CN204582333U - A pile three irradiates the anticancer nucleic neutron knife of seat layout - Google Patents
A pile three irradiates the anticancer nucleic neutron knife of seat layout Download PDFInfo
- Publication number
- CN204582333U CN204582333U CN201520201009.9U CN201520201009U CN204582333U CN 204582333 U CN204582333 U CN 204582333U CN 201520201009 U CN201520201009 U CN 201520201009U CN 204582333 U CN204582333 U CN 204582333U
- Authority
- CN
- China
- Prior art keywords
- neutron
- superthermal
- collimator
- combined beam
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Radiation-Therapy Devices (AREA)
Abstract
This utility model belongs to a kind of anticancer nucleic neutron knife, and specifically disclose the anticancer nucleic neutron knife that a kind of a pile three irradiates seat layout, the reactor core sidewall overcoat of this neutron knife has side beryllium tore of reflection, is provided with end beryllium reflecting disc bottom reactor core; Be provided with left aluminum watt part outside the side of side beryllium tore of reflection, be provided with right graphite tile part outside the opposite side of side beryllium tore of reflection, left aluminum watt part and right graphite tile part insert in lower shell; Immediately aluminum horizontal combined beam casing parietal layer on the left of lower shell, the casing parietal layer of the lower shell opposite side immediately horizontal thermal neutron post of aluminum, the parietal layer of the casing connected with about lower shell is all arc plate shape, constructs the irradiation seat of difference in functionality in casing.Vertical epithermal neutron is installed below lower shell base plate and irradiates seat.This anticancer nucleic neutron knife can irradiate multiple patient after a reactor startup, and also look after different carcinoma class patient can irradiation up to standard simultaneously simultaneously.
Description
Technical field
This utility model belongs to a kind of anticancer nucleic neutron knife, namely realizes boron or gadolinium neutron absorption a kind of nuclear reactor source irradiates device for cancer, is specifically related to the anticancer nucleic neutron knife that a kind of a pile three irradiates seat layout.
Background technology
Through boron neutron capture therapy (BNCT) applied research in more than 60 years of various countries' research reactor, define according to the different line classification of therapentic part:
Cortex tumor irradiates (0-1.5cm)---thermal beam;
Human body superficial part tumor irradiates (1.5-4.5cm)---cross thermal beam (combined beam);
Human body deep tumor irradiates (4.5-7.0cm)---epithermal neutron beam;
In vitro irradiation---the thermal neutron post of internal organs (part or one integral piece).
In the clinical heap of existing BNCT, a heap only establishes a heat bundle or an epithermal neutron beam, although Japan possesses three kinds of functions (heat, mixed, superthermal exchange) with heap is a branch of, Argentina have employed the superthermal a branch of dual-purpose design with mixing, but it often sets a kind of function shutdown must regulate bundle moderator thickness and (or) cadmium regulating course thickness, and carry out reflecting, the adjustment of screen layer, parameter and the performance of checking new bundle is also needed after setting, Clinical practice efficiency is low, only be applicable to single example examination at present to control, the need of customary treatment in the future can not be met.
At present, the heat bundle of domestic prior art neutron source only provides the use of zoopery or the irradiation of superficial part tumor, and the beam intensity of its superthermal bundle is too low, and the required irradiation time for the treatment of is long.
The customary therapy equipment of BNCT, it is many as far as possible that reactor startup not only irradiates number of patients, and also look after different carcinoma class patient can irradiation up to standard simultaneously simultaneously, and the neutron source apparatus in currently available technology cannot realize.
Summary of the invention
The purpose of this utility model is to provide a kind of a pile three to irradiate the anticancer nucleic neutron knife of seat layout, and this neutron knife can irradiate multiple patient after a reactor startup, and also look after different carcinoma class patient can irradiation up to standard simultaneously simultaneously.
Realize the technical scheme of this utility model object: a kind of a pile three irradiates the anticancer nucleic neutron knife of seat layout, this anticancer nucleic neutron knife comprises reactor core, left aluminum watt part, right graphite tile part, side beryllium tore of reflection, end beryllium reflecting disc, level mixing neutron exposure seat, horizontal thermal neutron post irradiates seat, vertical epithermal neutron irradiates seat, reactor core sidewall overcoat has side beryllium tore of reflection, is provided with end beryllium reflecting disc bottom reactor core, be provided with left aluminum watt part outside the side of side beryllium tore of reflection, be provided with right graphite tile part outside the opposite side of side beryllium tore of reflection, left aluminum watt part and right graphite tile part insert in lower shell, immediately aluminum horizontal combined beam casing parietal layer on the left of lower shell, lower shell opposite side is aluminum horizontal thermal neutron post casing parietal layer immediately, the parietal layer of the casing connected with about lower shell is all arc plate shape, the outside of horizontal combined beam casing parietal layer is provided with level mixing neutron exposure seat, level mixing neutron exposure seat is embedded in horizontal combined beam casing parietal layer, horizontal thermal neutron post is installed outside horizontal thermal neutron post casing parietal layer and irradiates seat, horizontal thermal neutron post irradiates seat and is embedded in horizontal thermal neutron post casing parietal layer, vertical epithermal neutron is installed below lower shell base plate and irradiates seat.
Described level mixing neutron exposure seat comprises deceleration filter, combined beam reflector, combined beam collimator, the outer collimator of combined beam, the outer collimator mouth of combined beam, deceleration filter is provided with outside horizontal combined beam casing parietal layer, the outside of deceleration filter is embedded in combined beam reflector, the inner side of combined beam collimator is embedded in outside combined beam reflector, the outside of combined beam collimator is wrapped with the outer collimator of combined beam, and combined beam collimator outboard end place is embedded with the outer collimator mouth of combined beam.
Described level mixing neutron exposure seat also comprises the first neutron shield device, the second neutron shield device, combined beam gamma shielding device, trineutron shielding device, the middle part of combined beam collimator is wrapped with the second neutron shield device, the outer collimator mouth of combined beam is positioned at the outer collimator of combined beam, the outer collimator mouth of combined beam, combined beam collimator inner formation level mixing neutron beam duct; The outer collimator of combined beam is wrapped with combined beam gamma shielding device and trineutron shielding device, and combined beam gamma shielding device is positioned at inside trineutron shielding device; It is outside that first neutron shield device is wrapped in combined beam reflector, and the lateral surface of the second neutron shield device and combined beam gamma shielding device medial surface are fitted.
Described deceleration filter is combined by graphite linings, Al layer, MgF2 layer, combined beam collimator is the bismuth rounding taper type collimator of hollow, trineutron shielding device and the outer collimator mouth of combined beam are made by the polyethylene containing LiF mass percent 70%, the outer collimator material of combined beam is the Pb-B-Poly of Pb percentage by weight 80%, Poly percentage by weight 19%, B4C percentage by weight 1%, combined beam reflector and combined beam gamma shielding device are built into by lead brick, and the first neutron shield device is the B-Poly plate of B4C percentage by weight 10%; The frustum of a cone cavity that second neutron shield device is made up of the polyethylene board comprising B4C mass percent 10% and the graphite block be filled within frustum of a cone cavity form.
Described horizontal thermal neutron post irradiates seat and comprises the first neutron degradation device, plume reflector, the second neutron degradation device, the first neutron degradation device is provided with outside horizontal thermal neutron post casing parietal layer, plume reflector is provided with outside first neutron degradation device, be provided with the second neutron degradation device in plume reflector, the second neutron degradation device center has plume exposure cavity.
The first gamma shielding that described horizontal thermal neutron post irradiation seat also comprises between the first neutron degradation device and plume reflector shields, be positioned at the second gamma shielding screen of plume exposure cavity, for wrapping up the plume neutron shield device of plume reflector, be positioned at the plume gamma shielding device outside plume neutron shield device.
The first described neutron degradation device and the second neutron degradation device are assembled by core level graphite block and form, the material of the first gamma shielding screen, the second gamma shielding screen is bismuth, plume reflector and plume gamma shielding device are built into by lead brick, and plume neutron shield device is the B-Poly plate of B4C percentage by weight 10%.
Described vertical epithermal neutron irradiates seat and comprises graphite body, a Cd screen, slowing down filter, the 2nd Cd screen, the outer collimator of superthermal beam collimator, superthermal bundle, the outer collimator mouth of superthermal bundle arranged from top to bottom, and graphite body top is embedded between horizontal combined beam casing parietal layer and horizontal thermal neutron post casing parietal layer.
Described vertical epithermal neutron irradiates seat and also comprises superthermal bundle first reflector, the first neutron absorber, superthermal bundle second reflector, the second neutron absorber, superthermal bundle outer collimator, superthermal bundle gamma shielding device, trineutron absorber, slowing down filter is wrapped with superthermal bundle first reflector, and superthermal bundle first reflector is wrapped with the first neutron absorber; Superthermal beam collimator top is wrapped with superthermal bundle second reflector, is wrapped with the second neutron absorber in the middle part of superthermal beam collimator, and superthermal beam collimator bottom is wrapped with the outer collimator of superthermal bundle; The outer collimator top of superthermal bundle is wrapped with trineutron absorber, superthermal bundle gamma shielding device, and superthermal bundle gamma shielding device bottom surface and trineutron absorber end face are fitted; The outer collimator mouth of superthermal bundle to be embedded in the outer collimator of superthermal bundle and to be positioned at superthermal beam collimator end, forms vertical epithermal neutron duct in the outer collimator mouth of superthermal beam collimator, superthermal bundle.
By Al layer, Fluental, (layer, thick Al layer, Fluental layer successively stack combinations form described slowing down filter, and the mass percent of Fluental layer consists of 69%AlF
3, 30%Al, 1%
6liF, superthermal beam collimator is the bismuth rounding taper type collimator of hollow, the outer collimator material of superthermal bundle is Pb percentage by weight 80%, Poly percentage by weight 19%, the Pb-B-Poly of B4C percentage by weight 1%, the outer collimator mouth of superthermal bundle is made up of the polyethylene containing LiF mass percent 70%, superthermal bundle first reflector, second reflector and superthermal bundle gamma shielding device are built into by lead brick, first neutron absorber is the B-Poly plate of B4C percentage by weight 10%, the frustum of a cone cavity that second neutron absorber is made up of the polyethylene board containing B4C mass percent 10%, and the graphite block composition be filled within frustum of a cone cavity, trineutron absorber is made up of the polyethylene containing LiF mass percent 70%.
Advantageous Effects of the present utility model is:
(1) feature that anticancer nucleic neutron knife of the present utility model is little based on micro-heap volume, power is low, in order to obtain high therapeutic dose, treatment neutron flux is directly drawn from reactor core, and is drawn by the test duct outside transformation reflecting layer unlike large and medium-sized heap.Anticancer nucleic neutron knife of the present utility model selects the mode of getting through reactor core supported underneath loaded concrete stratum in layout, develop the space that vertical epithermal neutron irradiates seat, the non-application space of space as ground layer segment that vertical epithermal neutron irradiates seat is installed, do not affect the technique transport operation flow process of reactor core, the overall general layout that to remain with micro-heap be core.
(2) anticancer nucleic neutron knife employing level mixing neutron exposure seat of the present utility model, horizontal thermal neutron post irradiation seat two overlap horizontal irradiation device and outwards draw from shell ring side direction heap container, squeeze out the Chi Shui of corresponding site, in irradiation unit, main configuration is that neutron filters and slowing material, lower than water to the absorbability of neutron, not only can not increase the uranium loading amount of reactor core, also have the effect of saving uranium loading amount.
(3) the reactor core left and right sides of anticancer nucleic neutron knife of the present utility model part Chi Shui by level mixing neutron exposure seat, horizontal thermal neutron post irradiate seat substitute, but before and after lower shell ring the corresponding site of both sides without other items, still shared by the water of pond; Thus, on thermal technology, the Natural Circulation heat release to top Chi Shui can be maintained.
(4) surround the left and right of reactor core with immediately below large area level mixes neutron exposure seat, horizontal thermal neutron post irradiates seat, vertical epithermal neutron irradiates seat also can export section reactor core heat, and its Natural Circulation, free convection and natural heat transfer mechanism are guaranteed substantially.
(5) level mixing neutron exposure seat, horizontal thermal neutron post irradiates seat, vertical epithermal neutron irradiates seat and surrounds reactor core, make reactor core circumference, lower to released neutron almost 100% illuminated seat intercepted and captured, thus make neutron and be all applied to treatment patient the most economically, improve therapeutic effect.
(6) superthermal bundle irradiates the slowing down filter that slowing down filter in seat adopts the thick Fluental composition of 10.35cm thick Al layer, 15cm thick Fluental, 10cm thick Al layer, 15cm, and superthermal bundle exit parameter can be made to reach 1.26 × 10
9ncm
-2s
-1even if consider the error that engineering construction causes also can ensure that superthermal bundle meets international standards (1 × 10
9ncm
-2s
-1).
(7) combined beam irradiates the deceleration filter of seat, material (graphite) stronger for moderating power is configured in front-end and back-end, material (Al, MgF that moderating power is more weak
2) be configured in centre and effectively can raise neutron flux.Select the thick graphite linings of 30cm, 11cm thick Al layer, the thick MgF of 9cm
2the deceleration filter of the thick graphite composition of layer, 13cm, both will cause because slowing material is long neutron flux on the low side, the interference background of fast neutron in soft tissue also can not be caused because slowing material is too short bigger than normal.The outlet thermal neutron flux of combined beam and epithermal neutron flux are respectively 1.1 × 10
9ncm
-2s
-1, 5 × 10
8ncm
-2s
-1.
(8) plume choice for use double layer screen, effectively can reduce the γ background of irradiation intracavity, the thermal neutron flux in plume is up to 1.02 × 10
10ncm
2s
-1.
Accompanying drawing explanation
Fig. 1 is the sectional view that a kind of a pile three provided by the utility model irradiates the anticancer nucleic neutron knife of seat layout;
Fig. 2 is the main pseudosection that a kind of a pile three provided by the utility model irradiates the level mixing neutron exposure seat of the anticancer nucleic neutron knife of seat layout.
Fig. 3 is the top plan view that a kind of a pile three provided by the utility model irradiates the level mixing neutron exposure seat of the anticancer nucleic neutron knife of seat layout.
Fig. 4 is the main pseudosection that a kind of a pile three provided by the utility model irradiates the horizontal thermal neutron post irradiation seat of the anticancer nucleic neutron knife of seat layout.
Fig. 5 is the top plan view that a kind of a pile three provided by the utility model irradiates the horizontal thermal neutron post irradiation seat of the anticancer nucleic neutron knife of seat layout.
Fig. 6 is the main pseudosection that a kind of a pile three provided by the utility model irradiates the vertical epithermal neutron irradiation seat of the anticancer nucleic neutron knife of seat layout.
In figure: 1 is side beryllium tore of reflection, 2 is left aluminum watt part, 3 is lower shell, 4 is horizontal combined beam casing parietal layer, 5 is deceleration filter, 6 is the first neutron shield device, 7 is combined beam reflector, 8 is combined beam collimator, 9 is the second neutron shield device, 10 is combined beam gamma shielding device, 11 is trineutron shielding device, 12 is the outer collimator of combined beam, 13 is the outer collimator mouth of combined beam, 14 is the first neutron degradation device, 15 is the first gamma shielding screen, 16 is plume reflector, 17 is the second gamma shielding screen, 18 is the second neutron degradation device, 19 is plume neutron shield device, 20 is plume gamma shielding device, 21 is graphite body, 22 is the first cadmium screen, 23 is slowing down filter, 24 is the second cadmium screen, 25 is superthermal beam collimator, 26 is superthermal bundle gamma shielding device, 27 is trineutron absorber, 28 is the outer collimator of superthermal bundle, 29 is the outer collimator mouth of superthermal bundle, 30 is the second neutron absorber, 31 is superthermal bundle second reflector, 32 is the first neutron absorber, 33 is superthermal bundle first reflector, 34 is level mixing neutron exposure seat, 35 is that horizontal thermal neutron post irradiates seat, 36 is that vertical epithermal neutron irradiates seat, 37 is reactor core, 38 is end beryllium reflecting disc, 39 is right graphite tile part, 40 is horizontal thermal neutron post casing parietal layer.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described in further detail.
As shown in Figure 1 and Figure 4, a kind of a pile three provided by the utility model irradiates the anticancer nucleic neutron knife of seat layout, this neutron knife comprises reactor core 37, left aluminum watt part 2, right graphite tile part 39, side beryllium tore of reflection 1, end beryllium reflecting disc 38, level mixing neutron exposure seat 34, horizontal thermal neutron post irradiates seat 35, vertical epithermal neutron irradiates seat 36, reactor core 37 sidewall overcoat has side beryllium tore of reflection 1, installs end beryllium reflecting disc 38 bottom reactor core 37; Be provided with the left aluminum watt part 2 of circular arc tubular outside the side of side beryllium tore of reflection 1, outside the opposite side of side beryllium tore of reflection 1, be provided with the right graphite tile part 39 of circular arc tubular; Leave gap between left aluminum watt part 2 and right graphite tile part 39, this gap is watering cycle space.Immediately horizontal combined beam casing parietal layer 4 outside lower shell 3 side, lower shell 3 opposite side is horizontal thermal neutron post casing parietal layer 40 immediately; The outside of horizontal combined beam casing parietal layer 4 is provided with level mixing neutron exposure seat 34, and level mixing neutron exposure seat 34 is embedded in horizontal combined beam casing parietal layer 4; Install horizontal thermal neutron post outside horizontal thermal neutron post casing parietal layer 40 and irradiate seat 35, horizontal thermal neutron post irradiates seat 35 and is embedded in horizontal thermal neutron post casing parietal layer 40.The horizontal center line axis of level mixing neutron exposure seat 34 overlaps with reactor core 37 horizontal axis, the horizontal center line axis that horizontal thermal neutron post irradiates seat 34 overlaps with reactor core 37 horizontal axis, and level mixing neutron exposure seat 34, horizontal thermal neutron post irradiation seat 35 line centered by the vertical axis of reactor core 37 are symmetrical.Be provided with vertical epithermal neutron below end beryllium reflecting disc 38 and irradiate seat 36, the vertical axis that vertical epithermal neutron irradiates seat 36 overlaps with the vertical axis of reactor core 37.
Get through reactor core 37 supported underneath loaded concrete stratum, formed and the space that vertical epithermal neutron irradiates seat 36 is installed, and set up exposure cell below vertical epithermal neutron irradiation seat 36.In order to ensure quality and the index of superthermal bundle, vertical epithermal neutron irradiates the space that seat 36 occupies part of horizontal mixing neutron exposure seat 34 and horizontal thermal neutron column base 35, is embedded in respectively in the bottom inside level mixing neutron exposure seat 34, horizontal thermal neutron column base 35 by vertical epithermal neutron irradiation both sides, seat 36 top.
As Fig. 1, 2, shown in 3, level mixing neutron exposure seat 34 comprises deceleration filter 5, first neutron shield device 6, combined beam reflector 7, combined beam collimator 8, second neutron shield device 9, combined beam gamma shielding device 10, trineutron shielding device 11, the outer collimator 12 of combined beam, the outer collimator mouth 13 of combined beam, circular arc cylinder is had inside deceleration filter 5, this circular arc cylinder is horizontal combined beam casing parietal layer 4 immediately, the outside of deceleration filter 5 is embedded in combined beam reflector 7, one wing base of combined beam collimator 8 is embedded in outside combined beam reflector 7, the middle part of combined beam collimator 8 is wrapped with the second neutron shield device 9, the opposite side of combined beam collimator 8 is wrapped with the outer collimator 12 of combined beam, the outer collimator of combined beam 12 is interior, combined beam collimator 8 outboard end place is embedded with the outer collimator mouth 13 of combined beam.The outer collimator mouth 13 of combined beam, combined beam collimator 8 inner formation level mixing neutron beam duct A.The outer collimator 12 of combined beam is wrapped with combined beam gamma shielding device 10 and trineutron shielding device 11, and combined beam gamma shielding device 10 is positioned at inside trineutron shielding device 11.First neutron shield device 6 is wrapped in outside combined beam reflector 7, and lateral surface and combined beam gamma shielding device 10 medial surface of the second neutron shield device 9 are fitted.
Deceleration filter 5 is formed by the thick graphite linings of 30cm, 11cm thick Al layer, 9cm thick MgF2 layer, the thick graphite linings of 13cm successively stack combinations.
Combined beam collimator 8 is the bismuth rounding taper type collimator of hollow, and exit is cylindrical, and the outer collimator mouth 13 of combined beam is made up of the polyethylene containing LiF mass percent 70%; Outer collimator 12 material of combined beam is the Pb-B-Poly of Pb percentage by weight 80%, Poly percentage by weight 19%, B4C percentage by weight 1%.
Combined beam reflector 7 and combined beam gamma shielding device 10 are built into by lead brick.
First neutron shield device 6 is the B-Poly plate of B4C percentage by weight 10%; Second neutron shield device 9 comprises the frustum of a cone cavity that the polyethylene board containing B4C mass percent 10% is made, and is filled in the graphite block within frustum of a cone cavity; Trineutron shielding device 11 is made up of the polyethylene containing LiF mass percent 70%.
As shown in Figure 4,5, horizontal thermal neutron post irradiates seat 35 and comprises the first neutron degradation device 14, first gamma shielding screen 15, plume reflector 16, second gamma shielding screen the 17, second neutron degradation device 18, plume neutron shield device 19, plume gamma shielding device 20, have circular arc cylinder inside first neutron degradation device 14, this circular arc cylinder is horizontal thermal neutron post casing parietal layer 40 immediately.Fit between first neutron degradation device 14 lateral surface and plume reflector 16 1 side external surface, be embedded with the first gamma shielding between first neutron degradation device 14 and plume reflector 16 and shield 15, one end of first gamma shielding screen 15 is embedded in the groove of the first neutron degradation device 14, and the other end of the first gamma shielding screen 15 runs through plume reflector 16.Be enclosed with in plume reflector 16 second neutron degradation device 18, first gamma shielding screen 15 with second neutron degradation device 18 fit, the second neutron degradation device 18 center has plume exposure cavity B, in plume exposure cavity B side be embedded with second gamma shielding shield 17.Plume reflector 16 is wrapped with plume neutron shield device 19, and plume neutron shield device 19 lateral surface and plume gamma shielding device 20 medial surface are fitted.
First neutron degradation device 14 and the second neutron degradation device 18 are assembled by high-purity core level graphite block and form.The material of the first gamma shielding screen 15, second gamma shielding screen 17 is bismuth.
Plume reflector 16 and plume gamma shielding device 20 are built into by lead brick.
Plume neutron shield device 19 is the B-Poly plate of B4C percentage by weight 10%.
As shown in Figure 6, vertical epithermal neutron irradiates seat 36 and comprises graphite body 21, a Cd screen 22, slowing down filter 23, the 2nd Cd screen 24, superthermal beam collimator 25, the outer collimator 28 of superthermal bundle, the outer collimator mouth 29 of superthermal bundle arranged successively from top to bottom, and graphite body 21 top is embedded between horizontal combined beam casing parietal layer 4, horizontal thermal neutron post casing parietal layer 40.Graphite body 21 bottom surface and a Cd shield 22 end faces and fit, and a Cd shields 22 bottom surfaces and slowing down filter 23 end face is fitted, and slowing down filter 23 is wrapped with superthermal bundle first reflector 33, and superthermal bundle first reflector 33 is wrapped with the first neutron absorber 32.Superthermal bundle first reflector 33 bottom surface, the first neutron absorber 32 bottom surface are all shielded 24 end faces with the 2nd Cd and are fitted, and the 2nd Cd shields 24 bottom surfaces and superthermal beam collimator 25 end face is fitted.Superthermal beam collimator 25 top is wrapped with superthermal bundle second reflector 31, is wrapped with the second neutron absorber 30 in the middle part of superthermal beam collimator 25, and superthermal beam collimator 25 bottom is wrapped with the outer collimator 28 of superthermal bundle.Outer collimator 28 top of superthermal bundle is wrapped with trineutron absorber 27, superthermal bundle gamma shielding device 26, and superthermal bundle gamma shielding device 26 bottom surface and trineutron absorber 27 end face are fitted; The outer collimator of superthermal bundle 28 is interior, superthermal beam collimator 25 end is embedded with the outer collimator mouth 29 of superthermal bundle.Vertical epithermal neutron duct C is formed in the outer collimator mouth 29 of superthermal beam collimator 25, superthermal bundle.
Slowing down filter 23 is made up of 10.35cm thick Al layer, 15cm thick Fluental layer, 10cm thick Al layer, the thick Fluental layer of 15cm successively stack combinations.Wherein, the mass percent of Fluental consists of 69%AlF
3, 30%Al, 1%
6liF.
Superthermal beam collimator 25 is the bismuth rounding taper type collimator of hollow, and exit is cylindrical; Outer collimator 28 material of superthermal bundle is the Pb-B-Poly of Pb percentage by weight 80%, Poly percentage by weight 19%, B4C percentage by weight 1%; The outer collimator mouth 29 of superthermal bundle is made up of the polyethylene containing LiF mass percent 70%.
Superthermal bundle first reflector 33, second reflector 31 and superthermal bundle gamma shielding device 26 are built into by lead brick.
First neutron absorber 32 is the B-Poly plate of B4C percentage by weight 10%; Second neutron absorber 30 comprises the frustum of a cone cavity that the polyethylene board containing B4C mass percent 10% is made, and is filled in the graphite block within frustum of a cone cavity; Trineutron absorber 27 is made up of the polyethylene containing LiF mass percent 70%.
Below in conjunction with accompanying drawing 1 to 6, the work process that a kind of a pile three provided by the utility model irradiates the anticancer nucleic neutron knife of seat layout is described:
After reactor start-up, the neutron that reactor core 37 leaks out by vertical direction through end beryllium reflecting disc 38, enter vertical epithermal neutron and irradiate seat 36, successively through graphite body 21, a Cd screen 22, slowing down filter 23, the 2nd Cd screen 24, superthermal beam collimator 25, the deceleration of the outer collimator 28 of superthermal bundle, slowing down, from superthermal bundle, collimator mouth 29 draws epithermal neutron beam.The neutron that reactor core 37 leaks out by horizontal direction through side beryllium tore of reflection 1, left aluminum watt part 2, lower shell 3, horizontal combined beam casing parietal layer 4, enter level mixing neutron exposure seat 34, pass through the deceleration slowing down of deceleration filter 5, combined beam reflector 7, combined beam collimator 8 successively, from combined beam, collimator mouth 13 draws mixing neutron beam.The neutron that reactor core 37 leaks out by horizontal direction opposite side through side beryllium tore of reflection 1, left graphite tile part 39, lower shell 3, horizontal thermal neutron post casing parietal layer 40, enter horizontal thermal neutron post and irradiate seat 35, successively through the deceleration slowing down of the first neutron degradation device 14, first gamma shielding screen 15, plume reflector 16, second neutron degradation device 18, second gamma shielding screen 17, in plume exposure cavity B, netron-flux density can reach 1.02 × 10
10ncm
2s
-1.
In conjunction with the accompanying drawings and embodiments this utility model is explained in detail above, but this utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from this utility model aim.The content be not described in detail in this utility model all can adopt prior art.
Claims (10)
1. an a pile three irradiates the anticancer nucleic neutron knife of seat layout, it is characterized in that: this neutron knife comprises reactor core (37), left aluminum watt part (2), right graphite tile part (39), side beryllium tore of reflection (1), end beryllium reflecting disc (38), level mixing neutron exposure seat (34), horizontal thermal neutron post irradiates seat (35), vertical epithermal neutron irradiates seat (36), reactor core (37) sidewall overcoat has side beryllium tore of reflection (1), and reactor core (37) bottom is provided with end beryllium reflecting disc (38); Left aluminum watt part (2) is provided with outside the side of side beryllium tore of reflection (1), be provided with right graphite tile part (39) outside the opposite side of side beryllium tore of reflection (1), left aluminum watt part (2) and right graphite tile part (39) insert lower shell (3); The outer immediately horizontal combined beam casing parietal layer (4) in lower shell (3) left side, lower shell (3) opposite side immediately horizontal thermal neutron post casing parietal layer (40) outward; The parietal layer of the casing connected with about lower shell is all arc plate shape; The outside of horizontal combined beam casing parietal layer (4) is provided with level mixing neutron exposure seat (34), level mixing neutron exposure seat (34) is embedded in horizontal combined beam casing parietal layer (4), horizontal thermal neutron post casing parietal layer (40) outside is provided with horizontal thermal neutron post and irradiates seat (35), horizontal thermal neutron post irradiates seat (35) and is embedded in horizontal thermal neutron post casing parietal layer (40), is provided with vertical epithermal neutron and irradiates seat (36) below lower shell (3) base plate.
2. a kind of a pile three according to claim 1 irradiates the anticancer nucleic neutron knife of seat layout, it is characterized in that: described level mixing neutron exposure seat (34) comprises deceleration filter (5), combined beam reflector (7), combined beam collimator (8), the outer collimator (12) of combined beam, the outer collimator mouth (13) of combined beam, horizontal combined beam casing parietal layer (4) outside is provided with deceleration filter (5), the outside of deceleration filter (5) is embedded in combined beam reflector (7), the inner side of combined beam collimator (8) is embedded in combined beam reflector (7) outside, the outside of combined beam collimator (8) is wrapped with the outer collimator (12) of combined beam, combined beam collimator (8) outboard end place is embedded with the outer collimator mouth (13) of combined beam.
3. a kind of a pile three according to claim 2 irradiates the anticancer nucleic neutron knife of seat layout, it is characterized in that: described level mixing neutron exposure seat (34) also comprises the first neutron shield device (6), second neutron shield device (9), combined beam gamma shielding device (10), trineutron shielding device (11), the middle part of combined beam collimator (8) is wrapped with the second neutron shield device (9), the outer collimator mouth (13) of combined beam is positioned at the outer collimator (12) of combined beam, the outer collimator mouth (13) of combined beam, inner formation level mixing neutron beam duct (A) of combined beam collimator (8), the outer collimator (12) of combined beam is wrapped with combined beam gamma shielding device (10) and trineutron shielding device (11), and combined beam gamma shielding device (10) is positioned at trineutron shielding device (11) inner side, it is outside that first neutron shield device (6) is wrapped in combined beam reflector (7), and the lateral surface of the second neutron shield device (9) and combined beam gamma shielding device (10) medial surface are fitted.
4. a kind of a pile three according to claim 3 irradiates the anticancer nucleic neutron knife of seat layout, it is characterized in that: described deceleration filter (5) is by graphite linings, Al layer, MgF2 layer combines, the bismuth rounding taper type collimator that combined beam collimator (8) is hollow, trineutron shielding device (11) and the outer collimator mouth (13) of combined beam are made by the polyethylene containing LiF mass percent 70%, outer collimator (12) material of combined beam is Pb percentage by weight 80%, Poly percentage by weight 19%, the Pb-B-Poly of B4C percentage by weight 1%, combined beam reflector (7) and combined beam gamma shielding device (10) are built into by lead brick, the B-Poly plate that first neutron shield device (6) is B4C percentage by weight 10%, the frustum of a cone cavity that second neutron shield device (9) is made up of the polyethylene board comprising B4C mass percent 10% and the graphite block be filled within frustum of a cone cavity form.
5. a kind of a pile three according to any one of claim 4 irradiates the anticancer nucleic neutron knife of seat layout, it is characterized in that: described horizontal thermal neutron post irradiates seat (35) and comprises the first neutron degradation device (14), plume reflector (16), second neutron degradation device (18), horizontal thermal neutron post casing parietal layer (40) outside is provided with the first neutron degradation device (14), first neutron degradation device (14) outside is provided with plume reflector (16), the second neutron degradation device (18) is provided with in plume reflector (16), second neutron degradation device (18) center has plume exposure cavity (B).
6. a kind of a pile three according to claim 5 irradiates the anticancer nucleic neutron knife of seat layout, it is characterized in that: described horizontal thermal neutron post irradiation seat (35) also comprises the first gamma shielding be positioned between the first neutron degradation device (14) and plume reflector (16) and shields (15), be positioned at the second gamma shielding screen (17) of plume exposure cavity (B), for wrapping up the plume neutron shield device (19) of plume reflector (16), be positioned at the plume gamma shielding device (20) in plume neutron shield device (19) outside.
7. a kind of a pile three according to claim 6 irradiates the anticancer nucleic neutron knife of seat layout, it is characterized in that: the first described neutron degradation device (14) and the second neutron degradation device (18) are assembled by core level graphite block and form, the material of the first gamma shielding screen (15), the second gamma shielding screen (17) is bismuth, plume reflector (16) and plume gamma shielding device (20) are built into by lead brick, the B-Poly plate that plume neutron shield device (19) is B4C percentage by weight 10%.
8. a kind of a pile three according to claim 7 irradiates the anticancer nucleic neutron knife of seat layout, it is characterized in that: described vertical epithermal neutron irradiates seat (36) and comprises the graphite body (21) arranged from top to bottom, one Cd screen (22), slowing down filter (23), 2nd Cd screen (24), superthermal beam collimator (25), the outer collimator (28) of superthermal bundle, the outer collimator mouth (29) of superthermal bundle, graphite body (21) top is embedded in horizontal combined beam casing parietal layer (4), between horizontal thermal neutron post casing parietal layer (40).
9. a kind of a pile three according to claim 8 irradiates the anticancer nucleic neutron knife of seat layout, it is characterized in that: described vertical epithermal neutron irradiates seat (36) and also comprises superthermal bundle first reflector (33), first neutron absorber (32), superthermal bundle second reflector (31), second neutron absorber (30), the outer collimator (28) of superthermal bundle, superthermal bundle gamma shielding device (26), trineutron absorber (27), slowing down filter (23) is wrapped with superthermal bundle first reflector (33), superthermal bundle first reflector (33) is wrapped with the first neutron absorber (32), superthermal beam collimator (25) top is wrapped with superthermal bundle second reflector (31), superthermal beam collimator (25) middle part is wrapped with the second neutron absorber (30), and superthermal beam collimator (25) bottom is wrapped with the outer collimator (28) of superthermal bundle, outer collimator (28) top of superthermal bundle is wrapped with trineutron absorber (27), superthermal bundle gamma shielding device (26), and superthermal bundle gamma shielding device (26) bottom surface and trineutron absorber (27) end face are fitted, the outer collimator mouth (29) of superthermal bundle to be embedded in the outer collimator (28) of superthermal bundle and to be positioned at superthermal beam collimator (25) end, forms vertical epithermal neutron duct (C) in the outer collimator mouth (29) of superthermal beam collimator (25), superthermal bundle.
10. a kind of a pile three according to claim 9 irradiates the anticancer nucleic neutron knife of seat layout, it is characterized in that: described slowing down filter (23) is made up of Al layer, Fluental layer, thick Al layer, 1Fluental layer successively stack combinations, and the mass percent of Fluental layer consists of 69%AlF
3, 30%Al, 1%
6liF, the bismuth rounding taper type collimator that superthermal beam collimator (25) is hollow, outer collimator (28) material of superthermal bundle is Pb percentage by weight 80%, Poly percentage by weight 19%, the Pb-B-Poly of B4C percentage by weight 1%, the outer collimator mouth (29) of superthermal bundle is made up of the polyethylene containing LiF mass percent 70%, superthermal bundle first reflector (33), second reflector (31) and superthermal bundle gamma shielding device (26) are built into by lead brick, the B-Poly plate that first neutron absorber (32) is B4C percentage by weight 10%, the frustum of a cone cavity that second neutron absorber (30) is made up of the polyethylene board containing B4C mass percent 10%, and the graphite block composition be filled within frustum of a cone cavity, trineutron absorber (27) is made up of the polyethylene containing LiF mass percent 70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201009.9U CN204582333U (en) | 2015-04-03 | 2015-04-03 | A pile three irradiates the anticancer nucleic neutron knife of seat layout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201009.9U CN204582333U (en) | 2015-04-03 | 2015-04-03 | A pile three irradiates the anticancer nucleic neutron knife of seat layout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204582333U true CN204582333U (en) | 2015-08-26 |
Family
ID=53918542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520201009.9U Expired - Fee Related CN204582333U (en) | 2015-04-03 | 2015-04-03 | A pile three irradiates the anticancer nucleic neutron knife of seat layout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204582333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771837A (en) * | 2015-04-03 | 2015-07-15 | 中国中原对外工程有限公司 | Cancericidal nuclide neutron knife adopting one-reactor and three-irradiation-seat layout |
| CN111420307A (en) * | 2020-04-16 | 2020-07-17 | 中国原子能科学研究院 | Neutron beam device and neutron irradiation device |
-
2015
- 2015-04-03 CN CN201520201009.9U patent/CN204582333U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771837A (en) * | 2015-04-03 | 2015-07-15 | 中国中原对外工程有限公司 | Cancericidal nuclide neutron knife adopting one-reactor and three-irradiation-seat layout |
| CN104771837B (en) * | 2015-04-03 | 2017-11-28 | 中国中原对外工程有限公司 | A pile three irradiates the anticancer nucleic neutron knife of seat layout |
| CN111420307A (en) * | 2020-04-16 | 2020-07-17 | 中国原子能科学研究院 | Neutron beam device and neutron irradiation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104511096B (en) | Beam-shaping body for neutron capture treatment | |
| CN104771837A (en) | Cancericidal nuclide neutron knife adopting one-reactor and three-irradiation-seat layout | |
| CN202802547U (en) | Neutron beam irradiating apparatus of a hospital neutron irradiator | |
| US5433693A (en) | Neutron-capture therapy apparatus and method | |
| CN207575566U (en) | A kind of neutron capture therapy device | |
| CN107617169A (en) | Beam-shaping body for neutron capture treatment | |
| CN205339881U (en) | Beam shaper for neutron -capture therapy | |
| US5903622A (en) | Accelerator-based neutron source for boron neutron capture therapy (BNCT) and method | |
| CN111420307A (en) | Neutron beam device and neutron irradiation device | |
| CN204319540U (en) | For the beam-shaping body of neutron capture treatment | |
| JP2020520773A (en) | Neutron capture therapy system | |
| CN1277591C (en) | Neutron radiating device in hospital | |
| CN204582333U (en) | A pile three irradiates the anticancer nucleic neutron knife of seat layout | |
| CN209060381U (en) | Neutron capture treatment system | |
| CN107802967B (en) | Micro-stack neutron therapy device and micro-stack neutron therapy system | |
| CN104778987B (en) | Improve the reactor core assembly and its method of vertical epithermal neutron beam irradiation flux | |
| CN206167654U (en) | Neutron treatment device | |
| CN107569779A (en) | Neutron therapy device | |
| CN206081353U (en) | Neutron treatment device | |
| CN110507914B (en) | Neutron retarding material | |
| CN208552892U (en) | MNSR Reactor neutron therapy device and MNSR Reactor neutron therapy system | |
| CN110523007A (en) | Neutron capture treatment system | |
| CN1127093C (en) | Medical radioactive glass microsphere and its nuctear irradiation equipment and method | |
| CN207856091U (en) | Neutron capture treatment system | |
| CN207856088U (en) | Beam-shaping body for neutron capture treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20180403 |