Re: About Dose Equivalent

From: Stefan Roesler <sroesler_at_mail.cern.ch>
Date: Sun, 30 Aug 2009 17:15:20 +0200

Dear Hantao Jing

Your input and conversion looks correct. What seems a bit unusual to me is
that your are calculating *prompt* dose equivalent (i.e. whole bosy dose
to a person) *inside* a huge aluminum cylinder (3meters radius, 5meters
length). Is this what you want?

All units in FLUKA are per primary by default, except for cases where the
users defines explicitly a beam particle rate in the input (e.g. an
irradiation profile for the calculation of residual dose rates).

Best regards
Stefan

On Thu, 27 Aug 2009, Hantao Jing wrote:

> Dear FLUKA experts,
> I want to obtain the dose equivalent through the usrbin card. the setting
> for usrbin card is,
> USRBIN 10.0 240.0 57.0 200.0 200.0 200.0TEDepoit
> USRBIN -200.0 -200.0 -200.0 80.0 80.0 80.0&
> .
> After I obtain the results, I want to converse the unit to mSv/hour. The
> accelerator paramters is,
> particles of per pulse: 1.6*10^13ppp,
> pulse frequency: 1Hz.
>
> The unit for dose equivalent from the manual is pSv/primary. Then I multiple
> fluka results by the following factor,
> (1.6*10^(13))*3600*10^(-9),
> where the 3600 is 3600 seconds, 10^(-9) is the factor conversing the unit of
> pSv to mSv.
>
> But the I find the results is very larger than that I could image. What I done
> is right? From the tutorial of '7th FLUKA Course, Paris Sept.29-Oct.3, 2008',
> I find the unit for dose equivalent is pSv in page 10 instead of pSv/primary.
> Which is an error?
>
> My input file is in attachment. Thanks very much in advance!
>
> Hantao Jing
> 2009-8-27
>
>

-- 
___________________________________
Stefan Roesler
CERN, DG-SCR
CH-1211 Geneva 23
Switzerland
Phone:  +41-22-7679891
Fax:    +41-22-7669639
E-mail: Stefan.Roesler_at_cern.ch
Received on Sun Aug 30 2009 - 18:22:58 CEST

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