US3609369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutron generator with radiation acceleration
Assignee: INSTITUTTUL DE FIZICA ATOMICA
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Filing: 1968-04-09
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Granted: 1971-09-28
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Expires: 1988-04-09
Abstract
Abstract Method of and apparatus for generating high neutron flux at a sample zone maintained at atmospheric pressure and surrounded by an annular evacuated generator housing along whose inner peripheral wall is provided a neutron emitter target. An annular array of ion-particle sources or an annular ion source surrounds the annular target to direct radial charged-particle beams thereagainst. The acceleration may be effected by radially spaced accelerator plates disposed between the source and the target within the chamber or by radio waves supplied to the chamber; the latter is then constituted as a coaxial resonant cavity.
Inventors
- 👤 Petrica Croitoru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:30
CPC Classifications
H; H05; H05H; H05H9/00; B; B07; B07B; B07B13/00; H05H3/00; H05H3/06; H05H7/00; H05H7/14; H05H7/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
118 words
A high-intensity neutron generator comprising an annular evacuated housing having an annular inner wall adapted to surround a sample at ambient pressure; an annular neutronemissive target activatable by accelerated charged particles disposed along said wall for subjecting said sample to highintensity neutron flux; a plurality of charged-particle sources spaced radially from said target for radially directing chargedparticle beams substantially uniformly against said target and across the evacuated space between said source and said target; and particle-accelerator means for radially accelerating the particles of said beam, said particle-accelerator means including radially spaced generally annular electrodes disposed in said space around said target and provided with openings passing said beam and means for applying an accelerating field across said electrode.
Claim 2
Dependent Claim
118 words
A high-intensity neutron generator comprising an annular evacuated housing having an annular inner wall adapted to surround a sample at ambient pressure; an annular neutronemissive target activatable by accelerated charged particles disposed along said wall for subjecting said sample to highintensity neutron flux; a plurality of charged-particle sources spaced radially from said target for radially directing chargedparticle beams substantially uniformly against said target and across the evacuated space between said source and said target; and particle-accelerator means for radially accelerating the particles of said beam, said particle-accelerator means including radially spaced generally annular electrodes disposed in said space around said target and provided with openings passing said beam and means for applying an accelerating field across said electrode.
Claim 3
Dependent Claim
23 words
The generator defined in claim 1, further comprising continuously operable pumping means connected with said housing for maintaining said space under reduced pressure.
Claim 4
Dependent Claim
22 words
The generator defined in claim 1, further comprising a gettering means in said housing for maintaining said space at a reduced pressure.
Claim 5
Dependent Claim
23 words
The generator defined in claim 1 wherein said source is an annular ionized-particle source directing charged particles against said target generally uniformly therealong.
Claim 6
Dependent Claim
30 words
The generator defined in claim 1 wherein said charged-particle source includes a plurality of angularly spaced ionized particle sources trained on said target for producing overlapping charged-particle beams impinging thereagainst.
Claim 7
Dependent Claim
25 words
The generator defined in claim 1 wherein said source includes a plurality of axially spaced ionzied-particle sources training coplanar axially overlapping beams against said target.
Claim 8
Dependent Claim
21 words
The generator defined in claim 1 wherein said particle-accelerating means includes means for sustaining a particle-accelerating radiofrequency field in said space.
Claim 9
Dependent Claim
12 words
The generator defined in claim 1 wherein said target is generally cylindrical.
Claim 10
Dependent Claim
102 words
A high-intensity neutron generator comprising an annular evacuated housing having an annular inner wall adapted to surround a sample at ambient pressure; an annular neutron-emissive target activatable by accelerated charged particles disposed along said wall for subjecting said sample to high-intensity neutron flux; at least one annular charged-particle source spaced radially from said target for radially directing at least one charged-particle beam substantially uniformly against said target and across the evacuated space between said source and said target, said annular ionized-particle source directing charged particles against said target generAlly uniformly therealong; and particle-accelerator means for radially accelerating the particles of said beam.
Claim 11
Dependent Claim
102 words
A high-intensity neutron generator comprising an annular evacuated housing having an annular inner wall adapted to surround a sample at ambient pressure; an annular neutron-emissive target activatable by accelerated charged particles disposed along said wall for subjecting said sample to high-intensity neutron flux; at least one annular charged-particle source spaced radially from said target for radially directing at least one charged-particle beam substantially uniformly against said target and across the evacuated space between said source and said target, said annular ionized-particle source directing charged particles against said target generAlly uniformly therealong; and particle-accelerator means for radially accelerating the particles of said beam.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |