US 2014/0151569 A1 · METHOD AND APPARATUS FOR ANALYSIS OF SAMPLES

Abstract

A method and a device examine a sample with radiation emitted from a radiation source, which is directed to the sample carried by a sample holder via a beam-forming unit and detected by a detector and evaluated in an evaluating unit. Prior to the examination of the sample, at least one of the following components, including the radiation source, beam-forming unit, sample holder, detector, and a primary beam stop, are oriented and/or positioned in terms of spatial location in relation to at least one of the other components and/or in relation to a predefined fixed point and/or in relation to the optical path with a control unit via actuating drives. The radiation intensity measured by the detector, in a predefined detector range, and/or a value derived therefrom is used for establishing a control variable conferred from the control unit to the actuating drives assigned to the components.

Claims17

Dependent claims

A method for examining a sample with radiation emitted from a radiation source selected from the group consisting of a neutron radiation source and an X-ray radiation source, directed to the sample carried by a sample holder via at least one beam-forming unit, detected by a detector and evaluated in an evaluating unit, which comprises the steps of:

prior to an examination of the sample, performing, via a control device and actuating devices, at least one of orienting and positioning components coupled to the actuating devices and selected from the group consisting of the radiation source, the beam-forming unit, the sample holder, the detector, and a primary beam stop disposed upstream of the detector, in terms of at least one of a spatial location in relation to at least other ones of the components, in relation to a predefined fixed point, or in relation to an optical path;
and
using a radiation intensity measured by the detector or a value derived from the radiation intensity for establishing a control variable conferred from the control unit to the actuating drives assigned to the components.

A device for radiographic examination of samples, comprising:

a radiation source selected from the group consisting of a neutron radiation source and an X-ray radiation source;
at least one beam-forming unit;
a detector;
a sample holder disposed between said radiation source and said detector;
at least one actuating drive for at least one of orientating or positioning at least one component selected from the group consisting of said radiation source, said beam-forming unit, said beam limiting unit, said sample holder and said detector, said at least one component connected and adjusted by said at least one actuating drive;
and
a control device outputting actuating signals supplied to said at least one actuating drive, said control unit having a further input for receiving measured values of radiation intensities determined in at least one predefined detector range of said detector or values derived therefrom and produces the actuating signals based on the values of the radiation intensities measured.

4 more elements

Dependencies are inferred from the claim text.

Method and apparatus for analysis of samples

Life of this patent

Method and apparatus for analysis of samples

Life of this patent

Abstract

Claims17