US4362937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-ray radiation source photographing device
Assignee: Doryokuro Kakunenryo Kaihatsu Jigyodan
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Filing: 1980-11-25
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Granted: 1982-12-07
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Expires: 2000-11-25
Abstract
Abstract An alpha-ray radiation source photographing device comprising a glove box having an optical window formed in a part of a wall thereof, alpha-ray radiation scintillator, on which an alpha-ray radiation source-containing sample is placed, disposed within the glove box and adjacent to the optical window, and photographing mechanism which includes an optical multiplier tube, a close-up lens system and a camera and is disposed outside the glove box such as to oppose the scintillator. According to this photographing device, the postion of the alpha-ray radiation source can be photographed from the outside of the glove box without inserting a film therein.
Inventors
- 👤 Katsuaki Nakajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:37
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/161; G01T1/164; G01T1/1641; G03; G03B; G03B42/00; G03B42/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
An alpha-ray radiation source photographing device comprising a glove box, an optical window formed in a part of a wall of said glove box, an alpha-ray radiation scintillator, on which an alpha-ray radiation source-containing sample is placed, disposed within said glove box and adjacent to said optical window, and a photographing mechanism disposed outside said glove box such as to oppose said scintillator, said photographing mechanism including an optical multiplier tube, a close-up lens system and a camera, whereby alpha-ray radiation from said sample impinges upon said scintillator to emit light, and the emitted light advances through said optical window to the outside of said glove box and is amplified by said optical multiplier tube and photographed by said camera via said close-up lens system.
Claim 2
Dependent Claim
125 words
An alpha-ray radiation source photographing device comprising a glove box, an optical window formed in a part of a wall of said glove box, an alpha-ray radiation scintillator, on which an alpha-ray radiation source-containing sample is placed, disposed within said glove box and adjacent to said optical window, and a photographing mechanism disposed outside said glove box such as to oppose said scintillator, said photographing mechanism including an optical multiplier tube, a close-up lens system and a camera, whereby alpha-ray radiation from said sample impinges upon said scintillator to emit light, and the emitted light advances through said optical window to the outside of said glove box and is amplified by said optical multiplier tube and photographed by said camera via said close-up lens system.
Claim 3
Dependent Claim
62 words
The alpha-ray radiation source photographing device according to claim 1, wherein said optical window comprises an optical flat having an inner surface facing the interior of said glove box, said optical flat being air-tightly set with a seal means in an opening provided in a wall of said glove box, said scintillator being placed on said inner surface of said optical flat.
Claim 4
Dependent Claim
32 words
The alpha-ray radiation source photographing device according to claim 1, wherein said glove box is provided therein with a releasable light shielding cover for enclosing said scintillator and said sample placed thereon.
Claim 5
Dependent Claim
34 words
The alpha-ray radiation source photographing device according to claim 1, wherein said photographing mechanism further includes an objective lens system disposed between said optical multiplier tube and said optical window of the glove box.
Claim 6
Dependent Claim
33 words
The alpha-ray radiation source photographing device according to claim 4, wherein the space between said objective lens system and said optical window of said glove box is enclosed with a light shielding bellows.
Claim 7
Dependent Claim
16 words
The alpha-ray radiation source photographing device according to claim 1, wherein said scintillator consists of ZnS.
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) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |