RE: [fluka-discuss]: Plotting spectra using USRCOLL

From: Eleftherios Skordis <>
Date: Wed, 3 May 2017 12:51:39 +0000

Hi Shri,

judging from the file you attached, I think the problem lies in the fact that you have scored in ASCII.
As a general approach, one should score in binary format so that you can you are able to use the available FLUKA tools (easily found in flair) to both sum together different runs and cycles for increase statistics as well as the evaluation of the statistical error.

Furthermore, as Nikhil suggested you can then use flair to sum and plot the results directly from the "processed" files.

Kind regards



Eleftherios Skordis
CH-1211 GENEVA 23

OFFICE: +41-22-7679541<tel:%2B41-22-7675461>
From: [] on behalf of nikhil shetty []
Sent: 03 May 2017 10:59
To: Shri Bheesette
Cc: FLUKA discussion
Subject: Re: [fluka-discuss]: Plotting spectra using USRCOLL

Dear Srinidhi,

you should have 5 *fort* files, all of which are in binary format. They cannot be interpreted. You need to merge them and convert them to ASCII format which is readable. It can be easily done via Flair.

In Flair, under "Run > Data", click on "Scan" which should automatically select the scoring. Then, click on "Process". Two new files (*_sum.lis and *_tab.lis) should be created, both of which are readable. While *_sum.lis contains average/cumulative quantities, *_tab.lis contains 'plot-able' quantities.

To plot, add a USR-1D plot in Flair, and choose the *_tab.lis file.


On Wed, May 3, 2017 at 2:11 AM, Srinidhi Bheesette <<>> wrote:
Hi all,

I would like to plot the energy spectrum of alphas and tritium deposited on a silicon sensor layer after reacting with 6LiF.

I am using the USRCOLL scoring card to do this:

[Inline images 2]

The simulations parameters being: 1000000 primaries/cycle and 5 cycles
One of the fort files is attached.

How do I interpret these files and plot the spectra using them?

Any help would be appreciated



(Srinidhi Bheesette)

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Received on Wed May 03 2017 - 16:09:31 CEST

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