[fluka-discuss]: Modelling a beam loss monitor

From: <hayley.smith_at_stfc.ac.uk>
Date: Thu, 20 Aug 2015 16:15:38 +0000

Hi All

I'm attempting to model the response of an ionisation beam loss monitor. The ionisation monitor is filled with argon gas. As the lost beam interacts with the gas it should create charged particles, which I wish to count.

I have tried to score the charged particles in the gas in a USRBIN, but I am unable to see any evidence of these reactions. I have also tried scoring the energy deposition by region binning and from this work out the charge. However I am seeing no energy deposition. I have tried using a USRBDX to look at boundary crossings between regions but these results contradict the fluence from the USRBIN?

I have turned on IONTRANS, IONFLUCT and DELTARAY but I am unsure if I need to use LOW-NEU to model this effect?

I have been looking at this presentation as a guide: https://www.fluka.org/free_download/course/triumf2012/Workshop/Lavrik.pdf

What is the best method for modelling the response of an ionisation beam loss monitor? What mistakes am I making?
Many thanks for any help you are able to give - the required input files are attached.

Hayley



Hayley Smith

ISIS Facility
Rutherford Appleton Laboratory
Harwell Oxford
OX11 0QX

01235 445524
hayley.smith_at_stfc.ac.uk<mailto:hayley.smith_at_stfc.ac.uk>






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Received on Thu Aug 20 2015 - 20:56:04 CEST

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