ELECTRON MULTI METH/APP
Assignee
Filed
Feb 22, 1971
Granted
Nov 23, 1999
Location
SEPULVEDA CA US
Abstract
A channel-type electron multiplier and a method and apparatus for rounding off the sharp circular edges, fissures and protrusions at the ends of the holes in the glass plate. In order to do this a temperature gradient is produced through the plate so that only a small portion is heated above the glass softening temperature. The plate thus does not collapse or melt. The said rounded edges improve performance by reducing field emission, noise and photocathode contamination. An electrically heated nichrome wire provides heat pulses at regular intervals. An alternative method utilizes an optical lap after core glass in the plate holes has been partially etched out.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Feb 4, 1982
Rescinded
Oct 23, 1998
Duration
16 years, 8 months
Inventor
- 1RICHARD K. ORTHUBER
Record Details
- Patent number
- US 5990601
- Application
- 05117698
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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