- #1
poul
- 17
- 0
I think i have looked at like 20-30 web pages, and i can't find a simple step-by-step explanation of the operational principle.
I know, that when a rare gas like Helium, relaxes from an excited state two characteristic emission lines occur. But how do you excite the gas in the first place?
I know you can excite it, by shooting some electrons through the gas, but we have no free electron in the system, since the electric field should not be strong enough to ionize the helium atom by itself.
I know, that when a rare gas like Helium, relaxes from an excited state two characteristic emission lines occur. But how do you excite the gas in the first place?
I know you can excite it, by shooting some electrons through the gas, but we have no free electron in the system, since the electric field should not be strong enough to ionize the helium atom by itself.