From: "theog" <theog@sron.ruu.nl>
Organization: Space Research Organization Neth.
To: Dan Dewey <dd>
Date: Tue, 7 Oct 1997 15:04:29 +0200
Subject: Re: marx parameters for LETG
Reply-To: theog@sron.ruu.nl
Cc: "SRON_MARS/BERTB"@saturn.sron.ruu.nl
Priority: normal
In-Reply-To: <199710031714.NAA01116@spectra.mit.edu>
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Dear Dan,

 I like to repond for vignetting factors:

Vignetting factor due to module geometry (circular gratings):
Shell                 Vignetting factor
------                 --------------------
outer                  0.81
second               0.84
third                  0.85
inner                 0.88

The other parameters seem to o.k.  to me,

best regards,

Theo Gunsing.