US3813555A
Expired / Lapsed
US
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Method and means for producing coherent x-ray and gamma-ray emissions
Assignee: United States Atomic Energy Commission
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Filing: 1973-05-16
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Granted: 1974-05-28
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Expires: 1993-05-16
Abstract
Abstract A method and apparatus for producing coherent x-ray and gammaray emissions by taking advantage of doppler shift phenomena and the relativistic effects of time dilation, wave vector angle compression, and length compression associated with an active optical lasing medium moving at a uniform velocity very nearly equal to the speed of light.
Inventors
- 👤 J Viecelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:46
CPC Classifications
H; H01; H01S; H01S4/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
150 words
A method for producing coherent x-ray and gamma-ray emissions comprising the steps of: generating an ion beam which can be induced into laser action to cause the emission of a beam of coherent radiation having a characteristic frequency; accelerating the ion beam to a relativistic velocity with respect to a stationary reference point; and inducing laser action in the accelerated ion beam by directing an optical pumping beam through the accelerated ion beam at an angle theta with respect to a fixed reference frame, said angle theta being defined by the formula: Nu (pump frequency in beam frame)/ Nu (pump frequency in lab frame) X square root 1 - V2/C 1 - V/C COS theta where V beam velocity and C velocity of light causing the emission of a beam of coherent radiation having a frequency greater than the characteristic frequency when measured with respect to the stationary reference point.
Claim 2
Independent Claim
150 words
A method for producing coherent x-ray and gamma-ray emissions comprising the steps of: generating an ion beam which can be induced into laser action to cause the emission of a beam of coherent radiation having a characteristic frequency; accelerating the ion beam to a relativistic velocity with respect to a stationary reference point; and inducing laser action in the accelerated ion beam by directing an optical pumping beam through the accelerated ion beam at an angle theta with respect to a fixed reference frame, said angle theta being defined by the formula: Nu (pump frequency in beam frame)/ Nu (pump frequency in lab frame) X square root 1 - V2/C 1 - V/C COS theta where V beam velocity and C velocity of light causing the emission of a beam of coherent radiation having a frequency greater than the characteristic frequency when measured with respect to the stationary reference point.
Claim 3
Dependent Claim
25 words
The method defined in claim 1, wherein said step of accelerating the ion beam is accomplished by directing the beam through a superconductor microwave accelerator.
Claim 4
Dependent Claim
81 words
The method defined in claim 1, wherein said step of directing an optical pumping beam through the accelerated ion beam is carried out by passing a laser beam through the ion beam at an angle theta with respect to a fixed reference frame, said angle theta being defined by the formula: Nu (pump frequency in beam frame)/ Nu (pump frequency in lab frame) Square Root 1 -v2/C 1 - v/C COS theta where Nu beam velocity and C velocity of light.
Claim 5
Independent Claim
159 words
An apparatus for producing coherent x-ray and gamma-ray emissions comprising: means for producing an ion beam of medium capable of being induced into laser action; means for accelerating the ion beam to a uniform velocity approaching the speed of light with respect to a stationary reference frame, means for inducing laser action in the accelerated ion beam, thereby causing emission of a beam of coherent radiation having a frequency greater than the characteristic frequency of the ion beam material when measured with respect to the stationary reference frame, said laser action inducing means comprising means for producing an optical pump beam and directing same through the accelerated ion beam at an angle theta with respect to the stationary reference frame, said angle theta being defined by the formula: Nu (pump frequency in beam frame)/ Nu (pump frequency in lab frame) Square Root 1 - v2/C 1 - v/C COS theta where Nu beam velocity and C velocity of light.
Claim 6
Independent Claim
159 words
An apparatus for producing coherent x-ray and gamma-ray emissions comprising: means for producing an ion beam of medium capable of being induced into laser action; means for accelerating the ion beam to a uniform velocity approaching the speed of light with respect to a stationary reference frame, means for inducing laser action in the accelerated ion beam, thereby causing emission of a beam of coherent radiation having a frequency greater than the characteristic frequency of the ion beam material when measured with respect to the stationary reference frame, said laser action inducing means comprising means for producing an optical pump beam and directing same through the accelerated ion beam at an angle theta with respect to the stationary reference frame, said angle theta being defined by the formula: Nu (pump frequency in beam frame)/ Nu (pump frequency in lab frame) Square Root 1 - v2/C 1 - v/C COS theta where Nu beam velocity and C velocity of light.
Claim 7
Dependent Claim
26 words
The apparatus defined in claim 4, wherein said medium is selected from the group consisting of argon, krypton, xenon, neon, mercury, oxygen, boron, carbon, and cadmium.
Claim 8
Dependent Claim
15 words
The apparatus defined in claim 4, wherein said accelerating means comprises a superconductor microwave accelerator.
Claim 9
Dependent Claim
16 words
The apparatus defined in claim 4, wherein said optical pumping beam producing means comprises a laser.
References Cited (Backward Citations)
US3388314A
Cited
US3511227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |