TH94006A - An examination using X-rays, which are both transmitted simultaneously and close to each other, and reproduce scattered images. - Google Patents

Abstract

The invention DC60 offers an X-ray imaging inspection system for bags and packaging, the transmission imaging is performed using a fan-shaped beam and a modular detector while the image is generated. Dispersion was performed with the analyzed pencil-shaped beams, with the two rays being agile at the same time. The cross-beam interpolation was reduced by a combination of shielding, detector designation. Scatter, Positioning and Orientation And image processing, image processing, subtracts the measured radiation scattered from the beam, the transmission into the scatter detector, which reduces Cross insertion

Claims (1)

Disclaimer (all) which will not appear on the advertisement page: Edit 25/10/2019 No disclaimer. --------------- ------ 12/14/2018 ------ (OCR) Page 8 of 10 pages or any other device containing instructions that It can be operated by such a processor. But not limited to these devices In any other form Of this invention The crossover between the transmission imaging subsystem and the reverse diffusion imaging subsystem is minimized by a combination of parallel blades, shielding material, and backward diffusion detector orientation. As shown in the 100 system in Figure 3, 120 objects were examined, such as packaging or bags. First, it was conveyed through a belt 123 via a fan-shaped X-ray beam. 125 Note the following improvements, which are superior to the systems in Figure 1 below: (a) The fast surface of the 140 back diffusion detector can be angled towards point 143. Yes, the distribution signal is reversed after being released from this section. This geometry maximizes the detection of 135 back diffuse beams while minimizing the cross-beam detection from the transmissive beam. This geometry also eliminates the need for a parallel adapter impeller on the left detector. All 175 other surfaces of the back diffusion detector may be lined with a shielding material such as lead to facilitate the inspection. Minimum detection of residual X-rays. (B) A single vertical propeller 150 protects the agile front of the right backward scatter detector from detecting radiation scattered away from the beam. 125 (c) ) Lead shielding material 170 under the transport belt 123 near the transmission beam shields the left-hand back diffuse detector 140 from detecting the radiation scattered from the transmission beam (d ) The 180 parallel adjuster in front of the transmission detector prevents radiation scattered from the transmission beam leaving the front of the transmission detector 130 from reaching the back diffuse detector. 140 aspect ratio correction Since the transmission image and the reverse distribution image are obtained using two different methods, the image typically has different aspect ratios. Thus, the same object can appear as ------------ ------ 21/03/2018 ------ (OCR) Page 1 of 4 pages. 1.System for examining objects Where the system has the following components: a. A radiation source, a low source, emits a fan-shaped beam of penetrating radiation; b. A segmented array of the detecting element for measuring the intensity of Penetrating radiation C. The second radiation source emits a pencil-shaped ray in the penetrating ray analysis d. At least the scatter detector. Dua for detecting penetrating radiation emitted from the body. Pencil-shaped radiation analyzed by the object and e. Processor, memory and display device. Where that memory contains instructions Allow the processor to Remove the background signal from the signal measured by such diffuse detector. Where the ground signal The latter was measured by a scatter detector when the pencil beam in the scan did not shine. Lit the object This generates the corrected measured distribution signal and displays the aforementioned modified measured distribution signal and the measured transmission signal from the row. The segmented order of the detectors for use in object inspection, shown on 2. System according to claim 1, where the radiation source, the indentification source, the fan-shaped beam and the light source The second radiation source, the pencil-shaped radiation emitter in the scan, is the same radiation source 3. System according to claim 1, where at least the scatter detector has a mechanical part. For adjusting the parallel penetrating rays In that the penetrating radiation from the pencil-shaped radiation in the analysis was Special detection 4. System according to claim 1, where it detects at least scattering, has enough horizontal face segments. Where the face in such a plane is sensitive to incident radiation The page in the horizontal plane has a page 2 of a number of 4 pages, the effects are perpendicular to the said page. And where the line perpendicular to the page is oriented strongly enough The incident point of the pencil-shaped radiation in the analysis of the object 5. System according to claim 4, where at least one surface of the dispersion detector In addition to the horizontal face, it is shielded to reduce the detection of penetrating radiation from the fan beam. 6. The system according to claim 1 also has a barrier section placed between the fan beam and the fan beam. body Detect at least one distribution Whereby the signal measured by the diffuse detector is due to The fan-shaped beam is reduced 7. System according to claim 6, where the barrier is a curtain arranged parallel enough to the fan-shaped beam 8. System according to claim 6, where the barrier is a shielding material. A swing that is placed very parallel. Equivalent to fan beam 9. System according to claim 6 where the barrier is a shielding material arranged so perpendicular to the fan beam 1 0. System according to claim 1, where the memory There is also a command to make the processor. Adjust the image frame aspect ratio and size of the measured transmission signal and the jitter signal. The measured distribution has been corrected where the size and shape of such objects appear to be similar in display devices. Measured transmission signal with in display device Modified distribution signal 1 1. System according to claim 1, where the segmented hierarchy of the detector element has The part is the one element that measures radiation in the second energy range and the second element that measures radiation. In the second power phase 1 2. System according to claim 11, where the memory still has an instruction to allow the processor to Determine the effective atomic number of at least one part of an object using measurements from The second set element and the measure from the second set. And display the image of the object at least one The segment represents the effective atomic number of the section, displayed on the display device page 3 of the number 4. Page 1 3. System according to claim 1, where the segmented array of the detecting elements is displayed on page 3 of the display device. have The parallel modulator to reduce the penetrating radiation of the scattered fan beam from the segmented array. Of detectors and falls onto the dispersion detectors 1 4. System for object inspection Where the above system has the following components: a. A radiation source, a low source, emits a fan-shaped beam of penetrating radiation; b. A segmented array of the detector element for measuring the radiation intensity. The intensity of the penetrating radiation Penetrating that is transmitted by an object from a radiation source Where the above rows have an adjuster C. The second radiation source emits a pencil-shaped beam in the analysis of penetrating radiation d. At least the scatter detector for detection. Catches the penetrating rays that spread from the body Pencil-shaped radiation in the scan was analyzed by Tang said. While the dispersion detectors also have a A mechanism for blocking radiation scattered from the said fan beam, and e. Processors, memory and display devices. Where the said memory contains instructions Allows the processor to say Remove the signal after the measured signal from the said diffuse detector. Where the background signal Dang is measured by a scatter detector when the second radiation source does not illuminate the object. Creating The measured distribution signal has been corrected and Displays the corrected measured distribution signal result and the measured transmission signal from the row. A segmented sequence of detectors for use in the inspection of the object. Displayed on the display device 1. 5. System according to claim 14, where the radiation source, the weak source, the fan-shaped radiation beam and The second radiation source emitting a pencil-shaped beam in the analysis is the same radiation source. Page 4 of the number 4. Page 1 6. System according to claim 14, where the segmented array of the constituent elements is the same. Detect has The second component measures radiation in the energy range on the front and the second element measures radiation. During the second energy And \ ', where the memory still has one command segment, making 1 for the processor. Adjust the image frame ratio and size of the measured transmission signal and the measured distribution signal. Revised Provided that the size and shape of objects appear to be similar in display devices. Measured transmission signal and in the display device, the measured distribution signal has been modified. Determine the effective atomic number of an object at least part by using measurements from The element \ 'consists of the front and the measurement from the \' element consists of the second and displays the image result of at least part of the object, showing the effective atomic number of the part 4 displayed on the display device. ------------ 1.System for examining objects Such a system consists of a. A first radiation source which emits a fan-shaped beam of penetrating radiation; b. A segmented array of detectors for measuring penetrating radiation intensity. A penetrating object that is passed through a material by a first radiation source; c. A second source, which emits a pencil-shaped beam in the penetrating radiation analysis sweep; d. One or more scatter detectors for detection The penetrating radiation that was scattered From a pencil-shaped beam to scan by objects and c. Processor, memory, and display device. In which the memory that contains the instructions which Make the processor Removes the background signal from the signal being measured from the scatter detector. Background signal Such radiation was measured by the scatter detection when the pencil beam in the analysis sweep did not illuminate the object. Thus, it forms the corrected measured broadcast signal and displays the edited measured spread signal and the measured transmission signal from the row. Segmented order of detectors for use in object inspection shown on display device.