Re: Damage from mojdeh najm on 2010-06-14 (fluka discuss archive)

From: mojdeh najm <mm.anjom_at_gmail.com>
Date: Mon, 14 Jun 2010 14:10:44 +0430

Dear Dr.Vasilis

I read DPA power point and the other references so that I prepared one
sample file with mono energetic proton beam. But I 'm not sure my result is
right or wrong and how can I analysis my result?

I attached my .inp file. Is it correct and using SI1MEVNE in right position
and setting?

Meanwhile I'm searching to find a sample (example) .inp file for
calculating damage.

Can you help me?

I'll appreciate you.

Regards

Mojdeh

On Sat, Jun 5, 2010 at 6:30 PM, Vasilis Vlachoudis <
Vasilis.Vlachoudis_at_cern.ch> wrote:

> Dear Mojdeh,
>
> the generalized particle SI1MEVNE (Silicon 1 MeV Neutron Equivalent
> Fluence) gives you the fluence of 1 MeV neutrons producing the same damage
> in a silicon detector as induced by an arbitrary particle fluence with a
> given energy distribution. It is a quantity often used to quantify radiation
> damage in silicon due to NIEL (Non Ionizing Energy Losses).
>
> However if you want to calculate correctly the NIEL or DPA please give a
> look in the talk for DPA
>
>
> http://info-fluka-discussion.web.cern.ch/info-fluka-discussion/pages/Talks.htm
>
> For the moment the functions and the DPA/NIEL related functionality are not
> present in the public release of FLUKA but exist only in the development
> version. It will be available in the next release.
>
> Regards
> Vasilis
>
> On 06/02/2010 03:40 PM, mojdeh najm wrote:
>
>> Dear Fluka developer and users
>>
>> I want to calculate damage in silicon device and I knew that with define
>> SI1MEVNE in the fluence estimator like USRTRACK, we can calculate
>> fluence of "1-MeV n equivalent particle" but i think we must do some
>> procedure:
>>
>> d/E/de/d/x/=integral of(/E/dis d/S) /= /N/A Integral of (/D(E)F(E) /d/E
>> )// // /[MeV cmâ??1]/./
>>
>>
>> /(For getting NIEL)/
>>
>> /Now my questions are:/
>>
>> /1) My concept and solution is right or wrong?/
>>
>> /2) If it is right, for calculation of above formula, it needs damage
>> function that I saw it in fluka out file as a library./
>>
>> /can I use them as damage function? And what's its unit?/
>>
>> /3) Is it useful for cascade damage or just point defect( both of
>> SI1MEVNE and NIEL formula)?/
>>
>> /Regards/
>>
>> /Mojdeh Anjom///
>>
>>
> --
> -------------------------------------------------------
> Vasilis Vlachoudis
> Dep. EN-STI-EET
> Web: home.cern.ch/bnv
> Tel: +41-22-7679851
> Fax: +41-22-7669644
> -------------------------------------------------------
>
>

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<div>
<p style="LINE-HEIGHT: normal; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span style="FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'">Dear Dr.Vasilis</span></p>

<p style="LINE-HEIGHT: normal; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span style="FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'">I read DPA power point and the other references so that I prepared one sample file with mono energetic proton beam. But I 'm not sure my result is right or wrong and how can I analysis my result?</span></p>

<p style="LINE-HEIGHT: normal; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span style="FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'">I attached my “inp file”. Is it correct and using SI1MEVNE in right position and setting?</span></p>

<p style="LINE-HEIGHT: normal; MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span style="FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'">Meanwhile I'm searching to find a sample (example) “inp file” for calculating damage.</span></p>

<p style="LINE-HEIGHT: normal; MARGIN: 0cm 0cm 6pt" class="MsoNormal"><span style="FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'">Mojdeh</span></p>
<br><br></div>
<div class="gmail_quote">On Sat, Jun 5, 2010 at 6:30 PM, Vasilis Vlachoudis <span dir="ltr"><<a href="mailto:Vasilis.Vlachoudis_at_cern.ch">Vasilis.Vlachoudis_at_cern.ch</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
<div class="im">Dear Mojdeh,<br><br>the generalized particle SI1MEVNE (Silicon 1 MeV Neutron Equivalent Fluence) gives you the fluence of 1 MeV neutrons producing the same damage in a silicon detector as induced by an arbitrary particle fluence with a given energy distribution. It is a quantity often used to quantify radiation damage in silicon due to NIEL (Non Ionizing Energy Losses).<br>
<br>However if you want to calculate correctly the NIEL or DPA please give a look in the talk for DPA<br><br>http://info-fluka-discussion.web.cern.ch/info-fluka-discussion/pages/Talks.htm<br>
<br>For the moment the functions and the DPA/NIEL related functionality are not present in the public release of FLUKA but exist only in the development version. It will be available in the next release.<br><br>Regards<br>
Vasilis<br><br>On 06/02/2010 03:40 PM, mojdeh najm wrote:<br></div>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
<div class="im">Dear Fluka developer and users<br><br>I want to calculate damage in silicon device and I knew that with define<br>SI1MEVNE in the fluence estimator like USRTRACK, we can calculate<br>fluence of "1-MeV n equivalent particle" but i think we must do some<br>
procedure:<br><br></div>d/E/de/d/x/=integral of(/E/dis d/S) /= /N/A Integral of (/D(E)F(E) /d/E<br>)// // /[MeV cmâ??1]/./
<div class="im"><br><br>/(For getting NIEL)/<br><br>/Now my questions are:/<br><br>/1) My concept and solution is right or wrong?/<br><br>/2) If it is right, for calculation of above formula, it needs damage<br>function that I saw it in fluka out file as a library./<br>
<br>/can I use them as damage function? And what's its unit?/<br><br>/3) Is it useful for cascade damage or just point defect( both of<br>SI1MEVNE and NIEL formula)?/<br><br>/Regards/<br><br></div>/Mojdeh Anjom///<br>
<br></blockquote>
<div>
<div></div>
<div class="h5"><br>-- <br>-------------------------------------------------------<br>Vasilis Vlachoudis<br>Dep. EN-STI-EET<br>Web: home.cern.ch/bnv<br>Tel: +41-22-7679851<br>
Fax: +41-22-7669644<br>-------------------------------------------------------<br><br></div></div></blockquote></div><br>

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Received on Mon Jun 14 2010 - 23:32:41 CEST

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