Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
75 words
An apparatus for producing tomographic images of an object irradiated by a plurality of rays of collimated radiation transmitted through said object, comprising: (a) an imaging detector that measures the attenuated transmitted radiation after it has passed through the object, said detector including an energy convertor, (b) means for obtaining the projection data from said transmitted radiation, and (c) means for computing a reconstructed image of attenuation coefficients of said object from said projection data.
Claim 2
Independent Claim
75 words
An apparatus for producing tomographic images of an object irradiated by a plurality of rays of collimated radiation transmitted through said object, comprising: (a) an imaging detector that measures the attenuated transmitted radiation after it has passed through the object, said detector including an energy convertor, (b) means for obtaining the projection data from said transmitted radiation, and (c) means for computing a reconstructed image of attenuation coefficients of said object from said projection data.
Claim 3
Dependent Claim
25 words
An apparatus according to claim 1, wherein said imaging detector is an electro-optical detector, further comprising an image format altering device and a read-out device.
Claim 4
Dependent Claim
22 words
An apparatus according to claim 2, wherein the active pixels of the electro-optical detector have a detective quantum efficiency greater than .05.
Claim 5
Dependent Claim
40 words
An apparatus according to claim 2, wherein the active pixels of said electro-optical detector have a total signal dependent background less than 10 percent of the signal from the unattenuated x-ray beam and a useful dynamic range greater than 10.
Claim 6
Dependent Claim
26 words
An.apparatus according to claim 2, wherein the active pixels of said electro-optical detector have a non-uniformity of response between adjacent active pixels of less than 755.
Claim 7
Dependent Claim
29 words
An apparatus according to claim 2, wherein the active pixels of said electro-optical detector have deviations of geometric linearity that is less than 10 pixels in the recorded image.
Claim 8
Independent Claim
25 words
An apparatus according to any preceding claim, further comprising a source of radiation for irradiating said object by said plurality of rays of collimated radiation.
Claim 9
Dependent Claim
13 words
An apparatus according to claim 7, wherein said source of radiation is x-rays.
Claim 10
Dependent Claim
28 words
An apparatus according to claim 7 or 8 as appended directly or indirectly to claim 2, wherein said source of radiation is rigidly connected to said electro-optical detector.
Claim 11
Independent Claim
21 words
An apparatus according to any preceding claim, wherein either said object or said source of radiation is rotatable about an axis.