FIELD: positioning radiator with respect to object.
SUBSTANCE: newly introduced in proposed positioner are optical wedge installed on laser optical axis for rotation relative to this axis at frequency f ≥ 10 Hz and at distance A from intersection point of X-ray beam and laser axes that equals distance from this point to X-radiator focus; drive for rotating optical wedge; first beam splitter installed on laser optical axis between optical wedge and first butt-end of laser at distance C > A from center of first reflector and at angle β < 45° to laser axis perpendicular to plane formed by laser and X-ray beam axes; second beam splitter made of plexiglas and installed on X-ray beam axis past first reflector at distance B from its center perpendicular to plane formed by X-ray beam and laser axes at angle γ to X-ray beam axis. Distances B and C as well as angles β and γ are interrelated by equations γ = 45° - β and β=c·tg(2β); optical wedge parameters (angle at θ vortex, ray deviation angle δ, and wedge material refractive index) are interrelated by equations δ = θ(n - 1) and δ = α/2, where α is X-radiation angle. This positioner enables estimation of X-rayed object area and also determination of center of this area.
EFFECT: enlarged functional capabilities, facilitated determination of distance from radiator to object.
1 cl, 4 dwg
Title | Year | Author | Number |
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SCANNING LASER X-RAY POSITIONER | 2005 |
|
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LASER LOCALIZER FOR X-RAY EMITTER | 2006 |
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RU2315446C2 |
LASER X-RADIATION LOCALIZER | 2003 |
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RU2237984C1 |
SCANNING LASER POSITIONER FOR X-RADIATION | 2005 |
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RU2297115C1 |
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|
RU2250575C2 |
Authors
Dates
2006-12-10—Published
2005-04-29—Filed