Re: [fluka-discuss]: Geometry: Turns & Bending Magnets

From: Andrew Hastings <>
Date: Tue, 28 Aug 2018 15:13:50 +0000

Thank you, I'll take a look!


Andrew Hastings
SI Coordinator
LSU College of Engineering
Health Physics Graduate Student
From: Andrea Fontana <>
Sent: Tuesday, August 28, 2018 4:54:15 AM
To: Andrew Hastings; fluka discussion
Subject: Re: [fluka-discuss]: Geometry: Turns & Bending Magnets

Hi Andrew,
     did you try Exercise 3 given at the last Fluka advanced course
(in which a dipole is defined both as geometry and as magnetic
field)? This is the link where you can find slides and files:

If I understand correctly, your problem is very similar.

Hope this helps,

Il 27/08/2018 19:20, Andrew Hastings ha scritto:
> Discuss Group,
> Iím in the process of entering the geometry for the linac tunnel and
> two 90 degree turns to place the electron beam in the plane of the
> accelerator ring. I canít seem to determine the best approach for the
> geometry of the vacuum pipe turns to accurately represent the smooth
> bend while maintaining a cylindrical shape. Iíve considered staggering
> many segments of RCCís, but this would be extremely inefficient.
> Alternatively, I considered overlapping spheres, although the true
> pipe shape wouldnít be represented. I havenít found a way to make the
> QUA shape fit my purposes.
> After digging around for any publications and the discuss thread, Iíve
> been unable to find any mention or examples of this type of geometry.
> Below is an AutoCad image of the first turn. Any suggestions on how to
> make a 90 degree curving cylinder of a certain radius?
> 1465572792562_image003.png
> Andrew D. Hastings
> Medical Physics and Health Physics Graduate Student (MS)
> College of Engineering SI Coordinator
> Louisiana State University
> (225)333-8435| <>

Dr. Andrea Fontana                    tel: +39 0382 987991
Istituto Nazionale                    fax: +39 0382 423241
di Fisica Nucleare
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Received on Tue Aug 28 2018 - 18:32:12 CEST

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