CCD-world: Please help TASS

[Tom Droege]

The following was posted to CCD-world:

Thanks for all the help.  I will reply in more detail later.  Several of
you suggested Zeolite.  A quick web search turned up a table containing 126
types of zeolites.  I want one that really likes water.  Any suggestions
about where to buy it?  I need to know the type to buy and a convenient
place to get it.  It is not so easy to buy chemicals these days.  From the
suggestions, this should be more active than Drierite?  Is Zeolite
something I could find at Fermilab?

The configuration that I have uses a 1/4" pipe fitting, a 6" section of
tubing, then a 3/4" x 6" tube of Drierite.  It is a standard item in the
Cole Parmer catalog.  I could easily remove the Drierite and replace it
with Zeolite.  This large container should have a lot of surface area.  It
is also very convenient to change.  The disadvantage of this configuration
is that it is a "long distance" away from the enclosure.  The camera
enclosure was designed to be as small as possible and still hold the
electronics.  There is little room in the enclosure for a Zeolite
container, and it would be very difficult to open up to change it.  

Thanks for any help. 

Tom Droege
- -- CCD-world -- --
CCD-world is fully moderated. Send posts to CCD-world at astro.ku.dk
Standard replies will go to the list; address personal replies manually.
For more information, please go to:  http://www.not.iac.es/CCD-world/