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Forum: Event and Track Management
Re: Question Particle gun direction (Sean Turnbull)
Date: 10 Mar, 2003
From: michel maire <michel maire>

User Sean Turnbull wrote:

>> I have a setup of a lead cylinder of width 300mm and height 200mm.
>> I am wanting to fire a 500MeV beam of muons (mu-) isotropically over the
>> (flat) top of the cylinder. Also I am wanting the mu- distribution to be
>> random over the cylinder.
>> Is it possible to randomly alter the angle of incidence (relative to
>> perpendicular) to surface of the muons striking the target as well as
>> the distribution across width of cylinder?
>> I have this code: I know it is quite ugly though :)
>> Thanks all
>> Sean

examples/novice/N03 gives an example of random beam.
 See README and PrimaryGeneratorAction class.

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