US3234426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for density modulating beams of charged particles
Assignee: Varian Medical Systems Inc
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Filing: 1960-06-10
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Granted: 1966-02-08
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Expires: 1980-06-10
Abstract
No abstract record available.
Inventors
- 👤 Heil Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:08
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/36; H01J23/00; H01J23/16; H01J23/18; H01J23/20; H01J25/02; H01J25/10; H01J25/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
THE METHOD OF OPERATING A BEAM TUBE TO DENSITY MODULATE A NORMALLY HOMOGENEOUS BEAM OF CHARGED PARTICLES, SAID BEAM TUBE INCLUDING MEANS FOR PROJECTING A HOMOGENEOUS BEAM OF CHARGED PARTICLES, A RADIO FREQUENCY INTERACTION STRUCTURE THROUGH WHICH THE BEAM IS PROJECTED, UTILIZATION MEANS FOR EXTRACTING ENERGY FROM THE BEAM, AND COLLECTOR MEANS FOR COLLECTING THE BEAM, SAID METHOD COMPRISING THE STEPS OF ENERGIZING SAID BEAM PROJECTING MEANS TO PROJECT A HOMOGENEOUS BEAM OF CHARGED PARTICLES THROUGH THE INTERACTION STRUCTURE AT A GIVEN VELOCITY (VB), ESTABLISHING TWO ELECTROMAGNETIC WAVES IN SAID INTERACTION STRUCTURE HAVING EQUAL WAVELENGTHS AND DIFFERENT VELOCITIES OF PROPAGATION (V1, V2) ALONG THE AXIS OF SAID BEAM IN SAID STRUCTURE, WHICH VELOCITIES ARE RELATED TO SAID GIVEN VELOCITY AND TO EACH OTHER ACCORDING TO THE FORMULA:
Claim 2
Independent Claim
127 words
THE METHOD OF OPERATING A BEAM TUBE TO DENSITY MODULATE A NORMALLY HOMOGENEOUS BEAM OF CHARGED PARTICLES, SAID BEAM TUBE INCLUDING MEANS FOR PROJECTING A HOMOGENEOUS BEAM OF CHARGED PARTICLES, A RADIO FREQUENCY INTERACTION STRUCTURE THROUGH WHICH THE BEAM IS PROJECTED, UTILIZATION MEANS FOR EXTRACTING ENERGY FROM THE BEAM, AND COLLECTOR MEANS FOR COLLECTING THE BEAM, SAID METHOD COMPRISING THE STEPS OF ENERGIZING SAID BEAM PROJECTING MEANS TO PROJECT A HOMOGENEOUS BEAM OF CHARGED PARTICLES THROUGH THE INTERACTION STRUCTURE AT A GIVEN VELOCITY (VB), ESTABLISHING TWO ELECTROMAGNETIC WAVES IN SAID INTERACTION STRUCTURE HAVING EQUAL WAVELENGTHS AND DIFFERENT VELOCITIES OF PROPAGATION (V1, V2) ALONG THE AXIS OF SAID BEAM IN SAID STRUCTURE, WHICH VELOCITIES ARE RELATED TO SAID GIVEN VELOCITY AND TO EACH OTHER ACCORDING TO THE FORMULA:
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |