ion source doesn't work
- Werner Engel
- Posts: 145
- Joined: Sun Aug 18, 2013 11:51 am
- Real name: Werner Engel
- Location: Vienna, Austria
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Re: ion source doesn't work
yes, please Keep us informed and also make pictures!
- Dennis P Brown
- Posts: 3189
- Joined: Sun May 20, 2012 10:46 am
- Real name: Dennis Brown
Re: ion source doesn't work
Always want to hear more about a system. Thanks for sharing what you have done. Remember to have at least a baffling system to reduce back streaming of DP oil into your system.
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- Posts: 11
- Joined: Mon Jul 28, 2014 2:19 pm
- Real name: DanielSandner
- Location: Bavaria, Germany
Re: ion source doesn't work
Hello everybody,
sorry for the late reply but I had many exams at school, but in a few weeks there are holidays.
Now I use the oil diffusion pump, luckily I bought it with a suitable baffle, for a hour every day, and the ion source works pretty well. To allow longer runs i have to improve my cooling system.
As you can see in the picture I have a plasma discharge at around 1 mbar and beyond the capillary a pressure lower than 10^-3 mbar. The lightning disc is a piece of an fluorescent screen to test the intensity of the beam depending on the distance from the capillary. I use a flyback transformer, now without resistor but with limited power on the primary, and the tube keeps pretty cool even after 30 seconds, and you can see the ion beam easily.
cheers, Daniel Sandner
sorry for the late reply but I had many exams at school, but in a few weeks there are holidays.
Now I use the oil diffusion pump, luckily I bought it with a suitable baffle, for a hour every day, and the ion source works pretty well. To allow longer runs i have to improve my cooling system.
As you can see in the picture I have a plasma discharge at around 1 mbar and beyond the capillary a pressure lower than 10^-3 mbar. The lightning disc is a piece of an fluorescent screen to test the intensity of the beam depending on the distance from the capillary. I use a flyback transformer, now without resistor but with limited power on the primary, and the tube keeps pretty cool even after 30 seconds, and you can see the ion beam easily.
cheers, Daniel Sandner
- Dennis P Brown
- Posts: 3189
- Joined: Sun May 20, 2012 10:46 am
- Real name: Dennis Brown
Re: ion source doesn't work
Looks very good. Glad this has progressed so well.