednesday, October 08, 2008 6:57 AM
To: fluka-discuss_at_fluka.org
Cc: Vasilis Vlachoudis; Alfredo Ferrari
Subject: Dose Equivalent using AUXSCORE and particle id 240

=20

Hi All

=20

I get zero value when scoring dose equivalent using the new particle id
240 and AUXSCORE card in the fluka 2008 version.=20

The particle history section in the output file indicates that the
fluence to dose conversion coefficients have been invoked.=20

The USRBDX description in the output also suggests that the values are
folded by the AMB74 fluence to dose conversion coefficients

=20

However, I am able to run the same input and obtain results using the
2006 fluka version by linking the deq99c subroutine.

=20

I have attached the input, and the outputs from the 2 fluka versions
along with this.

Please let me know what I didnt understand about the usage of this new
feature

=20

Thanks a lot

=20

Best Regards

Sunil

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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Hi =
Sunil<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Thank you for finding a =
bug.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>The problem is that, by mistake, =
the &#8220;low
energy neutron&#8221; part of the spectrum <o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>is not added to the usrbdx energy
structure when dose-eq is requested.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;Your results are all zero =
because you see
only the &nbsp;high energy part of the spectrum, that has zero =
fluence<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Correction is in progress and a =
respin
version will be available very soon<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Thank you again and sorry =
!<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Paola <o:p></o:p></span></font></p>

<div style=3D'border:none;border-left:solid blue 1.5pt;padding:0pt 0pt =
0pt 4.0pt'>

<div>

<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>

<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>

</span></font></div>

<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'> Sunil =
C
[mailto:csunil11_at_gmail.com] <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Wednesday, October =
08, 2008
6:57 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> =
fluka-discuss_at_fluka.org<br>
<b><span style=3D'font-weight:bold'>Cc:</span></b> <st1:PersonName =
w:st=3D"on">Vasilis
 Vlachoudis</st1:PersonName>; <st1:PersonName w:st=3D"on">Alfredo =
Ferrari</st1:PersonName><br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Dose Equivalent =
using
AUXSCORE and particle id 240</span></font><o:p></o:p></p>

</div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>Hi All<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>I&nbsp;get&nbsp; zero value&nbsp;when scoring dose equivalent =
using the
new particle id 240 and AUXSCORE card in the fluka 2008 version. =
<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>The particle history section in the output file indicates that =
the fluence
to dose conversion coefficients have been invoked. =
<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>The&nbsp;USRBDX description in the output also suggests that the =
values
are folded by the AMB74 fluence to dose conversion =
coefficients<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>However, I am able to run the same input and obtain results =
using the
2006 fluka version&nbsp;by linking&nbsp;the deq99c =
subroutine.<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>I have attached the input, and the outputs from the 2 fluka =
versions
along with this.<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>Please let me know what I didnt understand about the usage of =
this new
feature<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>Thanks a lot<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>Best Regards<o:p></o:p></span></font></p>

</div>

<div>

<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'>Sunil<o:p></o:p></span></font></p>

</div>

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Received on Thu Oct 09 2008 - 10:18:32 CEST

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