Patent EP0095759A1 successfully refreshed from Google Patents.
EP0095759A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Detector system for measuring the intensity of a radiation scattered at a predetermined angle from a sample irradiated at a specified angle of incidence
Assignee: Kozponti Elelmiszeripari Kutato Intezet
•
Filing: 1983-05-27
•
Granted: —
•
Expires: 2003-05-27
Abstract
Abstract The detector system comprises a path to transmit an incident beam of radiation onto the sample (10) and at least one radiation sensor (15, 16) positioned in the path of the radiation scattered from the sample (10). The detector system has a dome positioned in the path of the radiation scattered from the sample (10). The dome is provided with at least one concave reflecting surface (11, 12) located in a range corresponding to the predetermined scattering angle, and the or each concave reflecting surface forms the image of the sample (10) onto a radiation sensor (15, 16). For example a 0°/45° detector system is preferably arranged so that in the middle of the dome an opening (19) is provided suitable to let the incident beam of radiation fall onto the sample (10), and the dome is provided with at least two concave reflecting surfaces (11, 12) located symmetrically with respect to the sample (10). A 45°/0° detector system can be accomplished so that the dome is a member (44) provided with a rotationally symmetrical concave reflecting surface (41) positioned opposite the sample (10), radiation sensor (45) is disposed at the tip of said concave reflecting surface (41), and in the path of the incident beam there are an outside reflecting surface of revolution (42) of that member (44) as well as a further reflecting surface of revolution (43), the latter reflecting the beam of radiation coming from said outside reflecting surface (42) onto the sample (10) at the specified angle of incidence.
Inventors
- 👤 Károly Dr. Kaffka
- 👤 Béla Dr. Nádai
- 👤 András Czabaffy
- 👤 Loránd Dr. Horváth
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 13:56
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/4738; G01N21/474; G01N2021/4704; G01N2201/00; G01N2201/06; G01N2201/064
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
135 words
A detector system for measuring the intensity of a radiation scattered at a predetermined angle from a sample (10) irradiated at a specified angle of incidence, said detector system comprising a path to transmit an incident beam of radiation onto the sample (10) and at least one radiation sensor (15,16, 17,18; 35,36,...; 45) positioned in the path of the radiation scattered from the sample (10) at the predetermined angle, characterized by comprising a dome positioned in the path of the radiation scattered from the sample (10), said dome being provided with at least one concave reflecting surface (11,12, 13,14; 31,32, ...; 41) located in a range corresponding to the predetermined scattering angle, the or each concave reflecting surface (11,12,13,14; 31,32,...; 41) forming the image of the sample (10) onto a radiation sensor (15,16,17,18; 35,36,...; 45).
Claim 2
Dependent Claim
135 words
A detector system for measuring the intensity of a radiation scattered at a predetermined angle from a sample (10) irradiated at a specified angle of incidence, said detector system comprising a path to transmit an incident beam of radiation onto the sample (10) and at least one radiation sensor (15,16, 17,18; 35,36,...; 45) positioned in the path of the radiation scattered from the sample (10) at the predetermined angle, characterized by comprising a dome positioned in the path of the radiation scattered from the sample (10), said dome being provided with at least one concave reflecting surface (11,12, 13,14; 31,32, ...; 41) located in a range corresponding to the predetermined scattering angle, the or each concave reflecting surface (11,12,13,14; 31,32,...; 41) forming the image of the sample (10) onto a radiation sensor (15,16,17,18; 35,36,...; 45).
Claim 3
Dependent Claim
34 words
The detector system according to claim 1, characterized in that the dome is provided with at least one concave reflecting surface (11,12,13,14; 31,32,...; 41) completely covering the range corresponding to the predetermined scattering angle.
Claim 4
Dependent Claim
58 words
The detector system according to claim 1 or 2, characterized in that the dome has an opening (19) formed in the middle of it to let the incident beam of radiation fall onto the sample (10), and the dome is provided with at least two concave reflecting surfaces (11,12,13,14; 31,32,...) located symmetrically with respect to the sample (10).
Claim 5
Dependent Claim
104 words
The detector system according to claim 3, characterized in that the path of the incident beam of radiation and the dome together with the radiation sensors (15,16,17,18; 35,36,...) can be fixed in two different.positions with respect to each other, in one of said positions for reflection measurements of the sample (10) the path of the incident beam of radiation is provided by the opening (19) formed in the middle of the dome, whereas in the other position for transmission measurements of the sample (10) the path of the incident beam of radiation is provided on a side of the sample (10) opposite the dome.
Claim 6
Dependent Claim
24 words
The detector system according to claim 4, characterized by having a cover adapted to close the opening (19) in the middle of the dome.
Claim 7
Dependent Claim
46 words
The detector system according to claim 4 or 5, characterized in that the dome together with the radiation sensors (15,16,17,18; 35,36,...) attached to it is supported rotatably through an angle of 180° around a shaft perpendicular to the axis (T) of the incident beam of radiation.
Claim 8
Dependent Claim
42 words
The detector system according to any of claims 3 to 6, characterized by shaping the concave reflecting surfaces (11,12, 13,14; 31,32,...) with their lines of intersections lying outside the boundary surface of the incident beam of radiation transmitted through the opening (19).
Claim 9
Dependent Claim
53 words
The detector system according to claim 1 or 2, characterized in that for transmission measurements of the sample (10) the path of the incident beam of radiation is provided on a side of the sample (10) opposite the dome,and the dome is provided with at least two concave reflecting surfaces (11,12, 13,14; 31,32,...).
Claim 10
Dependent Claim
31 words
The detector system according to any of claims 1 to 8, characterized in that the dome has four concave reflecting surfaces (11,12,13,14; 31,32,...) located symmterically with respect to the sample (10).
Claim 11
Dependent Claim
49 words
The detector system according to any of claims 1 to 9, characterized in that the concave reflecting surfaces (11, 12,13,14; 31,32,...) are spherical surfaces located symmterically with respect to the sample (10) with their center points (K) lying equidistant from the center of the sample (10) along a circle.
Claim 12
Dependent Claim
46 words
The detector system according to any of claims 1 to 10, characterized by positioning the concave reflecting surfaces (11,12,13,14; 31,32,...) and the radiation sensors (15,16,17,18; 35,36,...) in such a manner that a reduced image of the sample (10) is formed on the radiation sensors (15,16,17,18; 35,36,...).
Claim 13
Dependent Claim
32 words
The detector system according to any of claims 1 to 11, characterized in that the sensing surfaces of the radiation sensors (15,16,17,18) are substantially parallel to the surface of the sample (10).
Claim 14
Dependent Claim
32 words
The detector system according to any of claims 1 to 11, characterized in that the sensing surfaces of the radiation sensors (35,36,...) are substantially perependicular to the surface of the sample (10).
Claim 15
Dependent Claim
30 words
The detector system according to any of claims 1 to 13, characterized by comprising a thermostat device (23) for cooling the dome and keeping its temperature at a constant value.
Claim 16
Dependent Claim
63 words
The detector system according to any of claims 1 to 14, characterized in that the incidence angle of the beam falling on the sample (10) is 0±5°, and the concave reflecting surfaces (11,12,13,14; 31,32,...) within the dome are located in a range corresponding to a scattering angle of 45 ! 5° with respect to the normal of the surface of the sample (10).
Claim 17
Dependent Claim
34 words
The detector system according to any of claims 1 to 15, characterized in that all the inside surfaces of the dome with the exception of the concave reflecting surfaces (11,12, 13,14; 31,32,...) are blackened.
Claim 18
Dependent Claim
114 words
The detector system according to claim 1 or 2, characterized in that the dome is a member (44) provided with a rotationally symmetrical concave reflecting surface (41) positioned opposite the surface of the sample (10), the radiation sensor (45) is disposed at the tip of said concave reflecting surface (41), and in the path of the incident beam of radiation there are an outside reflecting surface of revolution (42) of the member (44) as well as a further reflecting surface of revolution (43) said further reflecting surface of revolution (43) reflecting the beam of radiation coming from said outside reflecting surface of revolution (42) onto the sample (10) at the specified angle of incidence.
Claim 19
Dependent Claim
38 words
The detector system according to claim 17, characterized in that said further reflecting surface of revolution (43) is arranged to reflect the beam of radiation onto the sample (10) at an angle of incidence of 45 ± 5°.
Claim 20
Dependent Claim
33 words
The detector system according to claim 17 or 18, characterized by comprising a thermostat device (23) for cooling said further reflecting surface of revolution (43) and keeping its temperature at a constant value.
Claim 21
Dependent Claim
23 words
The detector system according to claim 14 or 19, characterized in that the thermostat device (23) includes Peltier-elements (20A, 20B) as cooling means.
Claim 22
Dependent Claim
28 words
The detector system according to any of claims 1 to 20, characterized in that said at least one radiation sensor (15,16,17,18; 35,36,...; 45) is a solid state one.
Claim 23
Dependent Claim
29 words
The detector system according to claims 21, characterized in that there are several radiation sensors (15,16,17, 18; 35,36,...), the outputs of which being connected parallel. (4 sheets, 4 figures)
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.