X-ray detector
View Patent ↗An X-ray detector includes a top receiving container in which one or more subjects are disposed, an X-ray detection unit that detects shadow images of the one or more subjects when X-rays are radiated to the one or more subjects and calculates an X-ray radiation angle of the radiated X-rays based on the shadow images of the one or more subjects, and a bottom receiving container having a receiving space in which the X-ray detection unit is received.
1. An X-ray detector, comprising:
a top receiving container in which one or more subjects are disposed;
an X-ray detection unit that detects shadow images of the one or more subjects when X-rays are radiated to the one or more subjects, and calculates an X-ray radiation angle of the radiated X-rays based on the shadow images of the one or more subjects; and
a bottom receiving container having a receiving space in which the X-ray detection unit is received.
2. The X-ray detector as claimed in claim 1 , wherein the top receiving container includes a first cover, the first cover having a first region and a second region, and the second region surrounding the first region.
3. The X-ray detector as claimed in claim 2 , wherein:
a surface of the first region of the first cover includes one or more grooves,
and the one or more subjects are disposed in the grooves.
4. The X-ray detector as claimed in claim 2 , wherein the one or more subjects are disposed in the first region.
5. The X-ray detector as claimed in claim 2 , wherein the one or more subjects are disposed adjacent to a boundary between the first region and the second region.
6. The X-ray detector as claimed in claim 2 , wherein:
the top receiving container further includes a second cover positioned on the first cover, and
the one or more subjects are disposed in the second cover.
7. The X-ray detector as claimed in claim 1 , wherein the X-ray detection unit includes:
a scintillator that converts incident X-rays into light;
a sensor panel that senses an intensity of the light from the scintillator;
a memory that stores shadow information of the one or more subjects based on a predetermined X-ray radiation angle between the X-rays and a normal to the sensor panel; and
an operation unit that calculates the X-ray radiation angle of the radiated X-rays based on the shadow images of the one or more subjects formed on the sensor panel and the shadow information stored in the memory.
8. The X-ray detector as claimed in claim 7 , wherein the operation unit detects the shadow information corresponding, to the shadow images of the one or more subjects formed on the sensor panel from the memory and calculates the X-ray radiation angle of the radiated X-rays based on the detected shadow information.
9. The X-ray detector as claimed in claim 1 , wherein the X-ray detection unit includes:
a memory that stores shadow information of the one or more subjects when a predetermined X-ray radiation angle is 90 degrees, and
an operation unit that calculates the X-ray radiation angle of the radiated X-rays based on the shadow information of the one or more subjects when the predetermined X-ray radiation angle is 90 degrees and based on the shadow images of the one or more subjects formed on a sensor panel.
10. The X-ray detector as claimed in claim 9 , wherein:
the memory stores vertical distances between the one or more subjects and the sensor panel, and
the operation unit calculates the X-ray radiation angle of the radiated X-rays based on the vertical distances, the shadow information of the one or more subjects when the predetermined X-ray radiation angle is 90 degrees, and the shadow images of the one or more subjects formed on the sensor panel.
11. The X-ray detector as claimed in claim 10 , wherein:
the operation unit calculates the X-ray radiation angle of the radiated X-rays using a trigonometric function in which the vertical distances and a position difference between the shadow information of the one or more subjects when the predetermined X-ray radiation angle is 90 degrees and the shadow images of the one or more subjects formed on the sensor panel are used as sides of a triangle.
12. The X-ray detector as claimed in claim 11 , wherein the shadow information includes subject shadow images depending on the predetermined X-ray radiation angle.
13. The X-ray detector as claimed in claim 1 , wherein the one or more subjects are made of lead or tungsten.
14. An X-ray detector, comprising:
a bottom receiving container having a bottom plate and a sidewall defining a receiving space;
an X-ray detection unit that is accommodated in the receiving space, the X-ray detecting unit detecting a shadow image of the sidewall when X-rays are radiated to the X-ray detector and calculating an X-ray radiation angle of the radiated X-rays based on the shadow image of the sidewall; and
a top receiving container disposed on the sidewall.
15. The X-ray detector as claimed in claim 14 , wherein the X-ray detection unit includes:
a scintillator that converts incident X-rays into light;
a sensor panel that senses the intensity of the light from the scintillator;
a memory that stores shadow information of the sidewall based on a predetermined X-ray radiation angle; and
an operation unit that calculates the X-ray radiation angle of the radiated X-rays based on the shadow image of the sidewall formed on the sensor panel and the shadow information stored in the memory.
16. The X-ray detector as claimed in claim 15 , wherein the bottom receiving container includes a protrusion protruding from the sidewall.
17. The X-ray detector as claimed in claim 15 , wherein the sidewall is “C” shaped.
18. The X-ray detector as claimed in claim 15 , wherein the shadow information includes a shadow image of the sidewall depending on the predetermined X-ray radiation angle.
19. The X-ray detector as claimed in claim 14 , wherein the X-ray detection unit includes:
a memory that stores a height of the sidewall from a sensor panel, and
an operation unit that calculates the X-ray radiation angle of the radiated X-rays based on the height of the sidewall and the shadow image of the sidewall formed on the sensor panel.
20. The X-ray detector as claimed in claim 19 , wherein the operation unit calculates the X-ray radiation angle of the radiated X-rays using a trigonometric function in which the height of the sidewall and a length of the shadow of the sidewall are used as sides of a triangle.
21. An X-ray detector, comprising:
a bottom receiving container having a bottom plate and a sidewall defining a receiving space;
a top receiving container disposed on the sidewall and having a first region and a second region;
an X-ray detection unit that is accommodated in the receiving space, the X-ray detection unit detecting a shadow image of the second region when X-rays are radiated to the X-ray detector, and calculating an X-ray radiation angle of the radiated X-rays based on the shadow image of the second region.
22. The X-ray detector as claimed in claim 21 , wherein:
the second region surrounds the first region, and
the second region is made of lead or tungsten.
23. The X-ray detector as claimed in claim 21 , wherein the X-ray detection unit includes:
a scintillator that converts incident X-rays into light;
a sensor panel that senses an intensity of the light from the scintillator;
a memory that stores shadow information of the second region based on a predetermined X-ray radiation angle; and
an operation unit that calculates the X-ray radiation angle of the radiated X-rays based on the shadow image of the second region formed on the sensor panel and based on the shadow information stored in the memory.
24. The X-ray detector as claimed in claim 21 , wherein the X-ray detection unit includes:
a memory that stores a height of the sidewall from a sensor panel to the sidewall, and
an operation unit that calculates the X-ray radiation angle of the radiated X-rays based on the height of the sidewall and the shadow image of the second region formed on the sensor panel.