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US3752989A
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Method of producing an intense, high-purity k x-ray beam
Assignee: United States Department of Commerce
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Filing: 1972-01-27
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Granted: 1973-08-14
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Expires: 1992-01-27
Abstract
Abstract This method comprises the steps of bombarding an X-ray target of atomic number Z with a substantially monoenergetic electron beam having an energy in the region from about (Z+0.0014Z3) to about (3Z+0.0092Z3) kev. and collimating into an output beam the X-rays emitted from the target at an angle in the range from about 120* to about 180* with respect to the direction of the electron beam.
Inventors
- 👤 R Placious
- 👤 J Sparrow
- 👤 J Motz
- 👤 C Dick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:18
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
74 words
A method of producing an intense, high-purity K X-ray beam, which comprises: bombarding an X-ray target of material of atomic number Z with a substantially monoenergetic electron beam having an energy in the region from about (Z+0.0014Z3) to about (3Z+0.0092Z3) kev.; and collimating into an output beam the X-rays emitted from the target at an angle in the range from about 120* to about 180* with respect to the direction of the electron beam.
Claim 2
Independent Claim
74 words
A method of producing an intense, high-purity K X-ray beam, which comprises: bombarding an X-ray target of material of atomic number Z with a substantially monoenergetic electron beam having an energy in the region from about (Z+0.0014Z3) to about (3Z+0.0092Z3) kev.; and collimating into an output beam the X-rays emitted from the target at an angle in the range from about 120* to about 180* with respect to the direction of the electron beam.
Claim 3
Dependent Claim
23 words
The method of claim 1 wherein the thickness of the target is in the region from about 0.3 to about 1.0 electron range.
Claim 4
Dependent Claim
30 words
The method of claim 1 wherein the angle of inclination of the target with respect to the electron beam direction is in the range from about 0* to about 45*.
Claim 5
Dependent Claim
44 words
The method of claim 1 and further including the step of deflecting the electron beam prior to incidence on the target to permit access to the X-rays emitted from the target at an angle of about 180* with respect to the electron beam direction.
References Cited (Backward Citations)
US3398307A
Cited
US3567928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |