Pulsed molecular beams: A lower limit on pulse duration for fully developed supersonic expansions
Abstract
We derive an expression for Δtmin, the mimimum pulse duration (''valve open time'') required if a pulsed nozzle is to produce a supersonic beam comparably ''cold'' to that obtained from a continuous source.(AIP)
- Publication:
-
Journal of Chemical Physics
- Pub Date:
- September 1981
- DOI:
- 10.1063/1.442272
- Bibcode:
- 1981JChPh..75.2467S
- Keywords:
-
- Gas Expansion;
- Molecular Beams;
- Nozzle Design;
- Pulse Duration;
- Supersonic Nozzles;
- Flow Velocity;
- Gas Density;
- Mean Free Path;
- Molecular Collisions;
- Nozzle Flow;
- Velocity Distribution;
- Atomic and Molecular Physics