Radiation therapy detector device, its construction family and use

Abstract

The invention relates to a detector device (14) for radiation medicine, having a detector arrangement (1), characterized in that the detector arrangement (1) has more than two carriers (2) arranged crosswise to one another, and a detector field (7) is provided on each carrier (2). The invention also relates to a construction series of detector devices (14) for radiation medicine and to the use of a detector device (14) for radiation medicine.

Description

Detector devices for radiation therapy, their structure, series, and applications Technical Field

[0001] This invention relates to a detector device for radiation medicine with a detector arrangement structure, its construction series, and its applications. Background Technology

[0002] Detector devices with detector arrangement structures are generally known in the prior art. Such detector devices can be used, for example, in phantoms to determine or check radiation dose or patient planning. These detector devices can also be used for measurements, particularly for the symmetry characterization and / or stability testing of detector devices used in radiation medicine. Summary of the Invention

[0003] The objective of this invention is to improve such detector devices.

[0004] This task is solved by a radiation medical detector device having a detector arrangement structure, characterized in that the detector arrangement structure has more than two carriers arranged in an intersecting manner, each carrier having a detector field, and the intersecting carriers penetrating each other.

[0005] The detector device according to the invention is characterized in that the detector arrangement structure has more than two mutually intersecting carriers, and a detector field is provided on each carrier. In this way, a detector arrangement structure with multiple detectors can be easily manufactured. Furthermore, the detector arrangement structure can be more easily adapted to different resolutions and sizes, for example, by changing the number of intersecting carriers.

[0006] In one embodiment, the detectors of the detector field are configured to determine the radiation dose of ionizing radiation, preferably the radiation dose of X-ray radiation.

[0007] In one embodiment, the carrier accordingly has a printed circuit board. Electrical contact can be easily established in this way. In particular, the carrier can be constructed using a printed circuit board.

[0008] In one implementation, intersecting carriers penetrate each other, and / or intersecting carriers define a consistent detection area.

[0009] In one embodiment, the intersecting carriers are configured to be mutually adhesive and / or plug-in connected and / or one-piece.

[0010] In one embodiment, the carrier has an insertion slot preferably open on one side, in which another of the more than two carriers is inserted, particularly using one insertion slot or the insertion slot of the other carrier.

[0011] A particularly advantageous arrangement is for the carrier and the carrier used for housing to be inserted into each other longitudinally, that is, longitudinally with respect to the axis. This allows the electronic components to be easily positioned at a common end of the detector arrangement structure.

[0012] In one embodiment, a mechanical and / or electrical insertion space is formed on a carrier, and another carrier, preferably laterally inserted into the insertion space along with the carrier for receiving the object, is also inserted into the insertion space. This allows for easy assembly of the detector arrangement structure.

[0013] In one embodiment, the more than two carriers form a two-dimensional grid, particularly the grid comprising two intersecting sets of carriers preferably oriented parallel to each other.

[0014] In one advantageous embodiment, the oriented carrier of the grid has long slots that extend substantially along the entire length of the carrier, wherein the carrier correspondingly has only one narrow, seamless slot area. Intersecting carriers have only short slots, specifically slots that adapt to the seamless slot areas of other carriers, allowing these slots to interlock. An advantage is the ease of designing the detector distribution on the carrier.

[0015] The seamless slot area is located at one end of the detector arrangement structure, which can easily protect the electronic devices set on the carrier in this area from radiation without creating a dead zone from which radiation cannot be measured.

[0016] In one embodiment, the at least two carriers intersect at an intersection line, particularly the intersection line being oriented along the insertion direction of the insertion (Einschub).

[0017] In one embodiment, the carrier is electrically connected on its end side oriented toward the insertion direction.

[0018] In one embodiment, the carrier is accordingly configured as planar.

[0019] In one embodiment, the intermediate space between the carriers is filled or can be filled with material, particularly the material between the carriers is replaceable. In this way, a certain absorption rate can be set, for example, similar to the absorption rate of the human body.

[0020] In one embodiment, the detector arrangement structure is disposed in the phantom, preferably configured as an encapsulated insert.

[0021] In one embodiment, the phantom is shaped irregularly, particularly mimicking or closely approximating the shape of a human head.

[0022] In one alternative embodiment, the phantom is shaped as a regular shape, particularly as a small rhomboid half-cube.

[0023] In one implementation, the phantom is sized to fit the size of a human head.

[0024] In one embodiment, the phantom space is fixedly disposed within the detector device.

[0025] In one embodiment, the phantom is configured to be non-deformable.

[0026] In one embodiment, the mold body has a density similar to water and / or a decay coefficient similar to water.

[0027] The present invention also includes a series of constructions for detector devices in radiation medicine, the series having at least two variants that correspondingly form a detector device for radiation medicine according to the invention, wherein the at least two variants have different external profiles and the detector arrangement is uniformly configured as an insert. In this way, detector arrangement structures for different applications can be easily and cost-effectively configured.

[0028] The present invention also includes the application of a radiation therapy detector device according to the invention for measuring radiation devices used in radiation therapy, particularly for dosimetric characterization and / or stability testing, and / or for examining patient plans for radiation therapy. Attached Figure Description

[0029] The invention will now be described in more detail with reference to the accompanying drawings and preferred embodiments.

[0030] in:

[0031] Figure 1 shows a front view of a detector arrangement structure of a detector device according to the present invention, the detector arrangement structure having cross-arranged carriers;

[0032] Figure 2 shows a carrier with long slots, as it is horizontally positioned in Figure 1;

[0033] Figure 3 shows a carrier with short slots, as it is vertically arranged in Figure 1;

[0034] Figure 4 shows a carrier with the detector shown;

[0035] Figure 5 shows a cross-section of the carrier with the detector;

[0036] Figure 6 shows a detector device according to the invention with a regularly shaped mold, the mold having an insert with a detector arrangement structure; and

[0037] Figure 7 shows a detector device according to the invention with an irregularly shaped mold having an insert with a detector arrangement structure. Detailed Implementation

[0038] Figure 1 schematically shows a front view of the detector arrangement structure 1 of the detector device according to the invention along the longitudinal direction. The detector arrangement structure 1 in this example has a total of seven carriers 2, including four vertical carriers 3 and three horizontal carriers 4, the four vertical carriers and three horizontal carriers forming a two-dimensional grid. The example shown here is only for illustration purposes. In practice, the detector arrangement structure 1 can also have more carriers along both orientations, such as six or more horizontal carriers or five or more vertical carriers. The number of carriers here can depend on the size and the required accuracy. Similarly, the position of the detector device is not fixed, so the terms "vertical" and "horizontal" should only be used to illustrate the example shown and should not be construed as limitations on the actual position of the carriers. Therefore, the carriers shown and labeled vertically here can actually be oriented horizontally or diagonally in the detector device. However, the cross-arrangement of the carriers is important here.

[0039] In the example, the vertical carrier 3 and the horizontal carrier 4 intersect each other at a 90° angle. However, other angles can also be chosen.

[0040] Figure 2 shows a top view of one of the horizontal carriers 4 in Figure 1.

[0041] The carrier 4 has an electronics region 5 at one end, in which, for example, control electronics and / or evaluation electronics can be provided.

[0042] In this example, carrier 4 has four insertion slots 6 arranged longitudinally and extending substantially from the electronics region 5 to opposite ends of carrier 4. The insertion slots are open at these opposite ends, allowing insertion of a vertical carrier 3. This achieves a simple, cross-arrangement of carriers 2.

[0043] The detector is mounted on the carrier outside the electronics region 5, but is not shown in this diagram.

[0044] Figure 3 shows a top view of one of the vertical carriers 3 in Figure 1.

[0045] The carrier 3 has an electronic component region 5, the longitudinal extension of which substantially corresponds to the horizontal carrier 4 in FIG. 2. The vertical carrier 3 also has an insertion slot 6; however, the insertion slot is open at the end of the carrier 3 containing the electronic component region 5 and extends substantially along the longitudinal direction over the electronic component region 5. This forms an insertion slot 6 complementary to the horizontal carrier 4. When the vertical carrier 3 is inserted into the horizontal carrier 4, the insertion slot 6 of the vertical carrier 3 overlaps with the electronic component region 5 of the horizontal carrier 4. The electronic component regions 5 of the carriers 3 and 4 are thus directly adjacent. Therefore, the contact and communication between the respective electronic component regions 5 can be achieved in a simple manner. For example, a plug-in connector can be used for this.

[0046] Another advantage of this arrangement is that all electronic devices in the electronic device region 5 are located at one end of the detector device 1. This arrangement easily protects the electronic devices from radiation, for example, by placing the electronic device region 5 outside the radiation zone.

[0047] Unlike the embodiments shown here, the insertion slots of each carrier may also be symmetrical (i.e., approximately the same length on the horizontal carrier 4 and the vertical carrier 3) or have other different length ratios.

[0048] Figure 4 schematically shows a carrier 2 with a detector field 7. The insertion slot is not shown in this figure. The carrier 2 shown can be a vertical carrier 3 or a horizontal carrier 4, wherein the insertion slot 6 corresponding to that in Figure 2 or Figure 3, or other insertion slots 6, are provided accordingly.

[0049] The detector field 7 has a plurality of detectors 8 arranged in a regular grid oriented along the two main axes 9 of the carrier. In the example, the detector field 7 has 17 detectors 8 in the transverse direction and 31 detectors 8 in the longitudinal direction, for a total of 527. The detector field 7 thus has a very large number of detectors 8. This is made possible in particular by the fact that the control electronics required for this purpose are directly disposed on the carrier 2 in the electronics area. It is particularly advantageous that the detectors 8 are arranged with a grid spacing of 5 mm. This enables high-resolution measurements and thus allows for sufficiently accurate examination of lesions as small as approximately 10 mm in size.

[0050] Figure 5 shows a cross-sectional view of the carrier 2 of Figure 4. In this example, the carrier 2 is configured as a multilayer printed circuit board, so that electronic components (e.g., electronic components in the electronics region 5) and the detector 8 can be directly mounted on the carrier 2.

[0051] In this example, detector 8 is a diode, which is directly mounted on carrier 2 without its own housing. Electrical contact of the diode is achieved via lead connections and, possibly, via conductive paste on the underside of the diode. To protect the sensitive connection wires, detector 8 is encapsulated and cast with casting material 10. Filler material 11 is provided between detectors 8, thus avoiding the need to cover the entire carrier 2 with casting material 10. The casting material 10 and filler material 11 form a flat surface.

[0052] The width of the insertion slot 6 therefore corresponds substantially to the total thickness of the carrier 2, including the filling material 11.

[0053] Figure 6 shows a first embodiment of the detector device 14 according to the invention, having a regularly shaped phantom 12. The phantom 12 has an insert 13, into which a detector arrangement structure 1 with intersecting carriers 2, as described above, can be inserted or has been inserted.

[0054] Figure 7 illustrates a second embodiment of the detector device 14 according to the invention, having a phantom 12 that mimics a human head. The phantom 12 also has an insert 13 for the detector arrangement structure 1.

[0055] Particularly advantageous is that the phantoms 12 of the first and second embodiments have consistent inserts 13, thereby forming a series of constructions for radiation medicine detector devices 14, which have at least two variants that correspondingly form a radiation medicine detector device 14 according to the invention.

[0056] List of reference numerals

[0057] 1. Detector Arrangement Structure

[0058] 2 carriers

[0059] 3. Vertical carrier

[0060] 4-level carrier

[0061] 5 Electronic Components Area

[0062] 6 Insert groove

[0063] 7 detector field

[0064] 8 detectors

[0065] 9 main axes

[0066] 10 Casting Materials

[0067] 11 Filling materials

[0068] 12 phantoms

[0069] 13 inserts

[0070] 14 detector devices

Claims

1. A detector arrangement (14) for radiation medicine, the detector arrangement having a detector arrangement (1), characterized in that The detector arrangement structure (1) has more than two carriers (2) arranged in a cross manner, each carrier (2) is provided with a detector field (7), and the cross carriers (2) penetrate each other.

2. The detector device (14) for radiation therapy according to claim 1, characterized in that, The detector (8) of the detector field (7) is configured to determine the radiation dose of ionizing radiation.

3. The detector device (14) for radiation therapy according to claim 2, characterized in that, The detector (8) is configured to determine the radiation dose of X-ray radiation.

4. The detector device (14) for radiation therapy according to any one of claims 1 to 3, characterized in that, Each carrier (2) has a printed circuit board accordingly.

5. The radiation therapy probe device (14) according to any one of claims 1 to 3, characterized in that Intersecting carriers (2) define a consistent detection area.

6. The detector device (14) for radiation therapy according to any one of claims 1 to 3, characterized in that, The cross-carriers (2) are configured as mutually adhesive and / or plug-in connected and / or one-piece.

7. The radiation therapy probe device (14) according to any one of claims 1 to 3, characterized in that The carrier (2) has an insertion slot (6) in which another carrier (2) of the more than two carriers (2) is inserted; and / or a mechanical and / or electrical insertion space is formed on one carrier (2) into which another carrier (2) is inserted.

8. The radiation therapy probe device (14) according to claim 7, characterized in that The insertion slot (6) is an insertion slot that is open on one side.

9. The radiation therapy probe device (14) according to claim 7, characterized in that The additional carrier (2) is inserted longitudinally into the insertion slot in relation to the carrier (2) for receiving.

10. The detector device (14) for radiation therapy according to claim 7, characterized in that, The other carrier (2) is inserted into the insertion slot using one insertion slot or using the insertion slot (6) of the other carrier.

11. The detector device (14) for radiation therapy according to claim 7, characterized in that, The additional carrier (2) is inserted laterally into the insertion space along with the carrier (2) for receiving.

12. The detector device (14) for radiation therapy according to any one of claims 1 to 3, characterized in that, The more than two carriers (2) form a two-dimensional grid.

13. The detector device (14) for radiation therapy according to claim 12, characterized in that, The grid comprises two intersecting sets of carriers (2).

14. The radiation therapy probe device (14) according to claim 12, characterized in that The grid comprises two sets of intersecting carriers (2) oriented parallel to each other.

15. The detector device (14) for radiation therapy according to any one of claims 1 to 3, characterized in that, The more than two carriers (2) intersect at the intersection line.

16. The radiation therapy probe device (14) according to claim 15, characterized in that The intersecting lines are oriented along the insertion direction.

17. The radiation therapy probe device (14) according to claim 16, characterized in that Each carrier (2) has an electrical contact on its end side oriented toward the insertion direction.

18. The radiation therapy probe device (14) according to any one of claims 1 to 3, characterized in that Each carrier (2) is correspondingly planar.

19. The detector device (14) for radiation therapy according to any one of claims 1 to 3, characterized in that, The intermediate space between each carrier (2) is filled with or can be filled with material.

20. The detector device (14) for radiation therapy according to claim 19, characterized in that, The materials can be replaced between the carriers (2).

21. The detector device (14) for radiation therapy according to any one of claims 1 to 3, characterized in that, The detector arrangement structure (1) is set in the phantom (12).

22. The radiation therapy probe device (14) according to claim 21, characterized in that The detector arrangement structure is set as an insert (13).

23. The radiation therapy probe device (14) according to claim 21, characterized in that The detector arrangement is configured as an encapsulated insert (13).

24. The detector device (14) for radiation therapy according to claim 21, characterized in that, The model (12) is shaped into an irregular shape.

25. The detector device (14) for radiation therapy according to claim 24, characterized in that, The model imitates or closely resembles the shape of the human head.

26. The radiation therapy probe device (14) according to claim 21, characterized in that The model (12) is formed into a regular shape.

27. The detector device (14) for radiation therapy according to claim 26, characterized in that, The phantom (12) is constructed as a small rhomboid half cube.

28. The radiation therapy probe device (14) according to claim 21, characterized in that The size of the phantom (12) is adapted to the size of a human head.

29. The radiation therapy probe device (14) according to claim 21, characterized in that The phantom (12) is spatially fixed in the detector device.

30. The detector device (14) for radiation therapy according to claim 21, characterized in that, The phantom (12) is constructed to be non-deformable.

31. The radiation therapy probe device (14) according to claim 21, characterized in that The phantom (12) has the density of water and / or the attenuation coefficient of water.

32. A series of constructions for a radiation therapy detector device (14), the series of constructions having at least two variants, the variants correspondingly forming a radiation therapy detector device (14) according to any one of claims 1 to 31, characterized in that, The at least two variants have different external contours, and each detector arrangement structure (1) is uniformly configured as an insert (13).

33. Application of the detector device (14) for radiation therapy according to any one of claims 1 to 31, wherein the detector device is used to measure radiation equipment for radiation therapy and / or the detector device is used to check patient plans for radiation therapy.

34. The use according to claim 33, wherein The radiation device is used for dosimetric characterization and / or stability testing.

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