[Gate-users] digitizer - spblurring

[Marcin Balcerzyk]

Dear Claudia.

I hope that is not an insult, but recall that description in section 8.2.12
of User Guide (v.3.0.0) says that resolution is defined by sigma value of
Gaussian distribution. Usually, people use Full Width at Half Maximum, which
is related to sigma as FWHM=2*sqrt(ln(4)))=approximately 2.3548. For formula
look at www.wikipedia.org at "Normal distribution".

Best regards

Marcin Balcerzyk

Message: 3
Date: Mon, 4 May 2009 21:29:39 +0000
From: Cl?udia Brambilla Brambilla <claudinharbb at hotmail.com>
Subject: [Gate-users] digitizer - spblurring
To: <gate-users at lists.healthgrid.org>
Message-ID: <BLU138-W15AC64001839CE51BE4DD2CC680 at phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"



Dear Gate Users,

DIGITIZER 
Somebody Could help me with the function spblurring?
My SPECT system doesn't reproduce the spatial resolution similar the true
system.
I'd like to know the physical formulae about the blurring... No the source
code but the math for do this blurring and the variables to do this (I know
this function use the gaussian, but like to know How is this work?).

Thanks,

Cl?udia

*****