From: Emilia Basile <emilia.basile_at_iss.infn.it>

Date: Tue, 24 Mar 2009 19:35:50 +0100 (CET)

Date: Tue, 24 Mar 2009 19:35:50 +0100 (CET)

Dear Fluka developers and users,

thanks for clearing up my previous questions.

Now, I've another question about USRBDX results.

I've to use the results of output parametrization for a new input file,

and I've some doubts about the beam divergence.

I requested in input the current distribution across a plane which is

perpendicular to the beam direction.

Integrating the double differential current distribution over the

energy, I should get current distribution in theta, where theta is

related to the solid angle omega by means:

theta=2 arcsin(omega/4 pi)^0,5

Fitting the current distribution in theta with a Gaussian function, I get

the FWHM of the Gaussian angular distribution. Is it correct writing it in

the input file as new beam divergence?

Thanks in advance,

Emilia

Received on Tue Mar 24 2009 - 21:44:57 CET

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