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Dear FLUKA developers,
I did not get a response about my problem (since 27 Jan 2011) as follow..
Dear FLUKA users,
I want to calculate NIEL value for 1 MeV protons on 1cm Al target.
In discussion list, there is a question and a response entitled NIEL
dimension.
There is following response available;
"NIEL-DEP in FLUKA (generalized particle 238) is just an amount of
deposited energy (the fraction of deposited energy which is not deposited
by ionization). GeV is the dimension of NIEL-DEP, which is NIEL
multiplied by fluence."
I write an input file as attachment.
After simulation, I obtained USRBIN proton fluence and NIEL-DEP values.
Than I divided NIEL-DEP by FLUENCE and obtained NIEL value.
FLUENCE=1.4498E-3
NIEL-DEP=5.5935E-7
NIEL=NIEL-DEP/FLUENCE
NIEL=5.5935E-7/1.4498E-3
NIEL=3.858E-4 (GeV unit)
NIEL=0.3858 (MeV unit)
In literature, there is a study about NIEL calculations of some materials
including Al.
NIEL(Jun et al., 2003) =0.0548 MeV-cm2/g
These results are incompatible or I am doing some mistakes in simulation
or unit conversion.
Thank you in advance.
In this case, should I accept accuracy of my NIEL results ?
Thanks.
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Dear FLUKA developers,<br><br>I did not get a response about my problem (since 27 Jan 2011) as follow..<br><br><font style="font-size: 8pt;" size="1">Dear FLUKA users,
</font><font style="font-size: 8pt;" size="1"><br></font>
<BR><font style="font-size: 8pt;" size="1">I want to calculate NIEL value for 1 MeV protons on 1cm Al target.
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
In discussion list, there is a question and a response entitled NIEL
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
dimension.
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
There is following response available;
</font><font style="font-size: 8pt;" size="1"><br></font>
<BR><font style="font-size: 8pt;" size="1">"NIEL-DEP in FLUKA (generalized particle 238) is just an amount of
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
deposited energy (the fraction of deposited energy which is not deposited
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
by ionization). GeV is the dimension of NIEL-DEP, which is NIEL
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
multiplied by fluence."
</font><font style="font-size: 8pt;" size="1"><br></font>
<BR><font style="font-size: 8pt;" size="1">I write an input file as attachment.
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
After simulation, I obtained USRBIN proton fluence and NIEL-DEP values.
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
Than I divided NIEL-DEP by FLUENCE and obtained NIEL value.
</font><font style="font-size: 8pt;" size="1"><br></font>
<BR><font style="font-size: 8pt;" size="1">FLUENCE=1.4498E-3
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
NIEL-DEP=5.5935E-7
</font><font style="font-size: 8pt;" size="1"><br></font>
<BR><font style="font-size: 8pt;" size="1">NIEL=NIEL-DEP/FLUENCE
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
NIEL=5.5935E-7/1.4498E-3
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
NIEL=3.858E-4 (GeV unit)
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
NIEL=0.3858 (MeV unit)
</font><font style="font-size: 8pt;" size="1"><br></font>
<BR><font style="font-size: 8pt;" size="1">In literature, there is a study about NIEL calculations of some materials
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
including Al.
</font><font style="font-size: 8pt;" size="1"><br></font>
<BR><font style="font-size: 8pt;" size="1">NIEL(Jun et al., 2003) =0.0548 MeV-cm2/g
</font><font style="font-size: 8pt;" size="1"><br></font>
<BR><font style="font-size: 8pt;" size="1">These results are incompatible or I am doing some mistakes in simulation
</font><font style="font-size: 8pt;" size="1"><br></font><font style="font-size: 8pt;" size="1">
or unit conversion.
</font><font style="font-size: 8pt;" size="1"><br></font>
<BR><font style="font-size: 8pt;" size="1">Thank you in advance.
</font><br><br><br>In this case, should I accept accuracy of my NIEL results ?<br><br>Thanks.<br><br><br> </div></body>
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Received on Wed Aug 17 2011 - 09:23:01 CEST
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