What does "behind the cathode" mean in canal rays experiments?

[logearav]

Canal rays experimental set up -- a doubt in this

Homework Statement

Please go through my attachment. It has been mentioned that luminous stream of particles were observed behind the cathode.

Homework Equations

Behind the cathode means , Whether right of the cathode or left of the cathode?
Please help revered members

The Attempt at a Solution

 

[Spinnor]

In the picture you supplied, to the right. See,

http://www.google.com/imgres?q=cath...&w=278&h=145&ei=xMN_Tp_YAsfu0gGdifDvCw&zoom=1

and,

http://www.google.com/search?hl=en&...&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi

 

[logearav]

Thanks for the reply Spinnor. I got it now from your links. They are very useful