CN205235192U - Neutron capture treatment system - Google Patents
Neutron capture treatment system Download PDFInfo
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- CN205235192U CN205235192U CN201520901136.XU CN201520901136U CN205235192U CN 205235192 U CN205235192 U CN 205235192U CN 201520901136 U CN201520901136 U CN 201520901136U CN 205235192 U CN205235192 U CN 205235192U
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Abstract
The utility model provides a neutron capture treatment system, including the beam shaping body, it includes the beam entry, locate the internal neutron production portion of beam shaping, border on in the slow fast body of neutron production portion, surround at fast external reflector and beam outlet slowly, and the nuclear reaction takes place in order to produce the neutron for neutron production portion and proton beam from the incident of beam entry, and it will be slowly fast from the neutron that neutron production portion produced to delay the fast body, and the reflector is led back skew neutron extremely delay the fast body in order improving super -heated neutron beam intensity, the beam shaping body including at least one can be to the moving part of keeping away from or be close to the direction motion of neutron production portion, the moving part has the primary importance and the second place, the moving part moves between this primary importance and the second place, and when the moving part was located the primary importance, neutron production portion can be changed, when the moving part lay in the second place, neutron production portion can not changed. This application neutron production portion changes conveniently, simple structure, and the application is nimble.
Description
Technical field
The utility model relates to a kind of neutron capture therapy system, relates in particular to a kind of neutron capture that can change neutron generating unitTherapy system.
Background technology
Along with the development of atomics, for example cobalt 60, linear accelerator, the treatment of electron beam isoradial have become cancer and have controlledOne of Main Means for the treatment of. But traditional photon or electronic therapy are subject to the restriction of the physical condition of radioactive ray own, killing tumourWhen cell, also can damage normal structures a large amount of in beam approach; In addition because tumour cell is to radioactive ray sensitivityThe difference of degree, traditional radiation therapy is for compared with the malignant tumour of tool radiation resistance (as: multirow glioblastoma(glioblastomamultiforme), melanocytoma (melanoma)) treatment effect often not good.
In order to reduce the radiation injury of tumour periphery normal structure, the target therapy concept in chemotherapy (chemotherapy) justBe applied in radiation cure; And for the tumour cell of radiation resistance, also develop actively has the relatively biological effect of height at presentAnswer the radiation source of (relativebiologicaleffectiveness, RBE), as proton therapeutic, heavy particle therapy, neutron capture are controlledTreat etc. Wherein, neutron capture treatment is in conjunction with above-mentioned two conceptions of species, as the treatment of boron neutron capture, is swelling by boracic medicineThe specificity of oncocyte is gathered, and coordinates neutron beam regulation and control accurately, provides than the better treatment of cancer of traditional radioactive ray and selects.
In the treatment of accelerator boron neutron capture, for produce the neutron generating unit needs of neutron beam with proton beam generation nuclear reactionThe irradiation and the radiationization that stand accelerating proton can produce damage to a certain degree, and the product of neutron generating unit to the neutron beam producingMatter has very important impact, in order to reduce the impact of neutron generating unit on neutron beam quality, and must periodic replacement neutron generating unit.
But accelerator boron neutron capture of the prior art is treated slow body and is mostly cylinder, neutron generating unit arranges conventionallyIn the slow body of certain depth, when neutron generating unit is damaged need to change time, must take more multiple steps to be dismantledGet off, this will cause more changing jobs of neutron generating unit to be difficult for carrying out.
Therefore, be necessary to provide a kind of new technical scheme to address the above problem in fact.
Utility model content
In order to address the above problem, an aspect of the present utility model provides a kind of neutron capture therapy system, comprises beam-shapingBody, described beam-shaping body comprises beam entrance, be located at neutron generating unit in beam-shaping body, be adjacent to neutron generating unitSlow body, be enclosed in neutron generating unit and slow external reflector and beam outlet, described neutron generating unit with from described beamThe proton beam generation nuclear reaction of entrance incident to be to produce neutron, and described slow body is slow the neutron producing from described neutron generating unit,Described reflector is led the neutron departing to be back to described slow body to improve epithermal neutron intensity of beam, and described beam-shaping body comprisesAt least one can to away from or near the movable part of neutron generating unit direction motion, described movable part is primary importance and secondBetween position, move, in the time that movable part is positioned at primary importance, neutron generating unit can be replaced; When movable part is positioned at the second placeTime, in the time that movable part is positioned at the second place, neutron generating unit can not be replaced.
Further, for the ease of the replacing of neutron generating unit, as one preferably, described movable part be partial reflector orPerson's partial reflector and the part combination of body slowly.
Further, for the ease of the taking-up of neutron generating unit, described movable part has symmetrical plane, and described movable part is right along thisClaim plane symmetry, described neutron generating unit has axis, the axis of the described neutron generating unit of symmetrical plane process of described movable part,Described reflector has the first straight line height, and described movable part has the second straight line height, and it is the 3rd straight that described neutron generating unit hasLine height, described the second straight line height is less than or equal to the first straight line height and is greater than the 3rd straight line height.
Further, in the time that the second straight line height of described movable part equals the first straight line height of reflector, if movable part andFaying face between reflector is being connected between plane and plane, and underway son is just caught the radiation that produces in the process for the treatment ofCan reveal by this faying face, as one preferably, described reflector has the first connecting portion, and described the first connecting portion hasThe first joint face and the first faying face, described movable part has the second connecting portion, described the second connecting portion have the second joint face andThe second faying face, when the second straight line height of movable part is less than the first straight line height of reflector and is greater than the 3rd of neutron generating unitWhen straight line height, the first joint face of described reflector overlaps with the first faying face, second joint face and second of described movable partFaying face overlap, the second faying face of described movable part be connected with the first faying face of reflector and with the described neutron generating unit axle that addsAny one planes overlapping at line place.
Further, described reflector has the first connecting portion, and described the first connecting portion has the first joint face and the first faying face,Described movable part has the second connecting portion, and described the second connecting portion has the second joint face and the second faying face, when described movable partThe second straight line height while equaling the first straight line height of reflector, described the first joint face is connected but is positioned at not with the first faying faceIsoplanar, described the second joint face is connected with the second faying face but is positioned at Different Plane, described the first joint face and the second joint faceConnect, the first faying face is connected with the second faying face.
Further, described neutron capture therapy system also comprises driven unit, and described driven unit comprises the door that carries movable partLock and allow door lock to away from or near the guide rail of neutron generating unit direction motion, described door lock along guide rail to away from or closeThe direction motion of beam-shaping body, when door lock is when moving away from beam-shaping body direction, described movable part is to producing away from neutronThe direction motion of portion; In the time that door lock moves to the direction near beam-shaping body, described movable part is to the side near neutron generating unitTo motion.
Further, it is external that described guide rail is located at beam-shaping, and described driven unit also comprises bracing frame, one of support frame as described aboveThe end support door lock other end moves in guide rail, described door lock along with bracing frame along guide rail movement and to away from or whole near beamThe direction motion of body.
Further, described neutron capture therapy system also comprises driven unit, and described driven unit comprises a lock and support door lockAnd a tumbler that allows door lock to rotate, described door lock movable support part, Dang Menzha rotates moving part while upwards rotating, described movable partTo the direction motion near neutron generating unit; When door lock rotates moving part while rotating, described movable part is to away from neutron generating unitDirection motion.
Further, describedly also comprise driven unit for neutron capture therapy system, described driven unit comprise first connecting rod,Second connecting rod and the third connecting rod that is connected first, second connecting rod, it is external that described first connecting rod is fixed on beam-shaping, and described secondOne end of connecting rod is fixed on the movable part other end and is connected in first connecting rod, and described first connecting rod drives third connecting rod motion, and the 3rd connectsThereby bar drive second connecting rod motion make movable part to away from or near the direction motion of neutron generating unit.
Further, being greater than neutron when the second straight line height of described movable part is less than the first straight line height of described reflector producesThe 3rd straight line height of life portion, is provided with guide rail in described reflector, and described movable part is installed on also can be along leading in beam-shaping bodyThereby rail to away from or near the direction motion of neutron generating unit.
Compared with prior art, the application has following beneficial effect: the application by arrange can to away from or near neutronThe movable part of generating unit direction motion, is convenient to the replacing of neutron generating unit, simple in structure, uses flexibly.
Brief description of the drawings
Fig. 1 is the schematic diagram of the application's neutron capture therapy system;
Fig. 2 a the application movable part is positioned at the schematic diagram of the second place;
Fig. 2 b is the schematic diagram that the application's movable part is positioned at primary importance;
Fig. 3 a be described in the application movable part the second faying face be connected with the first faying face of reflector and with described neutron generating unitThe schematic diagram of axis place planes overlapping;
Fig. 3 b is the cutaway view of the application's movable part along symmetrical plane A;
Fig. 4 a is that the first joint face and first faying face of reflector is the schematic diagram that inclination angle arranges;
Fig. 4 b is the mutual chimeric schematic diagram of the groove surface of movable part and the raised face of reflector;
Fig. 5 a is that piecemeal activity part is embedded the schematic diagram in door lock;
Fig. 5 b is the schematic diagram that driven unit has bracing frame;
Fig. 6 is the schematic diagram of the embodiment of the present application two;
Fig. 7 is the schematic diagram of the embodiment of the present application three;
Fig. 8 is the schematic diagram of the embodiment of the present application four.
Detailed description of the invention
Application in recent years increases gradually as a kind of means of effective treatment cancer for neutron capture treatment, wherein catches with boron neutronObtain treatment the most common, the neutron of supply boron neutron capture treatment can be supplied by nuclear reactor or accelerator. The application's enforcementExample treat as example taking accelerator boron neutron capture, and the basic module of accelerator boron neutron capture treatment generally includes for to being with electrochondriaAccelerator, neutron generating unit and hot removal system and beam-shaping body that son (as proton, deuteron etc.) accelerates, whereinAccelerate charged particle and the effect of metal neutron generating unit and produce neutron, the neutron yield rate that foundation is required and energy, available accelerationThe characteristics such as the materialization of charged particle energy and size of current, metal neutron generating unit are selected suitable nuclear reaction, often come into questionNuclear reaction have7Li(p,n)7Be and9Be(p,n)9B, these two kinds of reactions are all the endothermic reaction. The energy threshold of two kinds of nuclear reactions is dividedWei 1.881MeV and 2.055MeV, because the desirable neutron source of boron neutron capture treatment is the epithermal neutron of keV energy grade,If use in theory the only proton bombardment lithium metal neutron generating unit of a little higher than threshold values of energy, can produce the neutron of relative low energy, noThe too many slow processing of palpus just can be used for clinical, but lithium metal (Li) and two kinds of neutron generating units of beryllium metal (Be) and threshold valuesThe proton-effect cross section of energy is not high, for producing enough large neutron flux, conventionally selects the proton of higher-energy to carry out initiated core anti-Should.
The neutron energy distribution that desirable neutron generating unit should possess high neutron yield rate, generation approaches epithermal neutron energy district, nothing is too manyWear by force that radiation produces, the cheap easy operating of safety and the characteristic such as high temperature resistant, but in fact and cannot find the core that meets all requirementsReaction. In boron neutron capture therapeutic process, neutron generating unit, owing to being subject to impact, the radiation of accelerating proton, will inevitably be subject toDamage, and the quality of the neutron beam that neutron generating unit produces beam-shaping body has very large impact, so regular or rootDamage situations according to neutron generating unit is changed and is just seemed necessary neutron generating unit, introduces below during one can changeThe neutron capture therapy system of sub-generating unit.
Fig. 1 is the schematic diagram of the application's neutron capture therapy system 100. Described neutron capture therapy system 100 comprises that beam is wholeBody 10 and driven unit 20.
Described beam-shaping body 10 comprises beam entrance 11, neutron generating unit 12, is adjacent to the slow body of neutron generating unit 1213, be enclosed in reflector 14 and the beam outlet 15 outside neutron generating unit 12 and slow body 13. Described neutron generating unit 12 withFrom the proton beam generation nuclear reaction of described beam entrance 11 incidents, to produce neutron, described slow body 13 is to producing from described neutronThe neutron that portion 12 produces carries out slowly, described reflector 14 by the neutron departing from lead be back to described slow body 13 with improve superthermal inSub-intensity of beam.
Described reflector 14 comprise at least one can to away from or near the movable part 16 of neutron generating unit 12 directions motions.Described movable part 16 have primary importance L1 and second place L2 (in conjunction with Fig. 2 a and Fig. 2 b), described movable part 16 thisBetween one position L1 and second place L2, move, in the time that movable part 16 is positioned at primary importance L1, neutron generating unit 12 canBe replaced; In the time that movable part 16 is positioned at second place L2, neutron generating unit 12 can not be replaced. Specifically, when describedMovable part 16 is when moving to primary importance L1 away from the direction of neutron generating unit 12, and neutron generating unit 12 is from beam-shaping body10 expose, and take out neutron generating unit 12 and neutron generating unit 12 is changed; When the neutron generating unit 12 of more finishing changing is installedAfter beam-shaping body 10 is interior, described movable part 16 (is lived to moving to second place L2 near the direction of neutron generating unit 12Moving part 16 is coated on the periphery of neutron generating unit 12, and neutron generating unit 12 can not be replaced), in follow-up neutron capture treatmentIn process, this movable part 16 leads back with reflector 14 neutron departing from jointly.
Described movable part 16 can be the combination of partial reflector or partial reflector and the slow body of part. Movable part 16 is portionThe situation of sub reflector body refers to that front that neutron generating unit 12 is arranged on slow body 13 is reflected body 14 and envelopes, slow body 13Abut against the rear of neutron generating unit 12, now as long as partial reflector is set to mobilizable structure (being movable part), logicalCross movable part away from changing neutron generating unit. Movable part 16 is that the situation of the slow body combination of partial reflector and part refers to,It is coated that the front that a part for neutron generating unit 12 is positioned at slow body 13 is reflected body 14, and a part is embedded in slow body 13Coated by slow body 13, now in order to change neutron generating unit 12, by the part reflection being coated on outside neutron generating unit 12The slow body of body and part is set to mobilizable structure (being movable part), thereby realizes the replacing of neutron generating unit 12.
In conjunction with Fig. 3 a and Fig. 3 b, for the ease of the replacing of neutron generating unit 12, as one preferably, described movable part 16For symmetrical member, this symmetrical member has symmetrical plane A, and movable part 16 is along this symmetrical plane A symmetry, described symmetrical plane A warpCross the axis I of described neutron generating unit 12, described reflector 14 has the first straight line height H 1, and described movable part 16 hasTwo straight line height H 2, described neutron generating unit 12 has the 3rd straight line height H 3, the second straight line height of described movable part 16H2 is less than or equal to the first straight line height H 1 of reflector 14 and is greater than the 3rd straight line height of described neutron generating unit 12H3。
In conjunction with Fig. 4 a and Fig. 4 b, described reflector 14 also has the first connecting portion 140, and described movable part 16 has the second connectionPortion 160. Described the first connecting portion 140 has the first joint face 141 and the first faying face 142 being connected with the first joint face 141,Described the second connecting portion 160 has the second joint face 161 and the second faying face 162 being connected with the second joint face 161.
When the second straight line height H 2 of described movable part 16 is less than the first straight line height H 1 of reflector 14 and is greater than described neutronWhen the 3rd straight line height H 3 of generating unit 12, the first joint face 141 of described reflector 14 overlaps with the first faying face 142,The second joint face 161 of described movable part 16 overlaps with the second faying face 162, the second faying face 162 of described movable part 16Be connected with the first faying face 142 of reflector 14 and with any one planes overlapping of axis place of described neutron generating unit 12 (asFig. 3 a). Now described movable part 16 is a part of reflector 14, in this case, when described movable part 16 toWhile moving to primary importance L1 away from the direction of neutron generating unit 12, movable part 16 forms breach on described reflector 14,Described neutron generating unit 12 is exposed from this breach, in this indentation, there, neutron generating unit 12 is changed; When described movable part 16While moving to second place L2 to the direction of close neutron generating unit 12, described movable part 16 is enclosed in described neutron generating unit12 periphery, in follow-up neutron capture therapeutic process, movable part 16 leads back with reflector 14 neutron departing from jointly.
In the time that the second straight line height H 2 of described movable part 16 equals the first straight line height H 1 of reflector 14, described movable part16 are the half of the reflector 14 that is enclosed in neutron generating unit 12 peripheries. In order to be reduced in follow-up neutron capture therapeutic processThe particle or the radiation that leak from movable part 16 and the junction of reflector 14, as one preferably, described reflector 14The first joint face 141 and the first faying face 142 are positioned at Different Plane, the second joint face 161 of described movable part 16 and the second knotClose face 162 and be positioned at Different Plane, described the first joint face 141 and the second joint face 161 are fitted, the first faying face 142 andTwo faying faces 162 are fitted. The first connecting portion 140 and the second connecting portion 160 can specific as followsly arrange (in conjunction with Fig. 4 a), secondJoint face 161 and the second faying face 162 are inclination angle and arrange, and described the first faying face 142 and the first joint face 141 are inclinationAngle arrange, aforementioned two inclinations angle and be 180 degree. When movable part 16 is enclosed in the periphery time institute of described neutron generating unit 12State the second faying face 162 and the first faying face 142 is fitted, the second joint face 161 and the first joint face 141 are fitted. First connectsConnect portion 140 and the second connecting portion 160 and also can arrange as follows that (in conjunction with Fig. 4 b), described the second faying face 162 is from the second connectionThe groove surface that face 161 is arranged with, described the first faying face 142 is from the outstanding raised face of the first joint face 141, when movable part 16While being enclosed in the periphery of described neutron generating unit 12, groove surface and raised face are mutually chimeric.
Below introduce in detail the structure of driven unit 20, another, because above the structure of movable part 16 was carried out being situated between in detailContinue, be below just no longer repeated in this description, in actual application, can according to real needs by the structure of above-mentioned movable part 16 withDriven unit 20 hereinafter described carries out combination, although and be all below to have two movable parts taking reflector to enter as example in embodimentRow explanation, if but a movable part 16 is set in actual application just can be convenient to the replacing of neutron generating unit 12,A movable part is set so.
Shown in Fig. 2 a and Fig. 2 b, be also the application's embodiment mono-, this embodiment has two with reflector 14 to be positioned at neutronGenerating unit 12 both sides and interconnected movable part 16 (i.e. the first movable part 163 and the second movable part 164) are introduced for example.Described driven unit 20 comprises the door lock 22 of the guide rail 21 be located at outside beam-shaping body 10 and movable support part 16, described door lock22 in guide rail 21 motion with drive movable part 16 to away from or near the direction motion of neutron generating unit 12. Movable part 16Comprise the first movable part 163 and the second movable part 164, described door lock 22 comprises first lock 221 He moving along guide rail 21Second lock 222, described first lock 221 supports the first movable part 163, and described second lock 222 supports the second movable part164. Described first lock 221 and second lock 222 move and drive respectively described the first movable part 163 and in guide rail 21Two movable parts 164 to away from or near the direction motion of neutron generating unit 12. When 222 points, first lock 221 and second lockNot when moving to primary importance L1 away from the direction of beam-shaping body 10, described the first movable part 163 and the second movable part 164Also respectively to the direction motion away from neutron generating unit 12, now neutron generating unit 12 is exposed from beam-shaping body 10, centeringSub-generating unit 12 is changed; When first lock 221 and second lock 222 are respectively to the direction fortune near neutron generating unit 12While moving second place L2, described the first movable part 163 and the second movable part 164 are also to the direction near neutron generating unit 12Motion, until the first movable part 163 and the second movable part 164 are coated on neutron generating unit 12 peripheries, is controlled at follow-up neutron captureThe first movable part 163 described in treatment process and the second movable part 164 are for leading back the neutron departing from.
For the ease of structural design, as one preferably, the structure phase of described the first movable part 163 and the second movable part 164With, described first lock 221 is identical with the structure of second lock 222, hereinafter for the ease of introducing, all to be referred to as movable part16 are introduced with a door lock 22.
The structure of described door lock 22 can have a variety of, in the present embodiment, and the second straight line height H 2 of described movable part 16 etc.In the time of the first straight line height H 1 of reflector 14, door lock 22 is coated on the periphery of movable part 16, can be understood as movable part 16Be entrenched in a lock 22, the motion of described door lock 22 in guide rail 21 is equivalent to the open and close movement of a lock 22, described movable part16 foldings with door lock 22 away from or near neutron generating unit 12. As one preferably, described door lock 22 is by concrete systemBecome. Certainly,, in order to save space or cost, also the half of movable part 16 part even still less can be embedded at Men Zha(in conjunction with Fig. 5 a), as long as the design of door lock 22 can support described movable part 16, and can drive movable part 16 to far in 22From or near the direction motion of neutron generating unit 12. When the second straight line height H 2 of movable part 16 is less than reflector 14The first straight line height time can also between door lock 22 and guide rail 21, bracing frame 23 be set (in conjunction with Fig. 5 b). Support frame as described aboveOne end of 23 is fixing with door lock 22, the other end in guide rail 21 to away from or near the direction motion of beam-shaping body 10.Described movable part 16 with the motion of door lock 22 along guide rail 21 to away from or move near the direction of neutron generating unit 12. AlsoTo say, described door lock 22 by bracing frame 23 motion in guide rail 21 drive a door lock 22 to move to avoid need to be by door lock 22Be arranged to enough large size and make its directly motion in guide rail 21, thereby reduced the size of door lock 22.
Figure 6 shows that the schematic diagram of the embodiment of the present application two. Described driven unit 20 comprises tumbler 24 (as axle part) and solidBe held in the door lock 22 ' on tumbler 24. Described tumbler 24 be positioned at beam-shaping body 10 under and this tumbler 24Axis parallel with the axis of described neutron generating unit 12. The described door lock 22 ' moving part 24 that rotates rotates up and down, when described lock22 ' when move downward, and described door lock 22 ' drives movable part 16 to the direction motion away from neutron generating unit 12, described neutronGenerating unit 12 is exposed, and changes neutron generating unit 12; In the time that door lock 22 ' upwards rotates, drive movable part 16 to producing near neutronThe direction of life portion 12 is rotated, and described movable part 16 is enclosed in neutron generating unit 12 peripheries, in follow-up neutron capture therapeutic processFor leading back the neutron departing from.
Fig. 7 is that the application implements three schematic diagram. Driven unit 20 described in the present embodiment comprises and is fixed on beam-shaping body 10Outer first connecting rod 25, be connected in the second connecting rod 26 of movable part 16 and connect the of first connecting rod 25 and second connecting rod 26Three connecting rods 27, described third connecting rod 27 motions drive second connecting rod 26 to move, and described movable part 16 is with the fortune of second connecting rod 26Trend away from or near the direction motion of neutron generating unit 12.
Fig. 8 is the schematic diagram of the embodiment of the present application four. When the second straight line height H 2 of movable part 16 is less than described reflector 14The first straight line height H 1 time (be especially less than the 3rd straight line of neutron generating unit 12 when the second straight line height H 2 of movable part 16When height H 3), can be at the interior guide rail 28 that arranges of reflector 14, and in the outside wall surface of movable part 16, handle 165 is set, pass throughDrawing handle 165 drive movable part 16 along guide rail 28 to away from or move near the direction of neutron generating unit 12. Certainly, alsoDriven unit in above-described embodiment one to embodiment tri-can be applied in the present embodiment to substitute handle, just not detailed hereinIntroduce.
The neutron capture therapy system that the application discloses is not limited to content and the represented knot of accompanying drawing described in above embodimentStructure. On the application's basis to the change apparently that wherein makes material, shape and the position of member, substitute or repairChange, all within the claimed scope of the application.
Claims (10)
1. a neutron capture therapy system, comprise beam-shaping body, it is characterized in that: described beam-shaping body comprises beam entrance, be located at the neutron generating unit in beam-shaping body, be adjacent to the slow body of neutron generating unit, be enclosed in neutron generating unit and slow external reflector and beam outlet, described neutron generating unit with from the proton beam generation nuclear reaction of described beam entrance incident to produce neutron, described slow body is by slow the neutron producing from described neutron generating unit, described reflector is led the neutron departing to be back to described slow body to improve epithermal neutron intensity of beam, described beam-shaping body comprise at least one can to away from or near the movable part of neutron generating unit direction motion, described movable part has primary importance and the second place, described movable part moves between this primary importance and the second place, in the time that movable part is positioned at primary importance, neutron generating unit can be replaced, in the time that movable part is positioned at the second place, neutron generating unit can not be replaced.
2. neutron capture therapy system according to claim 1, is characterized in that: described movable part is the combination of partial reflector or partial reflector and the slow body of part.
3. neutron capture therapy system according to claim 1, it is characterized in that: described movable part has symmetrical plane, described movable part is along this symmetrical plane symmetry, described neutron generating unit has axis, the symmetrical plane of described movable part is through the axis of described neutron generating unit, described reflector has the first straight line height, described movable part has the second straight line height, described neutron generating unit has the 3rd straight line height, and described the second straight line height is less than or equal to the first straight line height and is greater than the 3rd straight line height.
4. neutron capture therapy system according to claim 2, it is characterized in that: described reflector has the first connecting portion, described the first connecting portion has the first joint face and the first faying face, described movable part has the second connecting portion, described the second connecting portion has the second joint face and the second faying face, in the time that the second straight line height of movable part is less than the first straight line height of reflector and is greater than the 3rd straight line height of neutron generating unit, the first joint face of described reflector overlaps with the first faying face, the second joint face of described movable part overlaps with the second faying face, the second faying face of described movable part be connected with the first faying face of reflector and with any one planes overlapping at described neutron generating unit axis place.
5. neutron capture therapy system according to claim 2, it is characterized in that: described reflector has the first connecting portion, described the first connecting portion has the first joint face and the first faying face, described movable part has the second connecting portion, described the second connecting portion has the second joint face and the second faying face, in the time that the second straight line height of described movable part equals the first straight line height of reflector, described the first joint face is connected with the first faying face but is positioned at Different Plane, described the second joint face is connected with the second faying face but is positioned at Different Plane, described the first joint face is connected with the second joint face, the first faying face is connected with the second faying face.
6. neutron capture therapy system according to claim 1, it is characterized in that: described neutron capture therapy system also comprises driven unit, described driven unit comprise the door lock of carrying movable part and allow door lock to away from or near the guide rail of neutron generating unit direction motion, described door lock along guide rail to away from or move near the direction of beam-shaping body, when door lock is when moving away from beam-shaping body direction, described movable part is to the direction motion away from neutron generating unit; In the time that door lock moves to the direction near beam-shaping body, described movable part is to the direction motion near neutron generating unit.
7. neutron capture therapy system according to claim 6, it is characterized in that: it is external that described guide rail is located at beam-shaping, described driven unit also comprises bracing frame, one end support door lock other end of support frame as described above moves in guide rail, described door lock along with bracing frame along guide rail movement and to away from or move near the direction of beam-shaping body.
8. neutron capture therapy system according to claim 1, it is characterized in that: described neutron capture therapy system also comprises driven unit, described driven unit comprises a lock and support door lock the tumbler that allows door lock to rotate, described door lock movable support part, when door lock rotates moving part while upwards rotating, described movable part is to the direction motion near neutron generating unit; When door lock rotates moving part while rotating, described movable part is to the direction motion away from neutron generating unit.
9. neutron capture therapy system according to claim 1, it is characterized in that: described neutron capture therapy system also comprises driven unit, described driven unit comprises the third connecting rod of first connecting rod, second connecting rod and first, second connecting rod of connection, it is external that described first connecting rod is fixed on beam-shaping, one end of described second connecting rod is fixed on the movable part other end and is connected in first connecting rod, described first connecting rod drives third connecting rod motion, thus third connecting rod drive second connecting rod motion make movable part to away from or near the direction motion of neutron generating unit.
10. neutron capture therapy system according to claim 2, it is characterized in that: when the second straight line height of described movable part is less than the first straight line height of described reflector and is greater than the 3rd straight line height of neutron generating unit, in described reflector, be provided with guide rail, described movable part be installed in beam-shaping body and can along guide rail to away from or move near the direction of neutron generating unit.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520901136.XU CN205235192U (en) | 2015-11-12 | 2015-11-12 | Neutron capture treatment system |
| RU2019113042A RU2717364C1 (en) | 2015-11-12 | 2016-10-18 | Neutron capturing therapy system |
| PCT/CN2016/102332 WO2017080344A1 (en) | 2015-11-12 | 2016-10-18 | Neutron capture therapy system |
| JP2018523819A JP6830483B2 (en) | 2015-11-12 | 2016-10-18 | Neutron capture therapy system |
| EP19187968.3A EP3586922B1 (en) | 2015-11-12 | 2016-10-18 | Neutron capture therapy system |
| EP16863521.7A EP3357536B1 (en) | 2015-11-12 | 2016-10-18 | Neutron capture therapy system |
| TW105217113U TWM541312U (en) | 2015-11-12 | 2016-11-10 | Neutron capture therapy system |
| US15/967,727 US10898731B2 (en) | 2015-11-12 | 2018-05-01 | Neutron capture therapy system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520901136.XU CN205235192U (en) | 2015-11-12 | 2015-11-12 | Neutron capture treatment system |
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| CN205235192U true CN205235192U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520901136.XU Withdrawn - After Issue CN205235192U (en) | 2015-11-12 | 2015-11-12 | Neutron capture treatment system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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