CCD-world: CCD cleaning

[Clive Standley]

The following was posted to CCD-world:

This is not directly relevant to CCDs, but the CO2 snow technique has
been used by NASA to clean UV optics. The results were very good!

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-----Original Message-----
From: owner-CCD-world at astro.ku.dk [mailto:owner-CCD-world at astro.ku.dk]On
Behalf Of Hopkinson, Gordon
Sent: Thursday, June 24, 1999 5:34 AM
To: CCD-world at astro.ku.dk
Subject: RE: CCD-world: CCD cleaning


The following was posted to CCD-world:

Hello CCD World

I'd be interested to hear about the bad results from using a single-hair
brush.  I had been led to believe it was a good idea.

I have dug out my old file of memos from Jim Janesick (I never throw
anything away !) and there was a note to Jim from Loren Acton at Lockheed.
This had results of an investigation into using C02 snow  for the SXT
instrument.  This was way back in June 1991.  I don't know if anyone has
used the technique since.  I can fax the memo if requested.

Best regards
Sira Electro-Optics Ltd
Gordon Hopkinson

gordon_hopkinson at siraeo.co.uk


> ----------
> From: 	Roy Tucker[SMTP:tucker at noao.edu]
> Reply To: 	CCD-world at astro.ku.dk
> Sent: 	24 June 1999 00:38
> To: 	CCD-world at astro.ku.dk
> Subject: 	CCD-world: CCD cleaning
>
> The following was posted to CCD-world:
>
> Ladies and Gentlemen of the forum,
>
>      We'll be using 60 Hz frame rate CCD cameras in our solar
> instrumentation. Unfortunately, we'll have to remove the glass from the
> sensor package so there will be a danger of getting dust on the imager.
> I've heard suggestions about single-hair camel's hair brushes but I've had
> bad results with such. Does anyone have alternative suggestions for
> removing those tenacious little particles? Has anyone ever experimented
> with CO2 snow guns such as are offered by Va-Tran Systems of Chula Vista,
> California? Thanks for any help.
>
> 					Best regards,
> 					  - Roy Tucker
> - -- CCD-world -- --
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>
- -- 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/
- -- 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/