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Coaxial charged particle energy analyzer
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 2011 |
| Description | A non-dispersive electrostatic energy analyzer for electrons and other charged particles having a generally coaxial structure of a sequentially arranged sections of an electrostatic lens to focus the beam through an iris and preferably including an ellipsoidally shaped input grid for collimating a wide acceptance beam from a charged-particle source, an electrostatic high-pass filter including a planar exit grid, and an electrostatic low-pass filter. The low-pass filter is configured to reflect low-energy particles back towards a charged particle detector located within the low-pass filter. Each section comprises multiple tubular or conical electrodes arranged about the central axis. The voltages on the lens are scanned to place a selected energy band of the accepted beam at a selected energy at the iris. Voltages on the high-pass and low-pass filters remain substantially fixed during the scan. |
| File Size | 885580 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110011179 |
| Archival Resource Key | ark:/13960/t4vj0j08n |
| Language | English |
| Publisher Date | 2011-04-19 |
| Access Restriction | Open |
| Subject Keyword | Electronics And Electrical Engineering Electric Potential Patents Low Pass Filters High Pass Filters Dispersing Particle Energy Collimation Radiation Counters Charged Particles Electrostatics Electrostatic Probes Lenses Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
