[Sneap] terminal current surge problem

[Rajan Joshi]

Hi Riyad

When faraday cup current and low energy column current fluctuates, does
terminal voltage also fluctuates? If yes, does the column current
fluctuation is related to terminal voltage fluctuation?


-- 
Rajan Joshi <rajan at iuac.ernet.in>

On Tue, 2008-08-19 at 23:54 -0700, riyad sha wrote:
> The host for the 2008 SNEAP annual meeting is the University of Michigan at Ann Arbor.  The meeting dates are: October: 12 - 17, 2008.
> The meeting web link is: http://www-ners.engin.umich.edu/research/Mibl/Sneap/2008.htm
> 
> Hi sneaper’s: 
> 
> During the operation of the 3 Mv tandem accelerator, we experience the
> following: 
> 
> When we apply the terminal voltage, the current highly fluctuate in
> the faraday cup before the accelerator tank (when it is closed or
> opened) even the source is off in the same time we noticed a
> decreasing in the law energy column current  … this phenomenon
>  disappears after a time  but as we go up with the terminal voltage
> value it appears again !!! 
> 
> so any one has experience this problem or have an idea ,could help me.
> 
> 
> 
> 
> Riyad Shaban
> Electronic engineer 
> in AECS (atomic energy commission of syria)
> Accelerators Section
> mob:0963-932617224
> 
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