CN101521981A - Target recovery device - Google Patents
Target recovery device Download PDFInfo
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- CN101521981A CN101521981A CN200910126606A CN200910126606A CN101521981A CN 101521981 A CN101521981 A CN 101521981A CN 200910126606 A CN200910126606 A CN 200910126606A CN 200910126606 A CN200910126606 A CN 200910126606A CN 101521981 A CN101521981 A CN 101521981A
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- 238000011084 recovery Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 230000015556 catabolic process Effects 0.000 claims description 53
- 238000006731 degradation reaction Methods 0.000 claims description 53
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 description 10
- 230000008520 organization Effects 0.000 description 10
- 238000011144 upstream manufacturing Methods 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 8
- 238000002560 therapeutic procedure Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 206010028980 Neoplasm Diseases 0.000 description 4
- 201000011510 cancer Diseases 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000000155 isotopic effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 108010036050 human cationic antimicrobial protein 57 Proteins 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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- 238000004801 process automation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K5/00—Irradiation devices
- G21K5/04—Irradiation devices with beam-forming means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
- H01J37/3411—Constructional aspects of the reactor
- H01J37/3414—Targets
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H6/00—Targets for producing nuclear reactions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N2005/1019—Sources therefor
- A61N2005/1022—Generators, e.g. X-ray tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
- A61N2005/109—Neutrons
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiology & Medical Imaging (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Particle Accelerators (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The invention provides a target recovery device capable of easily recovering a target portion of a neutron generation device. The neutron moderator (7) has a housing chamber (8a) for housing the target device (5), and the target device (5) has a target (6). The neutron moderating device (7) is moved relative to the beam pipe (11) to expose the target device (5) from the inside of the housing chamber (8 a). A collection container (43) is disposed vertically below the target device (5), and the connection of a main connection mechanism (13) that detachably connects the target device and the bundle pipe (11) is released. Then, the target device detached from the bundle pipe (11) falls down and is stored in a collection container (43). As a result, the target (6) can be easily removed from the bundle duct (11) together with the target device (5) and collected.
Description
Technical field
The present invention relates to reclaim from the neutron generation device target (target) retracting device of target portion, this neutron generation device possesses the irradiation of the accelerated particle of accepting proton etc. and produces the target portion of neutron.
Background technology
In cancer treatment etc., radiation cure is subjected to higher evaluation.Particularly, neutron-capture therapy (NCT:Neutron Capture Therapy) on principle, have cellular level selective therapy possibility and receive publicity.In NCT, the period of the day from 11 p.m. to 1 a.m in irradiation, the stable isotopic element that will produce heavily loaded electrochondria etc. of the shorter and high LET of range (Linear Energy Transfer linear energy transfer (LET)) is taken in the cancer cell that will treat in advance.Then, the irradiation neutron by dispersing of heavily loaded electrochondria, only destroys cancer cell selectively.The stable isotopic element that uses in NCT is heavily loaded electrochondria that produces high LET with neutron reaction
10B or
6Li etc., neutron are that they have the long-pending low-energy neutron in bigger reaction cross-section relatively.At present, use as NCT
10B and thermal neutron or the outer neutron of heat also have the situation that is called boron neutron-capture therapy (BNCT:BoronNCT).
In patent documentation 1, the device that the middle neutrons that uses such as making NCT produces is disclosed.In this device, possess: shine proton and the target portion that produces neutron with the above energy of 20MeV; With the neutron degradation portion (being commonly referred to as " decelerator ") that makes the neutron degradation that produces from target portion.Target portion and neutron degradation portion are fixed in neutron degradation parts or the neutron baffle, and constitute, and making from device is minimum to the neutron amount of external leaks.
[patent documentation 1] TOHKEMY 2006-47115 communique
Target portion accepts the irradiation of proton by Be formations such as (berylliums), radiationization and depletion, so its life-span is about 1 year, in order stably to produce neutron, need will be old the recovery of target portion, be replaced by new target portion.But, in device in the past, do not consider that for the recovery of target portion also need to prevent by radiation exposure, it is very difficult reclaiming target portion.
Summary of the invention
The objective of the invention is to solve above problem, purpose provides a kind of target recovering device that can easily reclaim the target of neutron generation device.
The present invention is a kind of target recovering device, from the end that possesses pipeline pipe that accelerated particle passes through, is connected the pipeline pipe, the irradiation of accepting accelerated particle produces the target portion of neutron and makes the neutron generation device of the neutron degradation portion of the neutron degradation that target portion produces reclaim target portion, it is characterized in that, possess: driving mechanism, neutron degradation portion relative duct size pipe is relatively moved, target portion is left from the neutron reduction part; And bindiny mechanism, the pipeline pipe is connected freely with target portion dismounting.
In relevant target recovering device of the present invention, driving mechanism makes neutron degradation portion relatively move with respect to the pipeline pipe, and target portion is left from the neutron reduction part.The pipeline pipe is connected by bindiny mechanism's dismounting freely with target portion, by by manual, remote operation or automatically control etc. the connection of bindiny mechanism is removed, thus, target portion easily can be reclaimed from the pipeline pipe.Particularly, according to the present invention, can by remote operation or automatically control carry out operation till target portion pulled down and reclaim from the pipeline pipe simply, also be effective for the reduction of the radiation of radioactive ray.
And then preferably, neutron degradation portion has the reception room of accommodating target portion; Driving mechanism makes target portion leave from the neutron reduction part, and target portion is exposed in reception room.Even target portion is housed in the reception room of neutron degradation portion, according to the present invention, owing to can after target portion is exposed from reception room, the connection of bindiny mechanism be removed, so also target portion easily can be reclaimed.
And then, preferably, also possess the pipe portion of the end that makes target portion be attached at the pipeline pipe; Bindiny mechanism has: fixed mechanism, with the end binding of pipe portion and pipeline pipe; Thermal expansion portion loosens the binding strength of fixed mechanism by thermal expansion; And the heating part, portion heats to thermal expansion.By with the heating part thermal expansion portion being heated, the binding strength of fixed mechanism dies down, so target portion easily can be reclaimed from the pipeline pipe.
And then, preferably, be provided with the fixation side flange at the end of pipeline pipe; Be formed with the side flange of accepting that is connected on the fixation side flange in pipe portion; Fixed mechanism has in order to surround the fixation side flange and to accept side flange and the clamp chain of reeling and the bolt part that the two ends of clamp chain are connected to each other; Thermal expansion portion be installed in bolt part around, and, by thermal expansion bolt part is pulled vertically, the binding strength of bolt part is loosened.
In said structure, the clamp chain of fixed mechanism is configured to, be wound on the fixation side flange and accept on the side flange, if clamp chain is linked with bolt part, then the fixation side flange and accept the side flange upper edge circumferentially effect impartial pushing force is arranged.Thereby, can be accurately, be connected reliably with pipeline pipe and target portion.In addition, if by the heating part thermal expansion portion is heated, then bolt part is pulled by thermal expansion portion, and binding strength is loosened.So fixation side flange and the connection of accepting side flange are disengaged, and target portion can be pulled down simply from the pipeline pipe, target portion easily can be reclaimed.
And then, preferably, also possess: recoverer, reclaim the target portion that has removed after the connection of bindiny mechanism; With the recoverer driving mechanism, keep recoverer movably; Neutron degradation portion can move between the retreating position that target portion is housed in the collecting position in the reception room and target portion is exposed in the reception room; The recoverer driving mechanism is under the situation of collecting position in neutron degradation portion, recoverer is remained on the position of readiness that leaves from the neutron reduction part, be in neutron degradation portion under the situation of retreating position, recoverer is remained on recovery position as the vertical below of target portion.
In said structure, be in neutron degradation portion under the situation of retreating position, recoverer moves to from position of readiness and reclaims the position, so reclaim target portion can for the mobile obstacle ground that brings of neutron degradation portion.
The invention effect:
According to the present invention, can easily reclaim the target portion of neutron generation device.
Description of drawings
Fig. 1 is the target recovering device of relevant the 1st execution mode of the present invention and the end view of BNCT device.
Fig. 2 is the vertical view of BNCT device and target recovering device.
Fig. 3 is the rearview of BNCT device and target recovering device.
Fig. 4 is the stereogram that the bindiny mechanism of the target recovering device of relevant the 1st execution mode is illustrated in the center.
Fig. 5 is the side view cutaway drawing of expression by the clamp chain under the state of bolt binding.
Fig. 6 is that the cutaway view of expression is amplified at the both ends of the clamp chain under the state that will link by bolt.
Fig. 7 is the cutaway view that the both ends of the clamp chain under the state of bolt fracture is amplified expression.
Fig. 8 is the end view of the clamp chain after the expression bolt fracture.
Fig. 9 is that expression neutron degradation device advances and arrives the stereogram of the state that retreating position, target assembly expose.
Figure 10 is the stereogram of the state after the connection of secondary bindiny mechanism is removed in expression.
Figure 11 is the stereogram that connection, the target assembly of the main bindiny mechanism of expression releasing is housed in the state in the returnable.
Figure 12 is the stereogram that the bindiny mechanism of the target recovering device of relevant the 2nd execution mode is illustrated in the center.
Embodiment
Below, describe with reference to the preferred implementation of accompanying drawing relevant target recovering device of the present invention.Fig. 1 is the target recovering device of relevant present embodiment and the end view of BNCT device, and Fig. 2 is the vertical view of BNCT device and target recovering device, and Fig. 3 is the rearview of BNCT device and target recovering device.
As Fig. 1～shown in Figure 3, BNCT device (neutron generation device) the 1st is used for being undertaken by neutron-capture therapy (NCT:Neutron Capture Therapy) device of cancer treatment etc., and BNCT device 1 possesses: the instrument table 3 that the patient takes one's seat in order to receive treatment; Target (target) device 5 that keeps target (target portion) 6 (with reference to Fig. 4 and Fig. 5), this target 6 are accepted proton (below be called " proton the line ") P of the high speed of being made by cyclotron and are produced neutron; With the neutron N that is produced by target 6 is slowed down, the neutron degradation device (being also referred to as " decelerator ") 7 that the patient is shone as low-energy neutron N.Proton line P is corresponding to accelerated particle.In addition, in the following description, instrument table 3 sides of establishing the neutron degradation device 7 among Fig. 1 be preceding, establish opposition side and be after, to describe.
Neutron degradation device (neutron degradation portion) 7 possesses the main part 8 of the deceleration component of containing.At the rear side of main part 8, be formed with reception room 8a, this reception room 8a has formed the cavity cylindraceous of taking in target assembly 5, in the place ahead of reception room 8a, disposes iron (Fe), aluminium (Al), CaF successively as deceleration component
2In addition, around reception room 8a and deceleration component, dispose the reflection part that constitutes by lead for the leakage that prevents neutron N.In the place ahead of main part 8, dispose the collimator 9 of the direction of illumination of regulating neutron N.
Below neutron degradation device 7, be equipped with along the track R1 of the pair of right and left of fore-and-aft direction extension, in the bottom of neutron degradation device 7, be provided with the LM guidance part (driving mechanism) 10 that moves up in front and back along track R1.By the driving of LM guidance part 10, neutron degradation device 7 can front and back ground reciprocating motion.
As Fig. 4～shown in Figure 6, connect and be connected freely on the beam tube road 11 by main bindiny mechanism (bindiny mechanism) 13 dismounting with short tube 5c.End in beam tube road 11 is provided with fixation side flange 11a, on connecting with short tube 5c, is provided with to be connected to and accepts side flange 5d (with reference to Fig. 5) on the fixation side flange 11a.The external profile diameter of accepting side flange 5d is consistent with the external profile diameter of fixation side flange 11a, accepts side flange 5d so that the state of outer rim unanimity is connected on the fixation side flange 11a.
Around the axial region 19a of bolt 19, the marmem portion (thermal expansion portion) 21 of tubular is installed.Marmem portion 21 is clipped between the head 19f of the 2nd linking part 17 and bolt 19 and disposes, and two ends push the head 19f of the 2nd linking part 17 or bolt 19 respectively via packing ring.By bolt 19 is fastening, the 1st linking part the 16, the 2nd linking part 17 and marmem portion 21 are fixed.If the 1st linking part 16 and the 2nd linking part 17 is fastening, then clamp chain 15 is with fixation side flange 11a and to accept side flange 5d fastening towards center position from outer rim.Clamp chain 15 is wound on fixation side flange 11a and accepts side flange 5d and go up and dispose, thus fixation side flange 11a and accept side flange 5d upper edge circumferentially effect impartial pushing force is arranged, beam tube road 11 is connected well reliably with target assembly 5 precision.
Around marmem portion 21, the heating part 23 of tubular is installed, in the heating part 23 around cap 25 is installed.Connecting the distribution 27 that is connected with power circuit 26 (with reference to Fig. 2) on heating part 23, if to heating part 23 energisings, then marmem portions 21 are heated in heating part 23.Marmem portion 21 passes through, mainly along the axis L direction thermal expansion of bolt 19 bolt 19 to be pulled along axis L direction from the heating of heating part 23.On the axial region 19a of bolt 19, be formed with notch (notch) 19b.Notch 19b is formed on the 1st linking part 16 and the boundary vicinity position that the 2nd linking part 17 contacts.If bolt 19 is subjected to the drag force to axis L direction, then in notch 19b place fracture (with reference to Fig. 7).So, clamp chain 15 fastening power are disengaged, target assembly 5 is disengaged (with reference to Fig. 8) with being connected of beam tube road 11.Constitute fixed mechanism 20 by clamp chain 15 and bolt 19, constitute main bindiny mechanism 13 by fixed mechanism 20, marmem portion 21 and heating part 23.
On the cooling end 5b of target assembly 5 (with reference to Fig. 9), be fixed with and be used for carrying out the upstream side short tube 31 that cooling water imports, upstream side short tube 31 is connected in order to import on the upstream tube 33 that cooling water lays freely by 41 dismounting of secondary bindiny mechanism.In addition, be fixed with the downstream short tube 35 that is used to discharge cooling water on cooling end 5b, downstream short tube 35 is connected in order to discharge on the downstream tube 37 that cooling water lays freely by 41 dismounting of secondary bindiny mechanism.Upstream tube 33 is against each other with the flange part of upstream side short tube 31, and is same, and downstream tube 37 is against each other with the flange of downstream short tube 35.Secondary bindiny mechanism 41 is by being connected upstream tube 33 with main bindiny mechanism 13 same structure with upstream side short tube 31, and downstream tube 37 is connected with downstream short tube 35.
As shown in Figures 2 and 3, neutron degradation device 7 can move forward and backward along track R1, and the state that moves to rear is for being housed in target assembly 5 the collecting position A1 in the reception room 8a.Neutron degradation device 7 can make target assembly 5 expose in reception room 8a by moving to the place ahead from collecting position A1, and this state becomes retreating position A2.Neutron degradation device 7 can reciprocating motion between collecting position A1 and retreating position A2, and the zone that neutron degradation device 7 passes through by this reciprocating motion is the track C of neutron degradation device 7.
As shown in Figure 3, target recovering device 2 possesses the container closing appliance 47 of the top of the returnable 43 that is configured in position of readiness B2.Container closing appliance 47 possesses maintenance with the lid maintaining part 47a of the cap 46 of the upper opening 43a of returnable 43 sealing with drive the drive division 47b that covers maintaining part 47a along the vertical direction.Drive division 47b is installed in cap 46 on the returnable 43, so that it is with the upper opening 43a shutoff of returnable 43.
That is the reciprocating motion of the neutron degradation device 7 between controlling organization 48 control collecting position A1 and the retreating position A2.In addition, the driving of controlling organization 48 control returnable driving mechanisms 45, be at neutron degradation device 7 under the situation of collecting position A1, the position of readiness B2 standby that returnable 43 is left at the track C from neutron deceleration device 7, be at neutron degradation device 7 under the situation of retreating position A2, returnable 43 is entered into as the recovery position B1 below the vertical direction of target assembly 5.In addition, control device 48 control power circuits 26 are to heating part 23 energisings of main bindiny mechanism 13 and make bolt 19 fractures, with the releasing that is connected between target assembly 5 and the beam tube road 11.And then control device 48 makes the returnable 43 of having taken in the target assembly 5 that falls move to position of readiness B2, drives container closing appliance 47 and uses the upper opening 43a sealing of cap 46 with returnable 43.Target recovering device 2 possesses LM guidance part 10, main bindiny mechanism 13, secondary bindiny mechanism 41, returnable 43, returnable driving mechanism 45, container closing appliance 47, controlling organization 48 and constitutes.
Then, with reference to Fig. 2, Fig. 3 and Fig. 9～Figure 11, the recovery method of the target assembly 5 that target recovering device 2 is carried out describes.Target assembly 5 possesses irradiation proton line P and produces the target 6 of neutron N, owing to the goods and materials that have stronger radiant for radiationization, so the common life-span only is about 1 year, needs suitably to change.In the present embodiment, not target 6 monomers, and change according to target assembly 5.When changing target assembly 5, at first need the target assembly 5 of radiationization is reclaimed, is provided with new target assembly 5.
When target assembly 5 is reclaimed, the remote operation by operator or based on the automatic running of specified action order, controlling organization 48 advances neutron degradation device 7, and the target assembly 5 of radiationization is exposed.And then controlling organization 48 makes the returnable 43 that is in position of readiness B2 enter towards the recovery position of the below of target assembly 5 B1, and B1 place, position stops (with reference to Fig. 9) in recovery.
Then, will connect releasing, at first, disconnect the upstream tube 33 and the downstream tube 37 (with reference to Figure 10) of the stream that becomes cooling water from target assembly 5 by secondary bindiny mechanism 41.Then, 48 pairs of main bindiny mechanisms 13 of controlling organization switch on and will connect releasing, make target assembly 5 11 disengagings from the beam tube road.As a result, target assembly 5 falls and is accommodated in the returnable 43 (with reference to Figure 11).
As shown in Figure 3, controlling organization 48 makes the returnable 43 that contains target assembly 5 move to position of readiness B2, drives container closing appliance 47 and cap 46 is installed on the upper opening 43a of returnable 43.Then, controlling organization 48 is moved further returnable 43 by returnable driving mechanism 45, returnable 43 is transported to store by the storage area of the material of radiationization.
If will be taken out of from being provided with the indoor of BNCT device 1 by the target assembly 5 of radiationization, then,, the operating personnel is provided with the indoor of BNCT device 1 so entering into this indoor no longer including by the possibility of radiation exposure, new target assembly 5 is installed on the beam tube road 11.In addition, also can make this installation exercise automation.
In above target recovering device 2, LM guidance part 10 makes neutron degradation device 7 relatively move with respect to beam tube road 11, and target assembly 5 is exposed from reception room 8a, and target assembly 5 is left from neutron deceleration device 7.The upstream tube 33 of beam tube road 11, cooling water and downstream tube 37 are connected by main bindiny mechanism 13,41 dismounting of secondary bindiny mechanism freely with target assembly 5, by the connection of main bindiny mechanism 13 and secondary bindiny mechanism 41 is removed, target assembly 5 is 11 disengagings from the beam tube road, target assembly 5 easily can be reclaimed.Particularly, dispose returnable 43 below target assembly 5 vertical, 11 target assemblies 5 that break away from drop in the returnable 43 naturally from the beam tube road, with target assembly 5 with returnable 43 recovery.As a result, can easily will pull down target assembly 5 and be received into process automation the returnable 43, can when preventing, easily reclaim target assembly 5 by radiation from beam tube road 11.
And then main bindiny mechanism 13 possesses the marmem portion 21 of thermal expansion by the heating of heating part 23, if marmem portion 21 is heated, then bolt 19 is pulled by marmem portion 21.As a result, the screwing force of bolt 19 is loosened, target assembly 5 11 disengagings from the beam tube road easily.Particularly, in the present embodiment, be formed with notch 19b on bolt 19, if pulled vertically by marmem portion 21, then bolt 19 ruptures at notch 19b place.So the clamp chain 15 that links with bolt 19 is disengaged fully, target assembly 5 is 11 disengagings from the beam tube road, can easily reclaim target assembly 5.
And then, be at neutron degradation device 7 under the situation of retreating position A2, returnable 43 moves to from position of readiness B2 and reclaims position B1, so can be not to the mobile obstacle ground recovery target assembly 5 that brings of neutron degradation device 7.
(the 2nd execution mode)
With reference to Figure 12, the target recovering device of relevant the 2nd execution mode is described.Figure 12 is the stereogram that the bindiny mechanism of the target recovering device of relevant the 2nd execution mode is illustrated in the center.In the 2nd execution mode, compare with the 1st execution mode, mainly be that target assembly 51 dismounting are connected to bindiny mechanism's 53 differences on the beam tube road 11 freely.So, in the explanation of the target recovering device of relevant the 2nd execution mode, be that the center describes with the difference, for same key element or parts etc., give the label identical and omit explanation with the 1st execution mode.
Target assembly 51 possesses the target retainer 51a that target 6 is arranged in internal fixation.On target retainer 51a, be provided with the connection that is connected on the beam tube road 11 short tube 51b, on the periphery that connects with short tube 51b, be wound with the copper pipe 51c that cooling water is imported or discharges.On connecting, be provided with and accept side flange 51d on the fixation side flange 11c that is connected to beam tube road 11 with short tube 51b.Accepting to be formed with screwed hole on the side flange 51d, on fixation side flange 11c, be formed with inserting hole corresponding to screwed hole.Insert the bolt 55 that leads to inserting hole and be screwed in the screwed hole and possess the structure same, on the axial region of bolt 55, be formed with notch with the bolt of relevant the 1st execution mode.And then, marmem portion is installed around the axial region of bolt 55, the heating part is installed around marmem portion, cap 57 is installed around the heating part.Form bindiny mechanism 53 by a plurality of bolts 55 that are formed with notch, the marmem portion and the heating part that are installed on the bolt 55.By the heating part is switched on, marmem portion pulls bolt 55 along the axis direction thermal expansion of bolt 55 along axis direction.As a result, bolt 55 ruptures at notch.If all bolts 55 fracture, then target assembly 51 11 breaks away from and falls naturally from the beam tube road, and quilt is accommodated in the returnable 43.
Also the target recovering device 2 with relevant the 1st execution mode is identical about the target recovering device of the 2nd execution mode, target 6 can be pulled down and easily reclaimed from beam tube road 11 with target assembly 51, particularly, can make target is received into operation automation easily till the returnable 43, can when preventing, easily reclaim target assembly 51 by the irradiation of radioactive ray.
More than, based on its execution mode the present invention is illustrated particularly, but the present invention is not limited to above-mentioned execution mode.For example, target portion is not limited to accept the irradiation of accelerated particle under the state in the reception room that is contained in neutron degradation portion and the form that produces neutron, also can be under target portion approaches the state of neutron degradation portion, accept the irradiation of accelerated particle and produce neutron, when reclaiming target portion, neutron degradation portion is moved so that the form that target portion is left.In addition, also can be with fixation side flange and the structure of accepting the side flange binding with target portion by screw bolt and nut with the bindiny mechanism that the dismounting of pipeline pipe is connected freely.In addition, the mode of removing that is connected of target portion and pipeline pipe being not limited to remote operation and control automatically, also can be manually, and also the operator is arranged on mounting on the position of regulation and carries out the recovery of target portion in the returnable on the chassis at every turn.
Claims (5)
1, a kind of target recovering device, from the end that possesses pipeline pipe that accelerated particle passes through, is connected the pipeline pipe and the irradiation of accepting above-mentioned accelerated particle produces the target portion of neutron and make the neutron generation device of the neutron degradation portion of the neutron degradation that above-mentioned target portion produces reclaim above-mentioned target portion, it is characterized in that possessing:
Driving mechanism relatively moves the relative aforementioned tube deferent of above-mentioned neutron degradation portion, and above-mentioned target portion is left from above-mentioned neutron degradation portion; With
Bindiny mechanism is connected the aforementioned tube deferent freely with above-mentioned target portion dismounting.
2, target recovering device as claimed in claim 1 is characterized in that,
Above-mentioned neutron degradation portion has the reception room of accommodating above-mentioned target portion;
Above-mentioned driving mechanism makes above-mentioned target portion leave from above-mentioned neutron degradation portion, and above-mentioned target portion is exposed in above-mentioned reception room.
3, target recovering device as claimed in claim 1 or 2 is characterized in that,
Also possesses the pipe portion that makes above-mentioned target portion be attached at the end of aforementioned tube deferent;
Above-mentioned bindiny mechanism has:
Fixed mechanism is with the end binding of aforementioned tube portion and aforementioned tube deferent;
Thermal expansion portion loosens the binding strength of said fixing mechanism by thermal expansion; With
Heat above-mentioned thermal expansion portion the heating part.
4, target recovering device as claimed in claim 3 is characterized in that,
End at the aforementioned tube deferent is provided with the fixation side flange;
Be formed with the side flange of accepting that is connected on the said fixing side flange in aforementioned tube portion;
Said fixing mechanism has the said fixing side flange of encirclement and above-mentioned clamp chain of accepting side flange and reeling and the bolt part that the two ends of above-mentioned clamp chain are connected to each other;
Above-mentioned thermal expansion portion be installed in above-mentioned bolt part around, and, by thermal expansion above-mentioned bolt part is pulled vertically, the binding strength of above-mentioned bolt part is loosened.
5, target recovering device as claimed in claim 2 is characterized in that,
Also possess:
Recoverer reclaims the above-mentioned target portion that has removed after the connection of above-mentioned bindiny mechanism; With
The recoverer driving mechanism can keep above-mentioned recoverer movably;
Above-mentioned neutron degradation portion can move between the retreating position that above-mentioned target portion is housed in the collecting position in the above-mentioned reception room and above-mentioned target portion is exposed in the above-mentioned reception room;
Above-mentioned recoverer driving mechanism is under the situation of above-mentioned collecting position in above-mentioned neutron degradation portion, above-mentioned recoverer is remained on the position of readiness that leaves from above-mentioned neutron degradation portion, be under the situation of above-mentioned retreating position in above-mentioned neutron degradation portion, above-mentioned recoverer is remained on recovery position as the vertical below of above-mentioned target portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP046633/2008 | 2008-02-27 | ||
| JP2008046633A JP5178238B2 (en) | 2008-02-27 | 2008-02-27 | Target recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101521981A true CN101521981A (en) | 2009-09-02 |
| CN101521981B CN101521981B (en) | 2011-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101266069A Expired - Fee Related CN101521981B (en) | 2008-02-27 | 2009-02-27 | target recovery device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5178238B2 (en) |
| KR (1) | KR101039537B1 (en) |
| CN (1) | CN101521981B (en) |
| TW (1) | TWI407456B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5178238B2 (en) | 2013-04-10 |
| KR101039537B1 (en) | 2011-06-09 |
| TW200941505A (en) | 2009-10-01 |
| KR20090092713A (en) | 2009-09-01 |
| JP2009204428A (en) | 2009-09-10 |
| TWI407456B (en) | 2013-09-01 |
| CN101521981B (en) | 2011-12-07 |
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