US3569705A
Expired / Lapsed
US
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Method for producing polarized atoms
Assignee: United States Atomic Energy Commission
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Filing: 1969-08-01
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Granted: 1971-03-09
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Expires: 1989-08-01
Abstract
Abstract A polarized beam of atoms is generated by passing in a partial vacuum a collimated atomic beam through a magnetically saturated monocrystalline material parallel to a lattice channel of said foil. The monocrystalline material effects a charge-transfer reaction with the atomic beam to produce a polarized atomic beam, the nuclei of which are subsequently polarized by hyperfine interaction in a weak external magnetic dipole field.
Inventors
- 👤 Manfred S Kaminsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:57
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/16
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
33 words
The method according to claim 1 wherein said atomic beam is collimated to provide a maximum half-angle of divergence from the axis of transmission at the surface of said monocrystalline material of 0.01*.
Claim 2
Dependent Claim
12 words
The method according to claim 1 wherein said monocrystalline material is ferromagnetic.
Claim 3
Dependent Claim
73 words
The method according to claim 1 further including generating a magnetic field, and passing said atomic beam through said magnetic field after transmission through said monocrystalline material a distance in the direction of transmission of said atomic beam sufficient to provide a transit time therefor greater than the Lamor precession time of the nuclear magnetic moment of the nuclei of the atomic beam to effect nuclear polarization of said beam by hyperfine interaction.
Claim 4
Dependent Claim
25 words
The method according to claim 4 wherein said magnetic field is generated in the same directional sense as the magnetic saturation of said monocrystalline material.
Claim 5
Independent Claim
92 words
A method for generating a polarized beam of atoms comprising magnetically saturating a monocrystalline material, generating a partial vacuum, generating a beam of atoms, collimating said atomic beam, transmitting said collimated beam of atoms in said partial vacuum through said material parallel to a lattice channel in said material and normal to the direction of magnetic saturation, said monocrystalline material effecting a charge-transfer reaction with said atomic beam to produce a polarized atomic beam, and passing said polarized atomic beam through a magnetic field to polarize the nuclei thereof by hyperfine interaction.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |