US3557370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gamma ray laser having a low temperature closed resonating cavity
Assignee: Dawson Alexander Inc
•
Filing: 1968-02-14
•
Granted: 1971-01-19
•
Expires: 1988-02-14
Abstract
Abstract Gamma ray laser device, wherein a coherent beam of gamma radiation is generated through stimulation of gamma transitions in excited atomic nuclei in a biologically shielded and low temperature closed resonating cavity, and wherein said atomic nuclei are externally excited by subjection thereof to radiation produced by electron decomposition.
Inventors
- 👤 Lawrence J Piekenbrock
- 👤 Edward Camp Tibbals Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:23
CPC Classifications
H; H01; H01S; H01S4/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
21 words
The method as set forth in claim 1 wherein said atomic nuclei are subjected to electromagnetic radiation produced by electron decomposition.
Claim 2
Dependent Claim
22 words
The method as set forth in claim 1 wherein said atomic nuclei are subjected to positive energy radiation produced by electron decomposition.
Claim 3
Dependent Claim
85 words
Apparatus for producing coherent gamma radiation comprising: crystal means adapted to produce gamma transitions in excited atomic nuclei; means to match emission process gamma transition energies to absorption process gamma transition energies; means for selectively directing emitted gamma radiation within a closed circuit resonating cavity for stimulating additional gamma transitions to effect emission of coherent gamma radiation; and means for externally exciting said crystal means to create a population inversion as a metastable state by subjecting said crystal means to radiation produced by electron decomposition.
Claim 4
Dependent Claim
19 words
Apparatus as set forth in claim 4 wherein said crystal is subjected to electromagnetic radiation produced by electron decomposition.
Claim 5
Dependent Claim
20 words
Apparatus as set forth in claim 4 wherein said crystal is subjected to positive energy radiation produced by electron decomposition.
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |