(meteorobs) FW: Atmospheric Cosmic Dust Capture

[Roberto G.]

>From: "Bias, Peter V" <pbias at flsouthern.edu>
>To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
>Sent: Monday, November 06, 2006 6:00 PM
>Subject: (meteorobs) FW: Atmospheric Cosmic Dust Capture
>

>Hello All,
>
>Many of you helped Mr. Nissen with your suggestions a couple of weeks
>ago and he has asked for a little more information (see below). If any
>of you can help with these new problems, I will again pass the
>suggestions along to him. Thanks!
>
>   Pete Bias
>
>-----Original Message-----
>From: jayson nissen [mailto:jayson_nissen at yahoo.com] 
>Sent: Wednesday, November 01, 2006 5:59 PM
>To: Bias, Peter V
>Subject: RE: Atmospheric Cosmic Dust Capture

>Thanks for the help.  I figured it was the least I
>could do to update you with our current plan since
>many of the contacts and ideas you gave me set the
>ground work for it.
>  We are going to try to capture the particle by using
>a positive displacement pump or air
>entrainment to capture them in a propylene glycol
>adhesive.
>  The two problems we have are:
>1) We need a means of moving 1 cubic meter of air per
>second at 2 mbars atmospheric pressure.

??? Probably I not understand your machine: if you want 
the mass of  1 cubic meter per second you can need of a 
surface of a squadre meter moved at 500 m/sec (supersonic),
perharps you want only a volume of 1 cubic meter per 
second at 2 mbars, in this case it's the speed of wind in the 
air to change each second many cubic meters per second for 
each square meter of the adhesive apparate, you can calcutate 
how many cubic meter you has examined with an 
anemometer and a record linked to him.

>2) We need a capture medium to adhere to the
>particles.  It must be soluble, not contaminate the
>particles, freeze below -50 C and not sublimate at
>pressures of 1 mbar.
>  Any more help you could provide would be gratly
>appreciated.
>  We did some math and figure that we should be able
>to capture roughly 10 particles in the flight now we
>just need to get it engineered.
>                      Thank you
>                      Jayson Nissen

Why you need of a medium that freeze below -50 C?
I suggest a thin surface of ice of distilled water or
a surface of aerogel as in Stardust spacecraft
or one series of metallic net for mosquitos but with finer meshes
covered propylene glycol adhesive that it can to be
cleared easy after the fly.
Best greetings.
Roberto Gorelli