[fluka-discuss]: Questions Regarding Frankel Pairs

From: Shyam Kumar <shyam.dei_at_iitb.ac.in>
Date: Mon, 6 Nov 2017 09:09:58 +0530

Dear Fluka Experts,
                  I want to ask a trivial question, This is the formula
(attached image) for E_min to create a Frankel pair (single Frankel pair),
I found it in some text but not derivation. I know that Fluka don't use
it, It
calculates NIEL and then calculate Frankel pairs. I want
to derive this formula, I tried a lot but unable to derive, If some body
knows some reference where It is derived or he can derive, It will be
helpful for me.

There is also a question, the above formula is for single Frankel pair,
what is the corresponding formula for clusters of defects similar to this?

For example for an electron of energy 225 KeV can create a single Frankel
pair. An electron of 8 MeV will create a clusters of frankel pairs. What
is the meaning of cluster here, means how many Frankel pairs (lower limit)
are considered as cluster.


 Thank you in Advance

 Regards,
-------------------------------------------------
Shyam Kumar,
IIT Bombay,
Mob : 07208246534
alt. e-mail : shyam.dei_at_iitb.ac.in
CERN Mail: shyam.kumar_at_cern.ch
--------------------------------------------------



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frankelpairs.png
(image/png attachment: frankelpairs.png)

Received on Mon Nov 06 2017 - 06:09:43 CET

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