Orbitron Ionization Gauge
- 1 June 1964
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 35 (6), 661-665
- https://doi.org/10.1063/1.1746679
Abstract
An ion gauge with high ionization efficiency and low input power is described. In this gauge, called the orbitron, electrons are injected by a small tungsten filament into the electrostatic field between two concentric cylinders, with energies and angular momenta such that a relatively long mean free path is achieved. Only 4 μA electron current is needed to produce the same ion current obtained from 8 mA emission in a conventional Bayard‐Alpert gauge. X‐ray and photocurrents are held to low values by locating the ion collector remotely from the main source of light and x rays. The ion current is linear with pressure below 1×10−5 Torr and has been tested down to 5×10−11 Torr. The lower pressure limit has not yet been determined.Keywords
This publication has 1 reference indexed in Scilit:
- Charged Particle Orbits in a Logarithmic PotentialJournal of Applied Physics, 1963