Electron optic device for a beam propagating perpendicularly to crossed magnetic and electric fields
United States Patent 2680823
Inventors:
Oscar, Dohler
Alfred, Lerbs
Publication Date:
06/08/1954
International Classes:
H01J25/42; H01J25/44; H01J25/00
US Patent References:
| 2536150 | Electrode system for trochotrons | | | |