US3649827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helical three-stage isotope separation
Assignee: United States Atomic Energy Commission
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Filing: 1970-08-13
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Granted: 1972-03-14
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Expires: 1990-08-13
Abstract
Abstract An isotope separator of the type having an evacuated tank, a magnetic field through the tank, and an ion source and a receiver wherein the ion source is orientated at a slight angle to the magnetic field lines such that the stream of ions exiting from the ion source spiral along the magnetic field in a helical path, producing a three-stage separation after 540* of rotation, and the desired isotopic ions are collected in a receiver located at the 540* focus.
Inventors
- 👤 William A Bell Jr
- 👤 Ray L Johnson Jr
- 👤 Allen M Veach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:34
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/20; B; B01; B01D; B01D59/00; B01D59/44; B01D59/48
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
25 words
The separator set forth in claim 1, wherein said first ion orienting means is adapted to be mechanically positioned to provide for said slight angle.
Claim 2
Dependent Claim
39 words
The separator set forth in claim 1, wherein said first ion orienting means comprises a pair of magnet shims which are mounted on opposite sides of the extraction slit of said ion source to provide for said slight angle.
Claim 3
Dependent Claim
35 words
The separator set forth in claim 3, wherein said ion source extraction slit is canted at an angle of about 1.5* with respect to the direcTion of the magnetic field provided by said magnet shims.
Claim 4
Dependent Claim
46 words
The separator set forth in claim 1, wherein said magnetic field is of a selected value in the range from 100 to 3,000 gauss, and said tank is evacuated to a pressure of a selected value in the range from 10 5 to 10 6 Torr.
Claim 5
Dependent Claim
16 words
The separator set forth in claim 5, wherein said slight angle is about 3* 20 min.
Claim 6
Dependent Claim
39 words
The separator set forth in claim 6, wherein said first ion orienting means comprises a pair of magnet shims which are mounted on opposite sides of the extraction slit of said ion source to provide for said slight angle.
Claim 7
Dependent Claim
35 words
The separator set forth in claim 7, wherein said ion source extraction slit is canted at an angle of about 1.5* with respect to the direction of the magnetic field provided by said magnet shims.
Claim 8
Dependent Claim
76 words
The separator set forth in claim 8, and further including a pair of separator probes connected to separate meters in the vicinity of each of said 45* and 360* baffle plates and a separate meter connected to a receiver pocket at each of said 180* and 540* positions, said meters functioning as an aid in the proper positioning of said baffle plates and said receiver plate with respect to the path of said desired isotopic beam.
References Cited (Backward Citations)
US2698905A
Cited
US2713123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |