[3DEM] Carbon evaporator

[Bill Tivol]

On Apr 12, 2005, at 8:22 PM, a.mitra at auckland.ac.nz wrote:

>       We need to replace our old carbon evaporator and are 
> deliberating on two
> quotes:
>        1) Cressington 208C, turbo pump equipped - specs say it goes to 
> ~10-6
> millibars
>
>        2) EMITECH K950X - specs say it goes to ~10-5 millibar
>
> We will appreciate your comments on the abovementioned products if you 
> have
> used them or know of products that you consider more reliable, better 
> (vacuum)
> and approximately in similar price range.
>
Dear Alok,
	We have used the Cressington 208 for evaporating both carbon and 
metals for about two years, and we are very pleased with its 
performance.  It does not get to ~10^-6, however, but to ~10^-5.  In 
fact, the lowest mark on the vacuum gauge is 6x10^-6.
Yours,
Bill Tivol, PhD
EM Scientist and Manager
Cryo-Electron Microscopy Facility
Broad Center, Mail Code 114-96
California Institute of Technology
Pasadena CA 91125
(626) 395-8833
tivol at caltech.edu