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None Question about Range cuts 

Forum: Medical Applications
Date: 17 Mar, 2005
From: Justin Ducote <>


I am working on a simulation for x-ray detection in a porous lead-glass material. (ie, a slab of lead glass with periodic "wholes"/channels of vaccum ) Absorbed x-rays trigger electron release in the material and any electron which falls into a whole will count as being detected. The distance from whole to whole is on the order of 1-5 microns and the wholes themselves have a diameter of anywhere from 5-25 microns. Since xray detection is exculisvely determined by release of elecrons and their subsequent travel into a vaccum channel, I am concerned about the range cuts or production thresholds settings.

I would like some advice on how to optimize Geant4 for my purpose. I fear perhaps with an impropper range cut or production threshold that instead of triggering or producing a secondardy electron which would lead to a detected event that it might be absorbed and counted as deposited energy and that event would be lost and this would be semi-arbitrary based on guessing a good value for a range cut.

I was hoping someone with some experience in this matter could offer some advice.

Thank you,
 Justin Ducote

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1 None: Re: Question about Range cuts   (michel maire - 18 Mar, 2005)
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