Table 1 Three different molecular beam sources, and a selection of their characteristics
From: Optimal beam sources for Stark decelerators in collision experiments: a tutorial review
| Â | Opening | Opening time | Operating | Operating | Nozzle | Pressure source |
|---|---|---|---|---|---|---|
|  | mechanism | FWHM (μs) | voltage (V) | current (A) | diameter (mm) | chamber (mbar) |
General Valve | solenoid | 80 - 150 | 300 | 1 | 1.0 | 4 · 10 −5 |
Jordan Valve | current loop | 50 - 60 | 25 | 4000 | 0.5 | 2 · 10 −5 |
Nijmegen Pulsed Valve | Lorentz force | 15 - 25 | 10 - 15 | 400 - 1000 | 0.5 | 2 · 10 −6 |