Re: USRBIN with beams at arbitrary angles and positions?

From: Roy Keyes <>
Date: Tue, 14 Jul 2009 15:50:33 -0600

Following up on my own question...

I got a suggestion off-list to use the ROT-DEFI and ROTPRBIN cards for
this. That seems to do exactly what I want. Pretty much like the manual
says (if I would have read that part! :) ).


Roy Keyes wrote:
> Hello Fluka users,
> I am wondering if it is possible to use USRBIN to score along the path
> of a beam that has an arbitrary angle and position.
> So far I have had some success scoring a beam offset, but parallel to
> the geometry Z-axis with an R-Phi-Z binning [WHAT(1) = 11] and a single
> Phi bin. (I assume this is equivalent to what the manual considers R-Z
> binning.) I have accomplished this by setting the WHAT(5) to the Y
> coordinate of the beam and the continuation card WHAT(2) to the X
> coordinate of the beam in the geometry frame.
> I have not found a way to change the angle of the USRBIN bins to score a
> beam that is not parallel to the Z-axis. Is this possible?
> If not, do you have other suggestions to score energy (or dose) along
> the beam path for a beam with an arbitrary angle? I am attempting to
> score the dose from particle beams inside a voxel phantom.
> Thank you,
> Roy
Received on Wed Jul 15 2009 - 00:40:17 CEST

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