Patent US4974134A successfully refreshed from Google Patents.
Patent US3955093A successfully refreshed from Google Patents.
US3955093A
Expired / Lapsed
US
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Targets for the production of radioisotopes and method of assembly
Assignee: Energy Research and Development Administration ERDA
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Filing: 1975-04-25
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Granted: 1976-05-04
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Expires: 1995-04-25
Abstract
Abstract A target for preparation of radioisotopes by nuclear bombardment, and a method for its assembly are provided. A metallic sample to be bombarded is enclosed within a metallic support structure and the resulting target subjected to heat and pressure to effect diffusion bonds therebetween. The bonded target is capable of withstanding prolonged exposure to nuclear bombardment without thermal damage to the sample.
Inventors
- 👤 Thomas C. Quinby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:30
CPC Classifications
G; G21; G21G; G21G1/00; G21G1/04; G21G1/10; H; H05; H05H; H05H6/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
70 words
A method of assembling targets for the production of radioisotopes by the nuclear reaction of a metallic sample with incident particles, said method comprising enclosing said metallic sample within a metallic support structure and bonding said sample to the interior surface of said support structure by intermetallic diffusion bonding, said support structure having sufficient thermal conductivity to prevent melting of said sample from heat dissipated therein by said incident particles.
Claim 2
Independent Claim
70 words
A method of assembling targets for the production of radioisotopes by the nuclear reaction of a metallic sample with incident particles, said method comprising enclosing said metallic sample within a metallic support structure and bonding said sample to the interior surface of said support structure by intermetallic diffusion bonding, said support structure having sufficient thermal conductivity to prevent melting of said sample from heat dissipated therein by said incident particles.
Claim 3
Dependent Claim
25 words
The method of claim 1 wherein said support structure is formed of metal selected from the group consisting of Al, Cu, Au, Ag, and Ta.
Claim 4
Dependent Claim
46 words
The method of claim 1 wherein said support structure comprises a backing plate and a cover plate spaced apart to define a target sample cavity therebetween, said backing plate and said cover plate being bound together at the periphery of said cavity forming a leakproof seal.
Claim 5
Dependent Claim
10 words
The method of claim 1 wherein said sample is uranium.
Claim 6
Dependent Claim
66 words
A target for the production of radioisotopes by the nuclear reaction of a metallic sample with incident particles, said target comprising a metallic sample within a metallic support structure, said sample being bound to the interior surface of said support structure by intermetallic diffusion bonding, said support structure having sufficient thermal conductivity to prevent melting of said sample from heat dissipated therein by said incident particles.
Claim 7
Dependent Claim
66 words
A target for the production of radioisotopes by the nuclear reaction of a metallic sample with incident particles, said target comprising a metallic sample within a metallic support structure, said sample being bound to the interior surface of said support structure by intermetallic diffusion bonding, said support structure having sufficient thermal conductivity to prevent melting of said sample from heat dissipated therein by said incident particles.
Claim 8
Dependent Claim
43 words
The target of claim 5 wherein said support structure comprises a backing plate and a cover plate spaced apart to define a target sample cavity therebetween, said backing plate and said cover plate being bound together at the periphery forming a leakproof seal.
References Cited (Backward Citations)
US3640597A
Cited
US3836785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |