Patent Document ID: 20070189440
Application ID: 11672809
Patent Status: 0

Claim One:
1. Method for estimating radiation scattered in a two-dimensional detector ( 2 ), characterised in that it consists of: obtaining, using an identical radiation ( 5 ), a direct irradiation measurement of the detector ( 2 ), a first indirect irradiation measurement of the detector by interposing an absorber ( 3 ) composed of a two-dimensional array ( 4 ) of radiation-absorbing elements at a first distance (L) from the detector ( 2 ), and a second indirect irradiation measurement of the detector by interposing the absorber ( 3 ) at a second distance from the detector ( 2 ); deducing a first scattered radiation image and a second scattered radiation image on the detector ( 2 ) from the first and second indirect irradiation measurement; calculating a first parameter (σ) associated with a span of the radiation scattered in the detector by a comparison of the first scattered radiation image and the second scattered radiation image, and a second parameter (DC 0 ) associated with an intensity of the radiation scattered in the detector by a comparison of the direct irradiation image and one of the indirect irradiation images; and, when a radiation (Φ direct ) of an object to be studied has been measured, correcting this radiation by a deconvolution calculation using the parameters.