Problem(Sigh....) with the Raith

James Conway jwc at snf.stanford.edu
Tue Feb 18 08:45:35 PST 2003


Hello ALL,

We are on it and will  know if we are back up by noon today.

IEE-488 bus dropped after an EHT trip from the FE-gun area.  Lets see 
what else may have been damaged.
LEO has been requested to come in and look at this problem.

James

arvind sundaramurthy wrote:

> hi james,
> I was working on the raith tonight. I logged in, set  'z', the voltage 
> to 30Kev and aperture to 10um. I then started working on my layout. An 
> error "Error Number 519: EHT Set Extractor Trip" popped up on the SEM 
> monitor. There was an error on the raith status report " Error reading 
> IEEE 488". The stage did not respond to any movement of the joystick. 
> I closed all programs on the raith and the SEM column program & then 
> tried to log back on. But raith gave me the following error:"Error PZT 
> control EDA2/3,piezo hardware not connected" when I opened it and then 
> the message " Error reading IEEE 488" was found on the status report.
>  
> I tried unloading my sample and it wouldn't let me do it. I think it 
> is down till you get to see whats happening with it. I hope its 
> something that's fixable at the earliest.
>  
> arvind






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