Re: [fluka-discuss]: a small question about the USRBDX card

From: Luigi Salvatore Esposito <luigi.salvatore.esposito_at_cern.ch>
Date: Sun, 28 May 2017 10:27:10 +0000

Dear Xie,
The normalization depends on your application.
FLUKA provide the result of USRBDX in units of “cm-2 GeV-1 sr-1 per incident primary” (for more details refer to Note 2 of the USRBDX section in the manual).
Then it’s up to you to use the appropriate normalization factor for your application.
Just as an example, if you have 1 mA current and multiply the results of USRBDX by 1 mA/1.6e-19 C = 6.25e12 s-1 (i.e. number of primaries per second),
then your spectrum is expressed in units of “cm-2 GeV-1 sr-1 s-1“.
Best regards, luigi

From: <owner-fluka-discuss_at_mi.infn.it> on behalf of Xie Zhenhuan <xiezh13_at_mails.tsinghua.edu.cn>
Date: Sunday, 28 May 2017 at 05:16
To: "fluka-discuss_at_fluka.org" <fluka-discuss_at_fluka.org>
Subject: [fluka-discuss]: a small question about the USRBDX card


Hi dear FLUKA experts!

I'm a FLUKA beginner, and I have a small question about the USRBDX card:

I'm now trying to use the USRBDX card to measure an electron spectrum(just like the picture below), and I wonder how to choose a proper normalization parameter in Y axis for drawing a typical spectrum? I noticed that the X axis can be normalized in MeV, GeV,etc., but I'm not sure of the present meaning of Y axis and how to normalize the Y axis numbers in order to get a typical spectrum.

[cid:image001.jpg_at_01D2D7AD.AEDB5710]

Thank you for your sincere help and advice!

Best regards,
Martin Xie
2017.5.23








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Received on Sun May 28 2017 - 13:49:13 CEST

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