Patent US3833810A successfully refreshed from Google Patents.
US3833810A
Expired / Lapsed
US
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Method of x-ray diffraction topography of monocrystals and apparatus for effecting same
Assignee: Individual
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Filing: 1973-01-24
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Granted: 1974-09-03
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Expires: 1993-01-24
Abstract
Abstract A method of X-ray diffraction topography of monocrystals, consisting in irradiation of every point of an investigated area of the cross-section of a monocrystal by X-rays and separation of the radiation diffracted at a specific angle from said every point of the investigated area of the cross-section of the monocrystal, simultaneously for all these points of the investigated area. An apparatus for X-ray diffraction topography of monocrystals, realizing the above method, comprising a source of X-rays and an investigated monocrystal, a collimator, a radiation detector and a means for recording the topogram of the monocrystal, positioned successively in the path of the Xradiation. The collimator, of which the direction of collimation is oriented at a specified orientation angle in relation to the crystallographic axes of the monocrystal, is in the form of a two-dimensional matrix of parallel capillaries.
Inventors
- 👤 N Komyak
- 👤 V Ljuttsau
- 👤 V Efanov
- 👤 N Rabodzei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:37
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/02; G21K1/025; G01; G01N; G01N23/00; G01N23/20; G01N23/207
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
72 words
A method of X-ray diffraction topography of monocrystals, comprising the steps of: irradiating every point of an investigated area of the cross-section of a monocrystal by Xrays; separating the radiation diffracted at a specified angle from every point of the investigated area of the cross-section of the monocrystal simultaneously for all the points of the investigated area from the radiation diffracted at all other angles; and providing a topogram of the monocrystal.
Claim 2
Independent Claim
72 words
A method of X-ray diffraction topography of monocrystals, comprising the steps of: irradiating every point of an investigated area of the cross-section of a monocrystal by Xrays; separating the radiation diffracted at a specified angle from every point of the investigated area of the cross-section of the monocrystal simultaneously for all the points of the investigated area from the radiation diffracted at all other angles; and providing a topogram of the monocrystal.
Claim 3
Independent Claim
172 words
An apparatus for X-ray diffraction topography of monocrystals, said apparatus comprising: a source of x-rays; an investigated monocrystal positioned behind said source of X-rays in the path of the radiaTion issuing therefrom - so that said radiation is diffracted by said monocrystal; a main collimator positioned behind said investigated monocrystal in the path of said defracted X-radiation being formed as a two-dimensional matrix of parallel capillaries the direction of collimation of said main collimator being oriented at a given angle to the crystallographic axes of said investigated monocrystal and through which the radiation diffracted at the given angle to the crystallographic axes of said investigated monocrystal passes from each point of the cross-section of said investigated monocrystal with the exclusion of radiation diffracted at all other angles; a detector positioned behind said main collimator in the path of said diffracted X-radiation so that said diffracted X-radiation falls on said detector; and means for recording topogram of said monocrystal, said recording means positioned behind said detector in the path of said diffracted X-radiation.
Claim 4
Independent Claim
172 words
An apparatus for X-ray diffraction topography of monocrystals, said apparatus comprising: a source of x-rays; an investigated monocrystal positioned behind said source of X-rays in the path of the radiaTion issuing therefrom - so that said radiation is diffracted by said monocrystal; a main collimator positioned behind said investigated monocrystal in the path of said defracted X-radiation being formed as a two-dimensional matrix of parallel capillaries the direction of collimation of said main collimator being oriented at a given angle to the crystallographic axes of said investigated monocrystal and through which the radiation diffracted at the given angle to the crystallographic axes of said investigated monocrystal passes from each point of the cross-section of said investigated monocrystal with the exclusion of radiation diffracted at all other angles; a detector positioned behind said main collimator in the path of said diffracted X-radiation so that said diffracted X-radiation falls on said detector; and means for recording topogram of said monocrystal, said recording means positioned behind said detector in the path of said diffracted X-radiation.
Claim 5
Dependent Claim
84 words
An apparatus as claimed in claim 2, further comprising an auxiliary collimator positioned in front of said investigated monocrystal in the path of said X-radiation, the direction of collimation of said auxiliary collimator being oriented at an orientation angle in relation to said crystallographic axes of said investigated monocrystal which is equal to said orientation angle of said main collimator so that said X-radiation passing through said auxiliary collimator is made to pass, after having been diffracted on said monocrystal, through said main collimator.
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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |