WO2008043196A1

WO2008043196A1 - An intensity modulated grating system of compensating disintegration type honeycomb array and using method thereof

Info

Publication number: WO2008043196A1
Application number: PCT/CN2006/002497
Authority: WO
Inventors: Qiaosheng Wang
Original assignee: Qiaosheng Wang
Priority date: 2006-09-22
Filing date: 2006-09-22
Publication date: 2008-04-17

Abstract

An intensity modulated grating system of compensating disintegration type honeycomb array for radiotherapy includes a guiding track mechanism (100), a grating mechanism (200) fixed on the guiding track mechanism (100) and a driving mechanism (300) for driving the guiding track mechanism (100). The guiding track mechanism (100) has a guiding track (110). The grating mechanism includes a needle bin (210) and many tungsten needles (221, 222, 223, 224) of different sizes. The needle bin is set on the guiding track (110). There are provided with several needle holes in the needle bin (210). The tungsten needles (221, 222, 223, 224) of different sizes can separately be installed into the needle holes according to the shape of an object to be radiated. The grating system for radiotherapy with the honeycomb needle bin and many tungsten needles of different sizes can reach shape fitting and intensity modulating by selectively installing tungsten needles of different specification into the corresponding needle holes.

Description

Direct-compensated decay honeycomb array intensity-modulating grating system and using method thereof

Technical field

The present invention relates to a medical radiation therapy device, and more particularly to a direct-compensated honeycomb array intensity-modulating grating system for a radiation therapy device for tumor radiation therapy and a method for using the same.

BACKGROUND OF THE INVENTION Conventional radiation therapy to achieve stereoscopic conformity and intensity modulation conformation is: firstly, according to the shape of a tumor at a certain irradiation position, that is, the shape of the target region, an electric multi-leaf grating mechanism is formed to conform to the shape of the tumor. Shooting the field, and then using different shapes of the shrinkage field to complete the intensity of the tumor in the direction of the shape of the shape, the overlap of multiple exposures to form a step distribution of the dose intensity, and finally achieve the stereoscopic treatment effect consistent with the tumor morphology and dose distribution . However, the electric multi-blade grating mechanism is composed of a plurality of independent tungsten alloy sheets and micro-motors. First, it is limited by structure and size, and the field of view cannot be exactly the same as the shape of the tumor. Very rough; in addition, there is a need for flexible movement between the sheets. Therefore, it is not possible to rely too tightly between the blades, which inevitably leads to gap leakage between the blades, which makes the performance and quality of the modulated field. discount. SUMMARY OF THE INVENTION An object of the present invention is to provide a direct-compensated honeycomb array intensity modulated grating system with high conformal field accuracy, good performance and good quality, and a method for using the same.

In order to achieve the above object, the present invention provides a direct-compensated decay honeycomb array intensity-modulating grating system comprising a rail mechanism, a grating mechanism fixed to the rail mechanism, and a driving mechanism for driving the rail mechanism, and the rail mechanism has a guide rail. The grating mechanism includes a needle magazine and a plurality of tungsten needles. The needle magazine is mounted on the guide rail, and the needle magazine is formed with a plurality of pinhole chambers, and the plurality of tungsten needles are detachably mounted in the needle hole chamber according to the shape of the object to be irradiated.

The method for using the above-mentioned direct-compensation type honeycomb array intensity-modulating grating system comprises the following steps:

(1) obtaining the shape of the object to be irradiated;

(2) the driving mechanism drives the rail mechanism so that the rail of the rail mechanism transports the needle magazine to the needle loading device, and the corresponding tungsten needle is installed in the needle hole corresponding to the needle box according to the shape of the object to be irradiated;

(3) The drive mechanism drives the rail mechanism so that the guide rail mechanism guides the needle magazine to the designated position for radiotherapy.

In order to achieve the above object, the present invention provides another direct-compensation type honeycomb array intensity-modulating grating system, comprising a rail mechanism, a grating mechanism fixed on the rail mechanism, and a driving mechanism for driving the rail mechanism. The rail mechanism has a plurality of rails that are disposed in an overlapping manner in the radial direction. The grating mechanism includes a plurality of needle magazines and a plurality of tungsten needles. Each of the needle magazines is respectively disposed on the corresponding rails, and each of the needle magazines is formed with a plurality of pinhole chambers, and the plurality of tungsten needles are detachably installed in the needle hole chambers of the corresponding needle cartridges according to the shape of the objects to be irradiated.

As described above, the grating mechanism of the direct-compensated honeycomb array intensity-modulating grating system of the present invention adopts a honeycomb needle magazine and a structure of a plurality of tungsten needles, and selectively installs tungsten of different specifications into the corresponding pinhole chamber. The needle, so as to achieve conformal and intensity adjustment, therefore, the direct complement decay honeycomb array intensity modulation grating system has high conformity and high performance and good quality. DRAWINGS

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

1 is a top plan view of a first embodiment of a direct-compensated honeycomb array intensity modulated grating system of the present invention. Fig. 2 is a front elevational view showing the rail mechanism and the grating mechanism of the direct-compensated honeycomb array' intensity-modulating grating system shown in Fig. 1.

Figure 3 is a perspective view of the needle magazine of the grating mechanism of Figure 2.

Figure 4 is a perspective view of a plurality of gauge pins of the grating mechanism of Figure 2.

Figure 5 is a cross-sectional view of the needle magazine shown in Figure 3.

Figure 6 is a plan view of the needle magazine shown in Figure 3.

Figure 7 is a cross-sectional view of the needle magazine of Figure 3 after the tungsten needle is installed.

Figure 8 is a plan view of the needle magazine shown in Figure 3 after the needle is mounted.

Figure 9 is a front elevational view of the drive mechanism of the direct-compensated honeycomb array intensity modulated grating system of Figure 1. Fig. 10 is a front elevational view showing the rail mechanism and the grating mechanism of the second embodiment of the direct-compensated honeycomb array intensity-modulating grating system of the present invention.

11 is a top plan view of a second embodiment of a bee direct-compensated honeycomb array intensity modulated grating system of the present invention. Figure 12 is a partial cross-sectional view of the direct-compensated honeycomb array intensity modulated grating system of Figure 11. Figure 13 is a perspective view of the rail mechanism shown in Figure 10.

Figure 14 is a cross-sectional view of the rail mechanism shown in Figure 13.

Fig. 15 is a plan view showing the needle holder of the grating mechanism shown in Fig. 10 after the tungsten needle is attached.

Figure 16 is a cross-sectional view of the needle magazine of Figure 10 after the tungsten needle is attached.

Figure 17 is a front elevational view showing the rail mechanism and the grating mechanism of the third embodiment of the direct-compensated honeycomb array intensity-modulated grating system of the present invention. DETAILED DESCRIPTION OF THE INVENTION Figure 1 discloses a first embodiment of a direct complement decay honeycomb array intensity modulated grating system 10 of the present invention. In the present embodiment, the direct-compensation decay honeycomb array intensity-modulating grating system 10 includes a rail mechanism 100, which is fixed. Referring to FIG. ² , the rail mechanism 100 has a circular guide rail 110. A needle chamber 111 is opened on the guide rail 110. The guide rail 110 is rotated about a shaft by the drive mechanism 300 to transport the grating mechanism 200 to or away from the position where the tumor is irradiated. Further, the guide rail 110 may also be in the shape of a straight rod.

Referring to Figures 3 and 4 together, the grating mechanism 200 includes a needle cartridge 210, a plurality of tungsten needles 221, 222, 223, 224, a needle loading device 230, and a needle withdrawal device 240. The needle magazine 210 is mounted in the needle chamber 111 of the guide rail 110, and the needle magazine 210 moves with the guide rail 110.

Referring to FIG. 3, FIG. 5 and FIG. 6, the needle cartridge 210 is in the shape of a hexahedron, and the upper and lower surfaces thereof are spherical. The needle cartridge 210 is divided by the metal piece 211 to form a separate pinhole chamber 212 arranged in a matrix of Ν χ N matrix. To form a honeycomb structure. The pinhole chamber 212 has a tapered shape, and the pinhole chamber 212 has a regular hexagonal cross section. Each of the pinhole chambers 212 is inclined toward a center on which the radiation source is disposed.

Referring again to Figures 2 and 4, different sizes of tungsten needles 221, 222, 223, and 224 have different lengths. Each tungsten needle has a pyramid shape, and each tungsten needle has a regular hexagonal cross section. Different sizes of tungsten needles 221, 222, 223, and 224 are detachably mounted in the corresponding pinhole chambers 212 as the case may be. The needle loading device 230 and the needle withdrawal device 240 are disposed on the outer side and the inner side of the guide rail 210, respectively.

In use, for the shape and thickness of the tumor, that is, the three-dimensional shape of the irradiated object, the needle loading device 230 inserts tungsten needles 221, 222, 223, 224 of different specifications into the corresponding pinhole chamber 212 to form a shape with the tumor. A uniform thickness of the bismuth alloy layer is achieved for the purpose of illumination conformation and dose strength adjustment, as shown in Figures 7 and 8.

Referring to Figures 1 and 9, the drive mechanism 300 includes a motor 310, a gear assist 320, a worm gear housing 330, a base 340, a worm gear 350, and a gear 360 connector 370.

The motor 310 is mounted on the base 340, and the front end of the motor 310 is connected to the connector 370. The connector 370 is in turn coupled to a worm gear 350 that is disposed on a worm gear housing 330. The worm gear housing 330 is disposed on the housing 340, the worm gear 350 is engaged with the gear 360, and the gear 360 passes through the gear assisting device 320 and the rail of the rail mechanism 100. 110 connections.

In use, the rotary connector 310 and reverse directions to drive a motor 370 and the worm wheel ³⁵⁰ is rotated, the worm wheel 350 can be rotated forward and reverse direction, because the worm 350 meshed with the gear 360, worm gear 350 drives the gear 360 so that movement is occurring The movement of the gear 360 drives the guide rail through the gear assist device O 110 can be used for repeated swings. When the guide rail 110 swings to the upper left end of the base 340, a raster switching operation is performed. When the guide rail 110 is swung, the needle cartridge 210 carried by the guide rail 110 is swung to a position below the base 340, and the guide rail 110 is swung to the right side of the base 340. At the upper end, another raster switching operation is performed, and so on.

The method of using the first embodiment described above includes the following steps:

(1) acquiring a three-dimensional shape of the object to be irradiated;

(2) The drive mechanism 3QQ drives the guide rail 110 to transport the needle cartridge 210 to the needle loading device or the needle withdrawal device, and controls the needle loading device 230 or the needle withdrawal device 240 to correspond to the needle cartridge 210 according to the three-dimensional shape of the object to be irradiated. A tungsten needle of a corresponding specification is installed in the pinhole chamber 212 to form a tungsten alloy three-dimensional layer conforming to the three-dimensional shape of the object to be irradiated (as shown in FIGS. 7 and 8);

(3) Drive mechanism 300 Drive rail 11 G Transport the needle cartridge 210 with the tungsten needle to the designated position for radiotherapy.

As described above, the grating mechanism 200 of the direct-compensated honeycomb array intensity-modulated grating system 10 of the present invention adopts a T-honey type needle magazine and cooperates with a variety of tungsten needles to selectively attach to the corresponding pinhole chamber 212. Set tungsten needles of different specifications to achieve the purpose of shape and strength adjustment. In general, the finer the pinhole chamber 212, the higher the accuracy of the conformal adjustment, and the more the tungsten needle is provided, the higher the accuracy of the dose intensity adjustment. The driving mechanism 300 of the direct-compensation honeycomb array intensity-modulating grating system 10 of the present invention transmits the driving force in the forward and reverse directions to the guide rail 110 when the motor 310 rotates in the forward and reverse directions by the cooperation between the worm wheel 350 and the gear 360, so that the guide rail The shifting and transporting of the needle magazine 210 is performed on the base 340 of the 110, so that the present invention has a higher needle bin 210 switching and transport efficiency.

The grating mechanism of the direct-compensated decay honeycomb array intensity-modulating grating system can be composed of a plurality of needle magazines used in combination, that is, at least two layers of needle magazines of different specifications are superimposed and used, and the needle magazines of the respective layers are located at corresponding positions. The pinhole chambers are connected to each other, and each layer of the needle magazine corresponds to a tungsten needle of a specification. In general, the more layers the needle cartridge is superimposed, the higher the accuracy of the intensity of the formed grating.

10 to 16 disclose a second embodiment of the present invention. In the present embodiment, the direct-compensated decay honeycomb array intensity-modulating grating system 10 has four layers of needle-barrels of different specifications and is matched with four different specifications of tungsten needle structures, and this structure forms sixteen kinds in actual radiation therapy. Beams of different intensities. The specific structure of the direct-compensated decay honeycomb array intensity-modulating grating system 10 is as follows:

Referring to FIG. 10, the rail mechanism 100 of the direct-compensation honeycomb array intensity-modulating grating system 10 has four layers of guide rails 120, 130, 140, and 150 of different specifications. The four-layer guide rails 120, 1 30, 140, and 150 are all annular and are disposed to overlap each other in the radial direction from the outside to the inside. Four-layer rails 120, 1 30, 140, 150 The thicknesses in the radial direction are different from each other, and the needle chambers 121, 131, 141, 151 are sequentially opened thereon. Referring to Figures 13 and 14, the rail mechanism 100 also has an arcuate slider 160. The slider 160 is disposed on the outer side of the guide rail 120, and the slider 160 defines an opening 161 corresponding to the needle chamber 121.

Referring to FIG. 10, FIG. 14, and FIG. 16, the grating mechanism 200 includes four types of tungsten needles 221, 222, 223, 224, a needle loading device 230, a needle removing device 240, and four types of needle magazines 250, 260, 270. , 280. The needle cartridges 250, 260, 270, 280 have a similar structure to the needle cartridge 210 of the first embodiment, and the needle cartridges 250, 260, 270, 280 are respectively mounted in the needle chambers 121, 131, 141, 151, and the needle cartridges A plurality of pinhole chambers 252, 262, 272, 282 are formed on each of 250, 260, 270, and 280, respectively. The needles 221, 222, 223 and 224 are detachably mounted in their matching pinhole chambers 252, 262, 272, 282. The needle loading device 230 and the needle withdrawal device 240 are disposed on the outer side of the guide rail 250 and the inner side of the guide rail 280, respectively.

Referring to FIG. 11 and FIG. 12, the driving mechanism 400 includes motors 411, 412, 413, 414, 415, a board 421, a cover 422, and a slide device 431, 432, 433, 434, 435, 436, 437, 438. Rack and gearing 441, 442, 443, 444, 445.

The plate 421 has a circular plate shape, and the plate 421 is provided with slide devices 435, 436, 437, and 438. The cover plate 422 is disposed at a predetermined distance above the plate 421, and the slide plate device is disposed under the cover plate 422. The slide devices 431, 432, 433, and 434 corresponding to 435, 436, 437, and 438. Rails 431, 432, 433, 434 are respectively provided with guide rails between respective slide guides 435, 436, 437, 438

120, 130, 140, 150. The slider 160 is mounted between the board 411 and the cover 412. Motors 411, 412, 413, 414, 415 are coupled to rack and pinion drives 441, 442, 443, 444, 445, respectively. Rack and pinion drives 441, 442, 443, 444, 445 are in turn coupled to rails 120, 130, 140, 150 and slider 160, respectively. The rack and pinion drives 441, 442, 443, 444, 445 described above each have a rack and a gear. Each of the racks is disposed at a lower portion of the guide rails 120, 130, 140, 150, and the gears are respectively mounted on the motors 411, 412, 413, 414, and 415, and the gears mesh with the corresponding racks. A motor storage space is opened on the board 411, and the motors 411, 412, 413, 414, and 415 are disposed in the motor storage space.

In use, the rails ^120, 130, 140, the needle chamber ¹⁵ on the guide rails 100 of the apparatus 0

121, 131, 141, 151 and the opening 161 in the slider 160 can be equipped with a needle magazine, and driven by the motors 411, 412, 413, 414, 415, respectively, without any interference, so that the corresponding needle magazine ²⁵ 0, 260, 270, 280 are shipped or adjusted to the designated location for operation or use. Since the guide rails 120, 130, 140, 150 of the rail mechanism 100 are overlapped in the radial direction and are driven independently of each other under the driving of the respective motors 411, 412, 413, 414, they can be mounted on the guide rails 120, 130, 140, 150 The upper needle bins 250, 260, 270, 280 are superimposed for use, as shown in Figs. 10 and 16. The slider 160 of the present invention serves as an auxiliary mechanism for temporarily storing the needle magazine or assisting in the operation of the crochet or the tungsten needle.

The method of using the second embodiment above includes the following steps:

(1) acquiring a three-dimensional shape of the object to be irradiated;

(2) The driving mechanism 400 independently drives the respective guide rails 120, 130, 140, 150 to respectively transport the corresponding needle magazines 250, 260, 270, 280 carried by the guide rails to the needle loading device or the needle withdrawal device, according to the irradiated object a three-dimensional shape, the control needle loading device 230 or the needle withdrawal device 240 performs a tungsten needle or a tungsten-retracting needle operation in the pinhole chambers 252, 262, 272, and 282 of each of the needle magazines 250, 260, 270, and 280;

(3) The driving mechanism 400 independently drives the respective guide rails 120, 13G, '14G, 150 to transport the needle magazines 250, 260, 270, 280 each having the tungsten needles to a designated position, and each of the needle magazines 250, 260, 270 280 is overlapped, and the tungsten needles in the respective needle magazines 250, 260, 270, and 280 are formed to form a tungsten alloy three-dimensional layer conforming to the three-dimensional shape of the object to be irradiated, as shown in FIGS. 15 and 16.

The direct decay decay honeycomb array intensity modulation grating system 10 provided by the second embodiment of the present invention adopts a structure in which a plurality of needle magazines are superimposed and matched with the matching needles, so that the invention is easy to operate and more efficient in practical use. . Referring to FIG. 15 and Table 1, the four-layer needle magazines 250, 260, 270, and 280 cooperate with four types of tungsten needles 221, 222, 223, and 224 to provide sixteen different intensity illumination lines. The purpose of intensity adjustment.

A ray intensity of a needle magazine 280 of a needle magazine 270 of a needle magazine 260 of the needle cartridge 250 corresponds to a needle hole corresponding to a pinhole corresponding pinhole corresponding pinhole level is not loaded / 0 is not loaded / 0 is not loaded / 0 No needle / 0 0000 No needle / 0 No needle / 0 No needle / 0 Needle eight 0001 No needle / 0 No needle / 0 Needle / 1 No needle / 0 0010 No needle / 0 No needle / 0 Needle / 1 Needle / 1 0011 No needle / 0 Needle 8 No needle / 0 No needle / 0 0100 No needle / 0 Needle / 1 No needle / 0 Needle / 1 0101 No needle / 0 Needle / 1 Needle / 1 No needle / 0 0110 No needle / 0 Needle / 1 Needle / 1 Needle / 1 0111 Needle is not loaded / 0 No needle /0 No needle / 0 1000 Needle 8 is not loaded / 0 No needle / 0 Needle / 1 1001 Needle / 1 No needle / 0 Needle 8 is not loaded / 0 1010 Needle is not loaded /0 Needle loading / 1 1011 Needle / 1 Needle 8 not loaded / 0 No needle / 0 1100 Needle / 1 Needle / 1 No needle / 0 Needle / 1 1101 Needle / 1 Pack Needle / 1 Needle / 1 No Needle / 0 1110 Needle Mounting / 1 Needle Mounting / 1 1111 Figure 17 discloses a third embodiment of the direct-compensated honeycomb array intensity modulated grating system 10 of the present invention. This embodiment is similar to the second embodiment except that the grating mechanism 200 has a four-set needle device 230' and four sets of needle-removing devices 240. The four needle-setting devices ² 30 are disposed at equal intervals on the outer side of the guide rail. The four sets of needle withdrawal devices ² 40 are disposed at equal intervals on the inner side of the guide rail 150, and the four sets of needle withdrawal devices 240 are located at the same angle as the four needle set devices 230.

In use, the four-layer annular guide rails 120, 130, 140, and 150 are mutually non-interferingly rotated to drive the needle cartridges 250, 260, 270, 280 mounted on the guide rails 120, 130, 140, 150, respectively, to corresponding needle means mounted angle of 230, and back needle apparatus ^240, and installed by a respective needle means 230 'are each needle cartridge 250, 260, 270, 280 or tungsten needle is mounted by a respective back needle apparatus 240, The tungsten needles are withdrawn from the respective needle magazines 250, 260, 270, and 280, respectively.

In this embodiment, the four needle bins 250, 260, 270 of the direct-compensation honeycomb array intensity-modulating grating system 10 are directly The 280 cooperates with the four set needle device 230, and the four sets of the needle removing device 240, so that the distribution of the needles in each needle magazine can be conveniently adjusted, thereby achieving the purpose of the it shape adjustment.

The embodiments described above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, equivalent changes in the shapes, structures, and principles of the present invention should be Within the scope of protection of the invention.

Claims

Rights request

A direct-compensated decay honeycomb array intensity-modulating grating system comprising a rail mechanism (100), a grating mechanism (200) fixed to the rail mechanism (100), and a driving mechanism (300) for driving the rail mechanism (100), The utility model is characterized in that: the rail mechanism (100;) has a guide rail (110), and the grating mechanism (200) comprises a needle magazine (210 X various tungsten needles (221, 222, 223, 224), and the needle magazine (210) is mounted on the guide rail (110), a plurality of pinhole chambers (212) are formed on the needle magazine (210), and the plurality of tungsten needles (221, 222, 223, 224) are detachably mounted to the corresponding pinholes according to the shape of the object to be irradiated. Inside the room (212).

2. The direct complement decay honeycomb array intensity modulated grating system according to claim 1, wherein: said pinhole chamber (212) is separated by a metal sheet (211).

3. The direct complement decay honeycomb array intensity modulated grating system according to claim 1, wherein: said pinhole chamber (212) has a hexagonal cross section.

4. The direct-compensation honeycomb array intensity-modulating grating system according to claim 1, wherein: the needle magazine (210) has a hexahedron shape, and upper and lower surfaces of the needle magazine (210) are spherical surfaces, and the needle chamber is The pinhole chambers (212) on (210) are arranged in an Nx N matrix, and each of the pinhole chambers (212) is tapered and inclined to the same center.

5. The direct-compensated honeycomb array intensity modulated grating system according to claim 4, wherein: the tungsten needles (221, 222, 223, 224) are pyramid-shaped, and each tungsten needle (221, 222, 223, 224) have different lengths.

6. The direct-compensation type honeycomb array intensity-modulating grating system according to claim 1, wherein: the guide rail (110) has a circular shape, and the guide rail (110) is provided with a needle chamber (111). The needle magazine (210) is mounted in the needle chamber (111).

7. The direct-compensated honeycomb array intensity modulated grating system according to claim 6, wherein: said grating mechanism (200) further comprises pushing tungsten needles (221, 222, 223, 224) into the pinhole chamber. (212) a needle loading device (230) and a needle removing device (240) for withdrawing the pigeon needle (221, 222, 223, 224) from the needle hole chamber (212), a needle loading device (230) and a needle removing device (240) ) are respectively disposed on both sides of the guide rail (110). '

8. The direct-compensated honeycomb array intensity modulated grating system according to claim 1, wherein: the driving mechanism (300) comprises: a motor (310), a worm gear bearing (330), and a base (340). , the worm wheel (350) and the gear (360), the motor (310) is mounted on the base (340) and connected to the worm wheel (350), and the worm wheel (350) is disposed on the worm wheel bearing seat (330) and the gear (360) ) meshing gear

1 (360) Connect to the rail (110).

9. The direct-compensation honeycomb array intensity modulated grating system according to claim 8, wherein: the driving mechanism (300) further comprises a connector (370), the connector (370) and the worm wheel ( 350) Connected to the motor (310).

10. The method of using the direct-compensation type honeycomb array intensity-modulating grating system according to claim 1, wherein the method comprises the following steps:

(1) acquiring the shape of the object to be irradiated; transporting the needle magazine (210_) to the device for loading the needle: and according to the shape of the object to be irradiated, the corresponding needle hole chamber (212) of the needle holder (210) is provided with a corresponding tungsten needle ; Transport the needle compartment (210) to the designated location for radiotherapy use.

11. A direct-compensated decay honeycomb array intensity-modulated grating system comprising: a rail mechanism (100), a grating mechanism (200) fixed to the rail mechanism (100), and a driving mechanism (400) for driving the rail mechanism (100), The utility model is characterized in that: the rail mechanism (100) has a plurality of guide rails (.120, 130, 140, 150) arranged in an overlapping direction in the radial direction, and the grating mechanism (200) comprises a plurality of needle magazines (250, 260, 270, 280), Tungsten needles (221, 222, 223, 224), each of the needle magazines (250, 260, 270, 280) are respectively mounted on the corresponding rails (120, 130, 140, 150), each needle magazine (250, 260) , 270, 280) respectively form a plurality of pinhole chambers (252, 262, 272, 282), and a plurality of tungsten needles (221, 222, 223, 224) are detachably mounted to the corresponding needle bins according to the shape of the object to be irradiated Pinhole chamber (250, 260, 270, 280) -

(252, 262, 272, 282).

12. The direct-compensation type honeycomb array intensity-modulating grating system according to claim 11, wherein: each of the guide rails (120, 130, 140, 150) has an annular shape, and each of the guide rails (120, 130) The thicknesses of 140, 150) are different from each other.

13. The direct-compensated honeycomb array intensity modulated grating system according to claim 12, wherein: the grating mechanism (200) further comprises a plurality of pins, each of which is coupled to the guide rails (120, 130, 140, 150). The device (230, ) and the needle removing device (240, ), the needle loading device (230, ) are equally spaced on one side of the guide rails (120, 130, 140, 150), the needle removing device (240, ), etc. The spacers are disposed on the other side of the rails (120, 130, 140, 150) and at the same angle as the needle loading device (230, ).

14. The direct complement decay honeycomb array intensity modulated grating system according to claim 11, wherein:

/0 The thicknesses of the respective needle magazines (250, 260, 270, 280) are different from each other.

The direct-compensation honeycomb array intensity-modulating grating system according to claim 14, wherein: each of the needle magazines (250, 260, 270, 280) has a hexahedron shape, and each needle magazine (250, The upper and lower surfaces of 260, 270, 280) are spherical, and the pinhole chambers (252, 262, 272, 282) of each of the needle magazines (250, 260, 270, 280) are arranged in an NxN matrix manner, and each A pinhole chamber (252, 262, 272, 282) is tapered and is inclined toward the same center.

16. The direct-compensated honeycomb array intensity modulated grating system according to claim 15, wherein: each of the tungsten needles (221, 222, 223, 224) has a cone shape and various tungsten needles ( 221, 222, 223, 224) have different lengths.

17. The direct-compensation honeycomb array intensity modulated grating system according to claim 11, wherein: the driving mechanism (400) comprises a board (421), and a rail (120, 130, 140, 150), etc. a number of motors (412, 413, 414, 415), a number of rack and pinion mechanisms (442, 443, 444, 445) with rails (120, 130, 140, 150); 130, 140, 150) and each of the motors (412, 413, 414, 415) are mounted on the board (421), and the racks and gears (442, 443, 444, 445) are respectively corresponding The motors (412, 413, 414, 415) are connected to the respective rails (120, 130, 140, 150).

18. The direct-compensated honeycomb array intensity modulated grating system according to claim 17, wherein: each of the rack and gear transmission mechanisms (442, 443, 444, 445) has a rack and a gear, and a tooth The strips are disposed on the respective rails (120, 130, 140, 150), the gears are disposed on the respective motors (412, 413, 414, 415), and the gears mesh with the racks.

19. The direct-compensation honeycomb array intensity-modulating grating system according to claim 17, wherein: the rail mechanism (100) further comprises a slider (160), the slider (160) being disposed on the board (421) And located on the outer side of the guide rails (120, 130, 140, 150), the slider (160) is provided with an opening (161) corresponding to the needle magazine (250, 260, 270, 280), the driving mechanism (400) further includes a rack and gear transmission mechanism (441) connected to the slider (160) and a motor (411) connected to the rack and gear transmission mechanism (441).

If